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Wikipedia / 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 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 components, including SC43177/SC43178 processors at and three TC5514P RAM modules

Accessories

  • CE-121 Cassette Interface

  • CE-122 Printer

TRS-80 Pocket Computer ("PC-1")

A badge-engineered version of the Sharp PC-1211 was introduced in July 1980 and marketed by Radio Shack as the original TRS-80 Pocket Computer. This was later referred to as the "PC-1" to differentiate it from subsequent entries (PC-2 onwards) in the TRS-80 Pocket Computer line.

See also

References