Educational

• Speak and Spell line

Model: Super Speak & Spell
Battery: 4 x AA
AC adapter:
Year: 1989 
Chip:
Info: TSP50C42 (CSM42019) TSP60C18 (CMM18004)  or TSP50C10 (CSM10087) HD44780

• Speak and Spell line

Model: Super Speak and Spell 2v
Battery: 4 x 1,5 C
AC adapter:
Year: 1992
Chip:
Info: 2 version

• Databank

Model: TI-2700 mini data bank
Battery: 3 x LR43 + CR1220              
AC adapter:
Year: 1988 
Chip:Toshiba TC5518 
Info: 

• Databank

Model: TI-3100 pocket dialer
Battery: CR2025
AC adapter:
Year: 1990
Chip:
Info:

• Professional Calculator

Model: TI-74 basicalc
Battery: 4 x AAA 
AC adapter:
Year: 1987
Chip:
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 ..