Sharp PC-1211
The Sharp PC-1211 is the first pocket computer ever released, marketed by Sharp Corporation in March 1980. The computer was powered by two 4-bit computing, 4-bit CPUs laid out in power-saving CMOS circuitry. One acted as the main CPU, the other dealt with the input/output and display interface. Users could write computer programs in BASIC. A badge-engineered version of the PC-1211, the TRS-80 Pocket Computer (model PC-1), was marketed by Radio Shack in July 1980 as the first iteration of the TRS-80 Pocket Computer with just a marginally different look (outer plastic parts in black, not brown, gray display frame) Technical specifications *24 digit dot matrix LCD *Full QWERTY-style keyboard *Integrated beeper *Connector for printer and tape drive *Programmable in BASIC *Uses four MR44 Mercury button cells *Battery life in excess of 200 hours *1424 program steps, 26 permanent variable locations (- or -) and 178 variables shared with program steps *Built out of off-the-shelf CMOS comp ...
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