TI Museum
Model: TI-526-01 Code: Ok
Battery: 2 x AG-12
WCase: black plastic WBand: black leather bracelet Face: red / inlay silver frame
Manual: Yes Box: No Light: led
Year: 1979 Price: $ 19.90
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: same model in various color TI-526-02
Model: TI-526-02 Code: Ok
Battery: 2 x AG-12
WCase: black plastic WBand: jeans leather bracelet Face: red / inlay jeans frame
Manual: Yes Box: No Light: led
Year: 1979 Price: $ 19.90
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: same model in various color TI-526-01
Model: TI-527-01 (Stars Wars black gold) Code: ok
Battery: 2 x AG-12
WCase: black plasticWBand: black rubber Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: The excitement of Star Wars, only Texas Instruments has the official Star Wars digital watches ,combining five-functions.
Model: TI-527-02 (Stars Wars grey) Code: ok
Battery: 2 x AG-12
WCase: gray plasticWBand: gray rubber Face: red
Manual: Yes Box: Yes Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: The excitement of Star Wars, only Texas Instruments has the official Star Wars digital watches ,combining five-functions.
Model: TI-53 slanted
Battery: 2 x LR44
Adapter:
Year: 1985 ( RCI 17 85 )
Chip: TPO323
Info: Calculator donated by Ludovisi Giancarlo in 2023 during the 2nd edition "the story with Texas Instruments" in Rieti, (World Chili Pepper Fair).
Model: TI-5315
Battery:
Adapter: AC 110 volt
Year: 1989
Chip: NEC upd7520
Info: modern DESKTOP built in clock
Model: TI-55
Battery: BP 7
Adapter: AC9132
Year: 1979
Chip: TMC1503
Info: TI-55 same as TI-51 III, but TI-55 was sold in the US while TI-51 III was sold in Europe.
Model: TI-55 II programmable
Battery: 2 x LR44
Adapter:
Year: 1984
Chip: TP0456/CD4555, CD4556
Info: This TI-55 II could be called a rare calculator.
Model: TI-551-02 Code: Ok
Battery: 309 Module: 1015471-E
WCase: brown plastic WBand: matching bracelet Face: silver frame
Manual: Yes Box: No Lamp: Tritium
Year: 1977 Price: $ 19.90
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: the same model in black TI-551-10
Model: TI-551-10 Code: Ok
Battery: 309 Module: 1015471-E
WCase: black plastic WBand: matching bracelet Face: silver frame
Manual: Yes Box: No Lamp: Tritium
Year: 1977 Price: $ 19.90
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: the same model in brown TI-551-02
Model: TI-552-10 Code: Ok
Battery: AG5Module: 1015471-E
WCase: black plastic WBand: black leather bracelet Face: LCD
Manual: Yes Box: No Light: Tritium Light
Year: 1977 Price: $ 19.97
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: Thee same model but with a different frame and writing, TI-552-20
Model: TI-552-12 Code: ok
Battery: 2 x AG-3
WCase: gold tone metal WBand: matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
MModel: TI-552-20 Code: Ok
Battery: AG5Module: 1015471-E
WCase: brpwn plastic WBand: brown leather bracelet Face: LCD
Manual: Yes Box: No Light: Tritium Light
Year: 1977 Price: $ 19.97
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: Thee same model but with a different frame and writing, TI-552-10
Model: TI-554-01
Battery: LR 754
WBand: black plastic
WCase: black plastic
Manual: Box / Instr. / Manual
Year: 1979
Price: $ 11.99
Info: Tritium backlight / code ok
Model: TI-554-02
Battery: 392
WBand: brown rubber
WCase: brown plastic
Manual: no
Year: 1979
Price: $ 11.99
Info: Tritium backlight / code ok
Model: TI-555-10 Code: ok
Battery: AG5
WCase: black plastic WBand: black rubber Face: black frame with red button (CMD)
Manual: Yes Box: No Light: no
Year: 1979 Price: $ 15.00
Function: The watch has five functions- hours, minutes, seconds, month and date.
Info: the same model is TI-5550-10
Model: TI-5550-10 Code: ok
Battery: AG5
WCase: black plastic WBand: black rubber Face: black frame with gold button (CMD)
Manual: Yes Box: No Light: no
Year: 1979 Price: $ 15.00
Function: The watch has five functions- hours, minutes, seconds, month and date.
Info: the same model is TI-555-10
Model: TI-558-01
Battery: AG5 or 393
WBand: Black plastic strap
WCase: White Tone Lite
Manual:
Year: 1981
Info: missing / with lamp light / code ok
Model: TI-558-02
Battery: AG5 or 393
WBand: Brown plastic strap
WCase: Golden Tone Lite
Manual:
Year: 1981
Info: with lamp light / code ok
Model: TI-558-03
Battery: AG5 or 393
WBand: Matching metal bracelet
WCase: White Lite Case
Manual:
Year: 1981
Info: code ok
Model: TI-558-04
Battery: AG5
WBand: Matching metal bracelet
WCase: Golden Tone Lite
Manual:
Year: 1981
Info:code ok
Model: TI-558-10
Battery: AG5
WBand: Matching metal bracelet
WCase: white Tone Lite
Manual:
Year:
Info: code my
Model: TI-561-11 (TI-500)Code: Ok
Battery: 309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame
Manual: Yes Box: No Lamp: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: red and green buttons, the same model with the writing TI-250 TI-565-10
Model: TI-561-11 (TI-500 prototype)Code: Ok
Battery: 309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame
Manual: Yes Box: No Lamp: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: prototype created in the Rieti laboratories, for possible productions, red and green buttons, the same model with the writing TI-500 TI-561-11
Model: TI-562-10 Code: ok
Battery: 393
WCase: black plastic WBand: black rubber Face: black frame with red line
Manual: Yes Box: No Light: no
Year: 1981 Price: $ 17.00
Function: The watch has five functions- hours, minutes, seconds, month and date.
Info: the same model is TI-562-11
Model: TI-562-11 Code: ok
Battery: 393
WCase: black plastic WBand: black rubber Face: black frame with orange line
Manual: Yes Box: No Light: no
Year: 1981 Price: $ 17.00
Function: The watch has five functions- hours, minutes, seconds, month and date.
Info: the same model is TI-562-10
Model: TI-565-10 (TI-250) Code: Ok
Battery: 309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame
Manual: Yes Box: No Light: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: gray buttons, the same model without the writing TI-565-11
Model: TI-565-11Code: Ok
Battery: 309
WCase: black plastic WBand: rubber matching bracelet Face: blue frame
Manual: YesBox: No Light: bulb
Year: 1980 Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: Gray buttons, the same model with the writing Texas Instruments TI-565-10
Model: TI-566-10 Code: my
Battery: 309 Module: 1033805
WCase: black plastic WBand:rubber matching braceletFace: red and yellow frame
Manual: Yes Box: No Light:bulb
Year: 1980Price: xxxx
Function: The watch has six functions- hours, minutes, seconds, month , date and light
Info: yellow and red buttons, the same model with the writing Texas Instruments TI-565-10
Model: TI-568-10
Battery: AG5
WBand: brown letaher
WCase: Steel
Manual: NO
Year:
Info: BSA boy scout of America / code OK
Model: TI-57 programmable
Battery: BP6 , BP7
Adapter: AC9131 , AC9132
Year: 1980 Price: L.55.000 + iva 14 %
Chip: TMC1501
Info: From an advertisement of the time! The most versatile. Because it is specialized it has 50 compact program steps. Thus it is a real programmable one which, maintaining at the same time the characteristics of a scientific one, lends itself to solving many problems with extreme flexibility. 8 addressable memories, AOS (algebraic operating system), 9 levels of parentheses, 10 labels, 2 levels of subroutines, 4 decision functions, 2 loop control functions. This is why it is the best-selling scientific-programmable in the world!
Model: TI-57 programmabile
Battery: BP6 , BP7
Adapter: AC9131 , AC9132
Year: 1980 Price: L.55.000 + iva 14 %
Chip: TMC1501
Info: From an advertisement of the time! The most versatile. Because it is specialized it has 50 compact program steps. Thus it is a real programmable one which, maintaining at the same time the characteristics of a scientific one, lends itself to solving many problems with extreme flexibility. 8 addressable memories, AOS (algebraic operating system), 9 levels of parentheses, 10 labels, 2 levels of subroutines, 4 decision functions, 2 loop control functions. This is why it is the best-selling scientific-programmable in the world! Special version with Italian mask, probable prototype.
Property Marie Collas
Model: TI-574-FK
Battery: AG5
WBand: black rubber
WCase: black plastic
Manual: no
Year: 1981
Price: $ 35.00
Info: Time is the key to many fitness activies, and the TI-574 chronograph watch helps you monito any kind of exercise. Feature: hours, minutes, seconds,month, date and day of week, plus chronograph with lap.timer. / code ok
Model: TI-576-11
Battery: 392
WBand: black rubber
WCase: black plastic
Manual: no
Year: 1981
Price: $ 30.00
Info: LCD digital alarm watch with eight functions in 3 continuos display mode. Built in 40 year calendar automatically compensates for leap year. Incandescent backlight / code ok
Model: TI-58
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1977
Chip: TMC0501E TMC0582 TMC0583 TMC0571 2x TMC0598
Info: TI-58 / 59 programmable
Model: TI-58 C
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1982
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: TI-58 / 59 programmable
TI-58/59 Programming Guide
Introduction
The TI-58, TI-58C and TI-59 Programmable Calculator will store a sequence of instructions and execute them accordingly. In this way, the TI-58/59 is a bona fide computing devide. It will store values, perform conditional branching, and do many other things that conventional computers do. The programming language that the TI-58/59 uses is essentially the keys on the calculator itself. Each is stored as a separate instruction. As TI-58/59 programs unfold, they bear a striking resemblance to assembly language programs.
-
How to Program
When in calculator mode, the TI-58/59 functions just like an ordinary calculator. It is in the Learn mode that instructions are stored. Press the LRN key to enter the learn mode. Note that the display changes. There are 3 zeroes, a space, and then 2 zeroes:
|
000 |
00 |
The first set of zeroes is the step number. Since programs are comprised of a series of steps, the sequence is vital. The step number keeps track of this.
The second set of zeroes indicates the code of the instruction at that sequence. As previously stated, the programming language of the TI-58/59 is simply the calculator keys available. Each key is given a numeric code. Note that the keypad is 5 keys across, and 9 keys down. This makes it possible to identify each key with a 2-digit number, or "instruction code." For example, the square root key would be represented by the instruction code 34, because it is in the 3rd row down, and the 4th key across.
Note also that the TI-58/59 assigns multiple functions to the same key. Utilizing the 2nd key will perform a different function. For example, pressing the 2nd key and then the square root key will effect the cos function. In this case, a similar instruction code is generated, but it is 5 + the number of keys across. For example the instruction code for the cos key is 39.
-
Entering a Program
Let's enter a simple program. We'll create a program that multiplies a value by 2. Turn on the calculator, press the LRN key, and press the multiplication key, the two key, and the equals key. Each time you press a key, note that the sequence number increments. This is because you're adding instruction sequences each time you press a key.
You can step through a program using the SST and BST keys, which are single step and back step respectively. Press BST and the sequence number will move back to 002. Note that the instruction code is 95. This makes sense because the equals key is on the 9th row and 5th column of the key pad. Pressing BST and SST will back step and single step all the way through the program.
Consider our program in this representation:
|
000 |
65 |
x |
|
001 |
02 |
2 |
|
002 |
95 |
= |
Note a couple of things. First of all, the first instruction has the sequence 000. Might as well ge used to counting from zero right away. Zero is a number. Although it has a numerical value of nothing, it is a valid identifier. The first instruction has the sequence 000. Note also that the instruction code for the digit 2 is not what you'd expect. Normally it would be 83, for the 8th row and 3rd column. But instead it's represented as 02. I don't know why. Since the first row on the keypad is considered row 1, anything beginning with 0 can be considered to be a digit. Since each digit is stored separately, all ten digits can be represented in this way.
-
Flow Control
There are a couple of other keys you must understand before being able to execute a program. One is the RST key. This stands for reset, and it puts the sequence pointer back to 000. Try it.
Press SST or BST until you're on sequence 002. Press the LRN key to get out of learn mode.
Press LRN again to get back into learn mode. Note that you're still on sequence 002. Press LRN again to get out of learn mode. Now press the RST key. Press the LRN key again to get back into learn mode. Notice that the sequence pointer is no longer on step 002, but that it has been "reset" back to step 000. Generally after you input a program you're going to want to reset the sequence pointer back to the beginning before execution.
The other important key is the R/S key. This stands for "Run/Stop". Pressing this will cause the program to begin or stop execution.
-
Executing the Program
To execute a program you must be out of learn mode. If you are in learn mode, press the LRN key to get back into calculator mode. Press the RST key to ensure that the sequence pointer is back at the beginning of the program. Our program is designed to muliply a number by two. Let's start small. Press the 6 key. With the number 6 in the display, this is the number that will be operated upon by our program when execution starts. It's no different than if we started manually pressing they keys that comprise our program. It's just that the TI-58/59 will execute these nstructions automatically for us.
Press the R/S key to begin executing the program. Note that the calculator seems to go off into never-never land. If you let it run long enough the number 0 will begin to flash in the display. Press the LRN key to enter learn mode. Note that you're at sequence 239 or 479. This is the maximum number of steps available to the TI-58/59 programmable calculator.
What went wrong? Well if you look closely at the program, you'll note that we never told execution to stop. The calculator will dutifully execute our instructions of multiplying by two, but then it continues executing null instructions until it runs out of sequence numbers.
The solution is to use the R/S as an actual programming instruction. This will cause execution to stop when the instruction is encountered. To do this, get out of learn mode and press RST to reset the sequence pointer. Get back into learn mode, and you'll see that the sequence pointer is back on 000. Press SST until we're on sequence 003. Note that this is an unused sequence number because the instruction code is 00. Now simply press the R/S key. This will set nsctruction 003 to be the run/stop function.
Our program now looks like this:
|
000 |
65 |
x |
|
001 |
02 |
2 |
|
002 |
95 |
= |
|
003 |
91 |
R/S |
Let's try it again. Get out of learn mode and reset the instruction pointer. Enter the digit 6 into the display, and press R/S. Look at that! The TI-58/59 has multiplied our number by 2 and stopped execution. Great! Now lets try it again. Press CLR to clear the display, and then enter a number of your own choosing. Press the R/S key.
What happened? It went off into never-never land again. Why? The problem is that the TI-58/59 stopped execution at sequence 003 where we had our R/S instruction. The next time we initiated execution, it picked right up at sequence 004. This, like the first time, caused it to fly through a whole lot of null instructions until it ran out of sequences.
How do we account for this behavior? The solution is simple. The RST key, like the R/S key, can be entered as an executable instruction. Press the CLR key to get the display to stop blinking. Press the RST key to reset the sequence pointer. Press LRN to get into learn mode. Press SST until you're at sequence 004. Now press the RST key to assign the reset function to sequence 004.
Our program now looks like this:
|
000 |
65 |
x |
|
001 |
02 |
2 |
|
002 |
95 |
= |
|
003 |
91 |
R/S |
|
004 |
81 |
RST |
Get back out of learn mode and reset the sequence pointer. New lets try it again. Enter 6 and press R/S. Like before it will multiply 6 by 2. Now enter a number of your own choosing and press R/S again. This time it works. The second time you press R/S, it will continue on and execute instruction sequence 004. But new sequence 004 tells the instruction pointer to go back to 000. This will begin execution of the program from the beginning, which will multiply the display value by 2 and stop execution.
with permission of the author www.datamath.org
Model: TI-584-11
Battery: 392
WBand: black rubber
WCase: black plastic
Manual: no
Year: 1981
Price: $ 35.00
Info: Men's chronograph with two time zoneand 24-hour alarm.Displays hours , minutes,seconds,month,date, day of week,am/pm,alternate time zone, alarm and stopwatch-for added convenience, the 584-11 has 5 minute snoze alarm. / code ok
Model: TI-584A-11
Battery: LR41
WBand: black rubber
WCase: black plastic
Manual: no
Year: 1981
Price: $ 35.00
Info: Men's chronograph with two time zoneand 24-hour alarm.Displays hours , minutes,seconds,month,date, day of week,am/pm,alternate time zone, alarm and stopwatch-for added convenience, the 584-11 has 5 minute snoze alarm. / code ok
Model: TI-59
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1980
Chip: TMC0501E TMC0582 TMC0583 TMC0571 TMC0594 4x TMC0598
Info: TI-58 / 59 programmable


TI-58 or TI-59 calculator this rare Marine Navigation version uses a specialized module with navigation related programs. The calculator was mounted in a expensive wooden box and equipped with a DC-converter for usage on a boat.
The TI-58 and TI-59 calculators introduced a novelty, the Solid State Software Modules™ with up to 5000 program steps. On the backside of the TI-58/59 you'll note a small lid with a place for a module. The Master Library, known as "Module -1-", with 25 different programs was included with the TI-58, TI-58C, and TI-59. Twelve additional Solid State Software Modules™, known as "Module -2- to -13-" were available from Texas Instruments as Standard Modules.
| 1 | Master Libray | TMC0541 |
| 2 | Applied Statistics | TMC0542 |
| 3 | Real Estate Investment | TMC0543 |
| 4 | Surveying | TMC0544 |
| 5 | Marine Navigation | TMC0545 |
| 6 | Aviation | TMC0546 |
| 7 | Leisure Library | TMC0547 |
| 8 | Security Analysies | TMC0548 |
| 9 | Business Decision | TMC0549 |
| 10 | Math Utilities | TMC0550 |
| 11 | Electrical Engineering | TMC0551 |
| 12 | Agriculture | TMC0554 |
| 12 | Surveying ITALY | ??? |
| 13 | Structural Engineerign | TMC0553 |
| 13 | RPN Simulator | TMC0555 |
| 16 | Loran C Navigation | TMC0540 |
Card reader with replacement of the licorice wheel... As promised the photos. I used the 7 mm external and 3 mm internal tube, in some cases I had to use the 6 mm one (SR series), since you disassemble everything, clean all the gears and then use a lithium grease (little I recommend). Since you have to disassemble everything, clean the magnetic head with isopropyl alcohol.
Model: TI-59 ALLIANZ
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1979
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: made in Holland
Model: TI-59 Chrysler Credicavia
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: made in Holland
Model: TI-59 Creg insurance FR
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info:The innovative TI-59 was the perfect base for a lot of customized calculators. This one was used end of the 70th by insurance agents of the French CREG company.
Model: TI-59 EDF FR
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: The innovative TI-59 was the perfect base for a lot of customized calculators. This one was used end of the 70th by the EDF Group in France - a leading supplier of Electricity in Europe - to calculate the necessary energy to heat rooms and houses
Model: TI-59 IMCO mudmod
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: The IMCO "MudMod" application was developed in 1982 by IMCO Services, a division of Halliburton Co., Houston for internal use only. IMCO's first module ("DrilMod") with applications in the areas of well control, annular and bit hydraulics, directional design, d-exponents, cost/ft, and drilling mud, a total of 16 programs in all, and second module (“BossMod”) for well-control operations were sold to customers.
Model: TI-59 LLOYD
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: TI-58 / 59 programmable
Model: TI-59 LVM insurance
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: The innovative TI-59 was the perfect base for a lot of customized calculators. This one was used end of the 70th by insurance agents of the German LVM company.
Model: TI-59 SCOT WARE CL 4
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: Scot Ware by Scotch Programs Inc., headquartered in Miami, Florida, introduced already in April 1978 with the CL4 cooling load calculation an early application programmed in a customized Solid State Software Module. Purchased but never arrived!!
Model: TI-59 WG&L Tax Planner
Battery: BP1 A
Adapter: AC9131
Year: 1981
Chip: TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047
Info: The tax planner application was developed in 1982 by Warren, Gorham & Lamont, Valhalla NY (WG&L) and programmed by Texas Instruments into a Solid State Software Module. Please notice the © 1983, 1984 date of the module. These modules were probably changed every year due to updates in the tax calculation process and WG&L introduced in 1985 with the incotax calculator a more flexible approach.
Model: TI-601-01 Code: ok
Battery: 2 x AG-3
WCase: black plastic WBand: rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-02 Code: ok
Battery: 2 x AG-3
WCase: white plastic WBand: rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-03 Code: ok
Battery: 2 x AG-3
WCase: red plastic WBand: rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-04 Code: ok
Battery: 2 x AG-3
WCase: yellow plastic WBand: rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-05 Code: ok
Battery: 2 x AG-3
WCase: dark blue plasticWBand: rubber matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-06 Code: ok
Battery: 2 x AG-3
WCase: cyan plastic WBand: rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: ebay with code TI-601-01
Model: TI-601-10 Code: ok
Battery: 2 x AG-3
WCase: white plastic WBand: flowers rubber matching bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-20 Code: my
Battery: 2 x AG-3
WCase: black plastic WBand: rubber matching bracelet Face: red / gold frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-601-21 Code: my
Battery: 2 x AG-3
WCase: brown plastic WBand: leather brown bracelet Face: red / silver frame
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-625-02 Code: ok / ebay
Battery: 399 or AG53
WCase: gold tone metal WBand: leather bracelet Face: brown frame
Manual: Yes Box: No Light: Tritium
Year: 1978 Price: $ 11.03
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: the same model with bracelet in white tone metal TI-451-01
Model: TI-626-01 Code: ok
Battery: 2 x AG-3 Module: 54B-2
WCase: cream/brown plastic WBand: cream/ brown rubber matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: Rare
Model: TI-626-02 Code: ok
Battery: 2 x AG-3
WCase: blackflowers/white plastic WBand: rubber flowers/white matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-627-01 (Stars Wars child) Code: Ok
Battery: 2 x AG-3
WCase: black plastic WBand: black rubber Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: The excitement of Star Wars, only Texas Instruments has the official Star Wars digital watches ,combining five-functions.
Model: TI-65
Battery: 2 x LR44
Adapter:
Year: 1988
Chip: CD4805 , CD4806
Info:The TI-65 Technical Analyst is a quite interesting calculator within the Galaxy-line.
Model: TI-651-01
Battery: 391
WBand: light brown leather
WCase: brown plastic
Manual: no
Year:
Info: TI-651-10 economy model without backlight otherwise identical /code OK
Model: TI-651-02
Battery: 391
WBand: light brown letaher
WCase: cream plastic
Manual: no
Year:
Info: TI-651-20 economy model without backlight otherwise identical / code ok
Model: TI-651-03
Battery: 391
WBand: light brown leather
WCase: black plastic
Manual: no
Year:
Info: TI-651-30 economy model without backlight otherwise identical / code ok
Model: TI-651-04
Battery: 391
WBand: white leather
WCase: white plastic
Manual: no
Year:
Info: TI-651-40 economy model without backlight otherwise identical / code ok
Model: TI-656-10
Battery: 362
WBand:Black leather
WCase: Black plastic / face silver
Manual: Box / Instr. / Manual
Year: 1979
Price: $ 24.95
Info: code ok
Model: TI-656-15 black
Battery: 362
WBand: black plastic
WCase: black plastic / face silver
Manual: Box / Instr. / Manual
Year: 1979
Price: $ 24.95
Info: code ok
Model: TI-656-15 white
Battery: 362
WBand: White plastic
WCase: White plastic / face gold
Manual: Box / Instr. / Manual
Year: 1979
Price: $ 5.95
Info: code ok
Model: TI-656-30 Code: ok
Battery: AG11 or LR726 Module:
WCase: white tone metal WBand: matching bracelet Face: LCD / blu frame
Manual: yes Box: No Light: no
Year: ?Price: ? $
Function: Constant display of hours and minutes; pressing the top right button displays the month and day; pressing again displays the seconds. Pressing the bottom right button sets the time and date.
Info: the same model in gold tone metal TI-656-40
Model: TI-656-40 Code: ok
Battery: AG11 or LR726 Module:
WCase: gold tone metal WBand: matching bracelet Face: LCD / blu frame
Manual: yes Box: No Light: no
Year: ?Price: ? $
Function: CConstant display of hours and minutes; pressing the top right button displays the month and day; pressing again displays the seconds. Pressing the bottom right button sets the time and date.
Info: the same model in white tone metal TI-656-30

Model: TI-68 prototype
Battery: CR2032
Adapter:
Year: 1985
Chip: CPU: Toshiba T9948A
Info:Calculator donated by Massa Gennaro in 2023 during the 2nd edition "the story with Texas Instruments" in Rieti, (World Chili Pepper Fair). This was a prototype with transparent case, built in the Rieti factory.
Model: TI-70 Code: ok
Battery: no Power Supply: 110 vac
Manual: yes Box: no Light: led
Year: 1974 Chips: TMS3834, SN75492, RCA CA3082 Display: TIL370
Function: The two-function shows constant display of hours, minutes.
Info: While the TI-71 sports an alarm function
Model: TI-701 graffiti
Battery: solar
Adapter: no
Year: 1989
Chip:
Info: All models share the same design idea of a round "light tube" to collect ambient light and transport it to the high-efficiency solar cells, in the same line you can find the TI-703 blue ocean the TI-702 city night . Made in Taiwan
Special thanks go to Mrs. Pina Battinelli, who donated this calculator.
Dear Sirs, it is with great pleasure and considerable emotion that I entrust to your organization the "companion" of my initial schooling. Thank you and good luck.
Un particolare ringraziamento va alla Signora Pina Battinelli che ha donato questa calcolatrice. Scrivendo:
Gentilissimi, con grande piacere e non poca emozione affido alla vostra associazione la "compagna" del mio iniziale percosrso scolastico. Grazie e in bocca al lupo
Model: TI-701-01 Code: ok
Battery: 2 x AG-3
WCase: white tone metal WBand: black leather bracelet Face: red
Manual: Yes Box: Yes Light: led
Year: 1978 Price: $ 11.95
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: U.S. watch retail price list
Model: TI-701-02 Code: ok
Battery: 2 x AG-12
WCase: gold tone metal WBand: brown leather bracelet Face: red
Manual: Yes Box: Yes Light: led
Year: 1978 Price: $ 12.95
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:U.S. watch retail price list
Model: TI-701-04 Code: ok
Battery: 2 x AG-3
WCase: gold tone metal WBand: matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-701-05 Code: ok
Battery: 2 x AG-3
WCase: white tone metal WBand: snake chain bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1978 Price: $ 17.01
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: U.S. watch retail price list
Mode
l: TI-701-06 Code: ok
Battery: 2 x AG-3
WCase: gold tone metal WBand: snake chain bracelet Face: red
Manual: Yes Box: Yes Light: led
Year: 1978 Price: $ 17.01
Function: The watch has five functions- hours, minutes, seconds, month and date
Info: U.S. watch retail price list
Model: TI-701-08 Code: ok
Battery: 2 x AG-3
WCase: gold tone metal WBand: matching bracelet Face: red
Manual: Yes Box: Yes Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-702 city night
Battery: solar
Adapter: no
Year: 1989
Chip:
Info:All models share the same design idea of a round "light tube" to collect ambient light and transport it to the high-efficiency solar cells, in the same line you can find the TI-701 graffiti the TI-703 blue ocean . Made in Taiwan
Model: TI-703 blue ocean
Battery: solar
Adapter: no
Year: 1989
Chip:
Info:All models share the same design idea of a round "light tube" to collect ambient light and transport it to the high-efficiency solar cells, in the same line you can find the TI-701 graffiti the TI-702 city night . Made in Taiwan
Model: TI-705-01 Code: ok
Battery: 2 x AG-3
WCase: gold tone metal WBand: pendant matching bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-706-02 Code: ok
Battery: 2 x AG-3
WCase: square gold tone metal WBand: leather bracelet Face: red
Manual: Yes Box: No Light: led
Year: 1977 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date
Info:
Model: TI-71 Code: ok
Battery: no Power Supply: 110 vac
Manual: yes with permission www.datamath.orgBox: no Light: led
Year: 1974 Chips: TMS3834, SN75492, RCA CA3082 Display: TIL370
Function: The three-function shows constant display of hours, minutes and alarm.
Info: While the TI-70 sports an alarm function

Model: TI-74 basicalc
Battery: 4 x AAA
AC adapter:
Year: 1987
Chip: Printer: PC-324
Info: The ti-74 was produced in two models with the Basic on board called TI-74 basicalc and TI-74 S(special) where it used a preprogrammed module, intended for insurance, banks, etc ..
Model: TI-741-01
Battery: AG8 or 391
WBand: Black Plastic Strap
WCase: White Lite
Manual:
Year: 1981
Info: code ok
Model: TI-741-04
Battery: AG8 or 391
WBand: silver Strap
WCase: silver iron
Manual: NO
Year: 1981
Info: code ok
Model: TI-742-20
Battery: AG8 or 391
WBand: Brown Strap
WCase: Brown Plastic
Manual:
Year: 1981
Info: code ok
Model: TI-742-30
Battery: AG8 or 391
WBand: Navy Blue Strap
WCase: Navy Blue plastic
Manual: NO
Year: 1981
Info: code ok
Model: TI-742-40
Battery: AG8 or 391
WBand: silver Strap
WCase: silver iron
Manual: NO
Year: 1981
Info: code ok
Model: TI-74 S
Battery: 4 x AAA
AC adapter:
Year: 1987
Chip: Printer: PC-324
Info: The ti-74 was produced in two models with the Basic on board called TI-74 basicalc and TI-74 S (special) where it used a preprogrammed module, intended for insurance, banks, etc ..
Model: TI-751-01
Battery: 391
WBand: black plastic
WCase: steel / black face
Manual: NO
Year:
Info: code ok
Model: TI-751-03
Battery: AG8 or 391
WBand: white leather
WCase: steel gold
Manual: NO
Year:
Info: code ok
Model: TI-80
Battery: 2 x CR2032
Adapter:
Year: 1996
Chip: CPU: Toshiba T6M53A ROM: LH5359©1995 RAM: SRM2264 Display: Toshiba T6B79
Info: Taiwan
Audio Guide
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Model: TI-563-11 (TI-800) Code: ok
Battery: AG3 or 392
WCase: black plastic WBand: rubber matching bracelet Face: black frame with push red and green
Manual: Yes Box: No Light: no
Year: 1987 Price: xxxx
Function: The watch has five functions- hours, minutes, seconds, month and date, with light.
Info: Fantastic Find !!! Extremely rare !!!
Fantastic find!!! Extremely rare watch, we've seen two in recent years, the first on a German blog, and the second we found ourselves!!! My friend Fabrizio ( Nemesi Service ) and I joked about it a lot, because he was one of the very few lucky people to have one in the '80s.
In the last photo, you can see the words "assembled in Italy."
Model: TI-801-01
Battery: 397
WBand: Matching bracelet
WCase: White metal
Manual:
Year: 1981 / 90 $
Info: Twenty-four hour chronograph with constant backlight, month/date reversal, military time (24-hour display) and adjustable bracelet / code ok
Model: TI-801-02
Battery: AG8
WBand: matching bracelet
WCase: Golden tone metal
Manual:
Year: 1981 / 110 $
Info:Twenty-four hour chronograph with constant backlight, month/date reversal, military time (24-hour display) and adjustable bracelet / code ok
Model: TI-801-21
Battery: 2 x AG3
WBand: steel gold
WCase: steel gold
Manual:
Year:
Info: the same model in steel
Model: TI-801-31
Battery: 2 x AG3
WBand: steel
WCase: steel
Manual:
Year:
Info: Blue box / code ok but in the advertising the code is TI-473-31
Model: TI-8011 Code: from magazine
Battery: LR1120
WBand: steel
WCase: steel
Manual: yes
Year: 1979 Price: $ 89
Info: The same in steel gold tone
Model: TI-8012 Code: from magazine
Battery: LR1120
WBand: gold tone
WCase: match bracelet
Manual: yes
Year: 1979 Price: $ 89
Info: the smae in steel
Model: TI-803-41
Battery: AG3 or 392
WBand: steel gold
WCase: steel gold
Manual: yes
Year: 1979
Info: own box / code ok
Model: TI-804-31
Battery: AG8
WBand: Matching bracelet
WCase: White metal
Manual: yes
Year: 1981 / 50 $
Info: Quartz chronograph with 24-hour alarm, 12-hour chronograph, alarm on/off display, incandescent backlight, adjustable bracelet / code ok.
Model: TI-804-41
Battery: AG5
WBand: Matching bracelet
WCase: Golden tone metal
Manual: yes
Year: 1981 / 60 $
Info: Quartz chronograph with 24-hour alarm, 12-hour chronograph, alarm on/off display, incandescent backlight, adjustable bracelet / code ok.
Model: TI-806-31 Code: from magazine
Battery: 344
WBand: Matching bracelet
WCase: White metal
Manual: yes
Year: 1979 Price: $ 38
Info: code ok. The module inside is Lambda Electronics
Model: TI-806-41 Code: from magazine
Battery: LR1130
WBand: Matching bracelet
WCase: Golden tone metal
Manual: yes
Year: 1979 Price: $ 38
Info:code ok. The module inside is Lambda Electronics
Model: TI-8071 Code: from magazine
Battery: 2 x LR721
WBand: steel
WCase: steel
Manual: NO
Year: 1979 Price: $ 89
Info: Solar
Model: TI-8072 Code: from magazine
Battery: 2 x LR721
WBand: steel gold
WCase: steel gold
Manual: NO
Year: 1979 Price: $ 89
Info: Solar
Model: TI-808-31
Battery: SR41
WBand: Matching bracelet
WCase: White metal
Manual:
Year: 1981 / 70 $
Info:Eleven-function wrist instrument shows constant display of hours, minutes, seconds, date and day of week, contdown/timer and chronograph with 1/100th second accuracy. Backlight / code ok. (? TI-8531-08)
Model: TI-808-41
Battery: SR41
WBand: Matching bracelet
WCase: Golden tone metal
Manual:
Year: 1981 / 80 $
Info: Eleven-function wrist instrument shows constant display of hours, minutes, seconds, date and day of week, contdown/timer and chronograph with 1/100th second accuracy. Backlight / code ok.
Model: TI-809-31 Code: OK
Battery: LR1120 / 391 Module: 108
WCase:white tone metal WBand: matching bracelet Face:
Manual: No Box: No Light: bulb
Year: 1981 Price: 80 $
Function: One setting will program the wrist instruments alarm to sound only on selected days of the week. The nine-function alarm chronograph shows constant display of hours, minutes,seconds, month, date and day of week. Also includes chronograph with 1/100th second accuracy, countdown/timer, hourly chime and backlight
Info:the same model in gold tone metal TI-809-41
Model: TI-809-41 Code: OK
Battery: LR1120 / 391 Module: 108
WCase: golden tone metal WBand: matching bracelet Face:
Manual: Yes Box: Yes Light: bulb
Year: 1981 Price: 90 $
Function: One setting will program the wrist instruments alarm to sound only on selected days of the week. The nine-function alarm chronograph shows constant display of hours, minutes,seconds, month, date and day of week. Also includes chronograph with 1/100th second accuracy, countdown/timer, hourly chime and backlight
Info:the same model in white tone metal TI-809-31
Model: TI-810-21 Code: ok
Battery: 391 Module: M150
WCase: black plastic WBand: black rubber Face: gray frame with white write
Manual: Yes Box: No Light: Yes
Year: 1981 Price: $
Function:
Info: The same model in gold tone TI-810-33
Model: TI-810-31
Battery: LR1120
WBand: steel gold
WCase: Steel gold
Manual: yes
Year:
Info: code ok. Calculator with button CAL BLUE
Model: TI-810-32
Battery: LR1120
WBand: steel gold
WCase: Steel gold
Manual: NO
Year:
Info: Calculator with button CAL ORANGE
Model: TI-82 1995
Battery: 4 AAA + CR1620
Adapter:
Year: 1995
Chip: CPU: Toshiba T84C00A ASIC: Toshiba TC14L010 ROM: MX J9533©1995 RAM: SRM20256 Display: Toshiba T6A04
Info: GRAPHING
Model: TI-82 parcus
Battery: 4 AAA + CR1620
Adapter:
Year: 1994
Chip: TCPU: Toshiba T6C79 ROM: TA1782©2000 RAM: HY62WT081 Display: Toshiba T6A04A84C00
Info:
Model: TI-83
Battery: 4 AAA + CR1620
Adapter:
Year: 1996
Chip: T6C79 toshiba
Info:From a users point of view the TI-83 is compatible with the TI-82 but added some financial functions and the "official" support of assembly programming. A smart decision, the TI-83 developed itself as a popular programming platform and prepared the tremendous success of the TI-83 Plus.
Model: TI-83 plus
Battery: 4 AAA + CR1620
Adapter:
Year: 1999
Chip: CPU: Zilog Z84C0008 ASIC: TI REF 9815455 Flash: AM29F400 RAM: SRM2B256 Display: Toshiba T6A04
Info:The TI-83 Plus added Flash technology to the TI-83 Graphing calculator. This technology gives you the flexibility to add calculator software applications and additional functionality beyond math and science, providing long-term value.
Model: TI-831-31 Code: ok
Battery: CR2320
WCase: white tone metal WBand: matching bracelet Face: blue
Manual: no Box: no Light: no
Year: 1981 Price: $ 70.00
Function: Quartzhe analogLCD hands show hour, minute, sweep seconds indicator, day of week and date. Backligth.
Info: the same model in gold tone metal TI-831-41
Model: TI-831-41 Code: ok
Battery: CR2320
WCase: gold tone metal WBand: matching bracelet Face: brpwn
Manual: no Box: no Light: bulb
Year: 1981 Price: $ 80.00
Function: Quartzhe analogLCD hands show hour, minute, sweep seconds indicator, day of week and date. Backligth.
Info: the same model in white tone metal TI-831-31
Model: TI-84 plus
Battery: 4*AAA + SR44
Adapter:
Year: 2004
Chip: ASIC: TI REF 83PLUSB/TA2 or TI REF 84PLUSB/TA3 Flash: 29LV800 Display: Toshiba T6K04
Info:The TI-84 Plus doubles the capacity of the Flash ROM of the original TI-83 Plus to 480k Bytes. Other enhancements include a high contrast LCD, an integrated USB port for computer connectivity, an internal clock, and an available kickstand. The clock speed of the Z80 compatible microprocessor raised to 15 MHz compared to the 6 MHz of the earlier TI-83 products
Model: TI-851-01 Code: my
Battery: CR2032
WCase: white tone metal WBand: matching bracelet Face: gold
Manual: no Box: no Light no
Year: 1977Price: $ 174.00
Function: The seven-function shows constant display Hours & Minutes, Minutes : Seconds, Day / Date ... 2, Alternate Time Zone.
Info: the same model in gold tone metal TI-851-02
Model: TI-851-01 round Code: my
Battery: CR2032
WCase: white tone metal WBand: matching bracelet Face: black
Manual: no Box: no Light: no
Year: xxxx Price: xxxx
Function: The seven-function shows constant display Hours & Minutes, Minutes : Seconds, Day / Date ... 2, Alternate Time Zone.
Info: the same model in gold tone metal TI-851-02 round
Model: TI-851-02 Code: ok
Battery: CR2032
WCase: 10 micron gold plated tone metal WBand: matching bracelet Face: black
Manual: no Box: no Light: no
Year: 1977Price: $ 184.00
Function: The seven-function shows constant display Hours & Minutes, Minutes : Seconds, Day / Date ... 2, Alternate Time Zone.
Info: the same model in white tone metal TI-851-01
Model: TI-851-02 Code: ok
Battery: CR2032
WCase: gold tone metal WBand: black leather Face: black
Manual: no Box: no Light: no
Year: xxxx Price: xxxx
Function: The seven-function shows constant display Hours & Minutes, Minutes : Seconds, Day / Date ... 2, Alternate Time Zone.
Info: the same model in white tone metal TI-851-01 round
Model: TI-88 (PVT4)
Battery: BP88 (1*AA-NiCd)
Adapter: AC9133
Year: 1982
Chip: TP0485 (CD2901), TP0485 (CD2902), 2*TP0530, 2*TP0531, TP0532 (CD5402), SN77203
Info: We wrote May 1982 when Texas Instruments printed the sales brochures of the TI-88 on glossy paper. The brochures promised the introduction of the TI-58C/TI-59 successor for Forth Quarter 1982 in a package matching the TI-55-II line - before we got word of the TI-66. Today we know more: The development of the TI-88 was finalized, the manuals printed, the first pre-production calculators worked perfectly and Texas Instruments canceled the whole project! Maybe one of the reasons was the introduction of the powerful Hewlett-Packard HP-41C calculator or the innovative Sharp PC-1211 Pocket Computer. Or the underestimated complexity of the TI-88 design. Or electrostatic discharge (ESD) issues of the Module contacts. Or the internal competition with the CC 40 Compact Computer. Or the keyboard problems encountered with the TI-55-II family of calculators. Or the decision of a Manager of TI's Consumer Electronic group to quit the calculator business...
Learn more about the demanding "Project X" initiated already in Summer 1977 and leading not only to the (failed) TI Programmable 88, but the TI-66 PROGRAMMABLE, failed TI-76 PROGRAMMABLE, Compact Computer CC 40, (failed Compact Computer CC 70) and last but not least the successful TI-74 BASICALC and TI-95 PROCALC.
with permission of the author DATAMATH.org
The PC-800 Printer is a dot-matrix thermal printer designed for use with the TI-88 Programmable. It connects to the TI-88 through a 2-pin Peripheral I/O connector. A second Peripheral I/O connector on the back of the PC-800 allows to connect another device like the CA-800 Cassette Interface to the TI-88.
Model: TI-89 Voyage 200
Battery: 4 x AAA + CR1616
AC adapter:
Year: 2002
Chip: CPU: MC68SEC000 ASIC: TI REF 200C040 Flash: LH28F320 RAM: 2* CY62128 Display: 3*T6B07, 2*T6B08
Info:
Model: TI-92-plus
Battery: 4 x AA + CR2032
Adapter:
Year: 1996
Chip: CPU: MC68SEC000 ASIC: TI REF 200C040 Flash: LH28F160 RAM: 2*SRM20V100 Display: 3*T6B07, 2*T6B08C414181
Info: first SYMBOLIC
The commercial life of the TI-99/4 was however short with the announcement of its replacement with the 99 / 4A which would then be presented at the "Consumer Electronics Show", on June 30, 1981.
In order not to disappoint its customers, Texas Instruments offered to replace the old computer / 4 with the new Texas Instruments TI-99 / 4A totally free of charge but on the condition that the purchase of the / 4 had been at least 6 months before. of the release of the new model, only the shipping costs were charged to the customer.
The company T.I. tried to market the Texas Instruments TI-99/4 also in Italy and France, but due to delays, its distribution was immediately interrupted to make way for the / 4A already present in the US market. In any case, in Europe the 99/4 found no interest in the market also precisely because of the monitor alley which had a US NTSC standard and therefore problematic for European standards. Texas Instruments, strangely, never officially announced the discontinuation of the TI-99/4. In total, around 25,000 units were produced.
TI-99/4 with inernal Speaker. In the end we also managed to get a nice TI-99/4 with internal speaker and volume control. In this photo a 32Kbyte memory expansion and an RS232 interface complete the set.
Here are the original manuals and the masks to use for playing or teaching.

A detail from the inside, the PCB with an operational amplifier, used to drive the internal speaker via the volume slider potentiometer, which is located on the bottom of the TI-99/4.
Compared to all the others, this version has a very important peculiarity to keep in mind: the power supply that provides the three voltages (+12vdc, +5vdc and -5vdc) is not located inside the computer but outside in a plastic box as shown in the photo.
It is important to note that the 4-pin connector has a different sized pin than the other 3 pins.
Home Computer TI-99/4A
Audio Guide
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Home Computer TI-99/4A Enhanced version of the TI-99/4 model marketed at the end of 1979, it was placed on the market starting from June 1981, had a certain diffusion especially in the USA but due to the commercial war with Commodore International it was unable to achieve a significant number of sales, especially due to the success of the Commodore 64, and production ceased just two years after launch. It supports lowercase writing, unlike some machines of the time which required specific expansion, and a full-travel keyboard, and is based on the TMS-9900, a 16-bit CPU clocked at 3 MHz. The graphics are 16 colors with a video resolution of 256 x 192 pixels, organized in 32 columns x 24 rows, with characters (ASCII or user definable) based on 8 x 8 pixels.
Built around a single block, which contains the CPU, the motherboard and the cartridge slot (SSC Solid State Cartridge), it also had a 5.25" floppy disk drive, a serial card, among other options. RS-232 equipped with two serial ports and one parallel, a P-Code card for supporting the Pascal programming language, a thermal printer, an acoustic coupler, tape drives for saving and loading data (on normal cassettes), a pair of joysticks and a 32 kB memory expansion. The peculiarity of the machine was that it was sold already equipped with a monitor (a modified version of a 13" Zenith Color TV), as the RF adapter for connection to a normal TV it never obtained certification from the Federal Communications Commission. In Italy it was sold without a monitor and the video output was fully compatible with normal televisions. Another peculiarity for the time was the presence of an optional speech synthesizer, exactly like the one present in the Atari 2600, which allowed the software or games to be equipped with speech synthesis. The synthesizer was provided free of charge to customers after the purchase of a certain number of cartridges, and was widely used in several video games written by TI itself.
TI99-4A Main BOARD
Released:June 1981 Price: US$525 (without monitor) How many:2.8 Million
CPU:TI TMS9900, 3MHz Memory:16K RAM, 26K ROM Sound: 3: channels + effect Joystick: 2
Display:Video via an RF modulator 32 characters by 24 lines text 192 X 256, 16 color graphics
Ports:ROM cartridge (on front) Data storage cassette Audio/Video output Joystick input CPU bus expansion
Peripherals:Speech Synthesizer Peripheral Expansion Box Data storage cassette 300 baud modem
OS:ROM BASIC
| 1 | TMS9900 CPU central process unit |
| 2 | TMS9918A VDP video display processor |
| 3 | TMS9901 HW Interface |
| 4 | Grom Chips CD2155/CD2156/CD2157 |
| 5 | TMS9919/SN94624 Sound Chips |
| 6 | 8 x TMS4116 RAM Chips |
| 7 | TMS9904 Clock Generator |
| 8 | 2 x 4k ROM chips (1501392-26) |
| 9 | 2 x 128 byte MCM6810P Scratch-pad RAM |
| 10 | Command Module Connector ( cartridges ) |
| 11 | Cassette Port |
| 12 | Video Port |
| 13 | Joystick Port |
| 14 | Keyboard Connector |
| 15 | Expansion Port |
In August of 1983 TI released the TI-99/4A QI. Though this name was not official for the console, it was what the motherboard was designated. QI stood for Quality Improved. No visual changes were made to the exterior of the console, and in fact they are very hard to distinguish from the beige models. On the other hand, major changes were made to the internal components of the QI. We will take a look at these changes a little later.
One change that was made that created major grumbling was TI's decision to change the internal workings to lockout unlicensed ROM cartridges. This was done to keep other 3rd party companies from producing cartridges for the TI-99/4A. Not all QI consoles had this "feature", and even non QI, later beige consoles may have. It is easy to determine if you have the lockout or not. Look at the first screen (the one with the color bars) when you turn on the console, if you show a copyright date of 1981 you do not have the lockout, but if it shows a copyright date of 1983 then you do.
The TI-99/4 and TI-99/4A are home computers released by Texas Instruments in 1979 and 1981, respectively. Based on the Texas Instruments TMS9900 microprocessor originally used in minicomputers, the TI-99/4 was the first 16-bit home computer, and the associated video display controller provided color graphics and sprite support that was among the best of its era.
The calculator-style keyboard of the TI-99/4 was cited as a weak point, and TI's reliance on ROM cartridges and their practice of limiting developer information to select third parties resulted in a lack of software for the system. The TI-99/4A was released in June 1981 to address some of these issues, featuring a simplified internal design, full-travel keyboard, improved graphics, and a unique expansion system. At half the price of the original model, sales picked up significantly and TI supported the 4A with peripherals, including a speech synthesizer and a "Peripheral Expansion System" box to contain hardware add-ons. TI released developer information and tools, but the insistence on remaining sole publisher continued to starve the platform of software.
The 1981 US launch of the TI-99/4A followed the Commodore VIC-20 by several months. Commodore's CEO Jack Tramiel had once been offended by TI's predatory pricing during the mid-1970s, and retaliated with a price war by repeatedly lowering the price of the VIC-20 and forcing TI to do the same. By 1983, the 99/4A was selling for under US$100, at a loss. Even with the increased user base created by the heavy discounts, Texas Instruments suffered a US$330 million loss in the third quarter of 1983 and announced the discontinuation of the TI-99/4A in October 1983, with production ended in March 1984.
The TI-99/4 was intended to fit in the middle of a planned range of TI-99 computers, none of which were ultimately released but prototypes and documentation have been rediscovered after the TI-99/4A was discontinued.
Model: TI-BSA-01
Battery: AG5
WBand: brown letaher
WCase: Steel
Manual: NO
Year:
Info: BSA boy scout of America
Model: TI-EZ-430 Code: ok
Battery: CR2031
WCase: black plastic WBand: rubber bracelet Face: LCD
Manual: Yes Box: No Light: no
Year: 2010 Price: xxxx
Function: The watch has many functions
Info: The eZ430-Chronos software development tool is a highly integrated, wearable, wireless development system that is based on the CC430F6137. It may be used as a reference platform for watch systems, a personal display for personal area networks, or as a wireless sensor node for remote data collection. Based on the CC430F6137 sub-1-GHz RF SoC, the eZ430-Chronos is a complete development system featuring a 96-segment LCD display, an integrated pressure sensor, and a three-axis accelerometer for motion sensitive control. The integrated wireless interface allows the eZ430-Chronos to act as a central hub for nearby wireless sensors such as pedometers and heart-rate monitors. The eZ430-Chronos offers temperature and battery voltage measurement and is complete with a USB-based CC1111 wireless interface to a PC. The eZ430-Chronos watch may be disassembled to be reprogrammed with custom applications and includes an eZ430 USB programming interface.
Model: TI-first watch Code: ok
Battery: 2 x AG-3
WCase: cyan plastic WBand: cyan leather bracelet Face: red / colored frame
Manual: Yes (user guide, how to tell time) Box: Yes Light: led
Year: 1978 Price: xxxx
Function: The watch has five functions: hours, minutes, seconds, month and day.
Info: This wonderful First Watch was introduced as a learning aid for five to seven-year-olds and teaches how to read any clock. The box included: A colorful, reliable digital watch / A Fun games and how-to book / An exclusive "Hands-on-Time" learning dial.
In 1978 Texas Instruments stated: Digital time is here to stay, but today's youngsters still need to know how to read conventional "big hand-little hand" time. Today, 30 years later, we know more - most kids wear old-style watches or use the analog clock of their sell phones.
Model: TI-Nspire cas touchpad
Battery: 4 x AAA
Adapter: USB
Year: 2010
Chip: CPU: TI-NS2007C-0 (L9B0713) SDRAM: MT48H16M16 Flash: SEC K9F5608 Display: Novatek NT7702H, 2*xxx
Info: Texas Instruments announced on March 8, 2010 the new TI-Nspire CAS Touchpad and TI-Nspire Touchpad graphing calculators. In the United States the new calculator was listed on the TI website as a complement to the TI-Nspire CAS with Clickpad while in some other countries, e.g. Germany, the calculator was introduced as successor to the previous model. The new Operating System 2.0 and some internal labels on the PCBs (printed circuit boards) of the calculator suggest indeed the switch to a "TI-Nspire 2".
Model: TI-Nspire CX
Battery: 3.7 L1230SP Li-Ion
Adapter: AC9211U
Year: 2011
Chip: CPU: ET-NS2010B-0 (T6UJ1XBG-0002) ,SDRAM and Flash MCP: Samsung K511F12ACA
Info: Texas Instruments introduced at the 2011 T3 International Conference held on February 25-27 in San Antonio, TX with the TI-Nspire CX and TI-Nspire CX CAS their first graphing calculators with full color, backlit displays.
Model: TI-Nspire CX II
Battery: 3.7 L1200SPA Li-Ion
Adapter:
Year: 2019
Chip: CPU: ET-NS2018-000 (S6M98) SDRAM Micron MT46H32M Flash-ROM: Micron MT29F1G01
Info:Texas Instruments introduced at the 2011 T3 International Conference held on February 25-27 in San Antonio, TX with the TI-Nspire CX and TI-Nspire CX CAS their first graphing calculators with full color, backlit displays.
Model: TI-xxx-087
Battery: AG5 or 393
WBand: balck leather
WCase: steel / face black
Manual:
Year: 1976
Info:
























































































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