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TI 1020 brownModel: TI-1020 brown
Battery:  2 x AA
Adapter:     
Year: 1980
Chip: Sharp LI 3009
Info: We wrote the year 1980, when Texas Instruments discovered the lower labor costs of Taiwan, R.O.C. compared to US or Europe. Till the early 80s most calculators from Texas Instruments were produced either in US or Italy and some early LCD models like the TI-1768 even in Japan. Taiwan.