Sharp PC-1211

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Sharp PC1211. This example exhibits a display that is failing.
CE-122 printer in travel case

Sharp PC-1211 is a small handheld computer, also marketed as Radio Shack TRS-80 Pocket Computer (aka "PC-1"). This model 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.

Technical specifications[edit]

  • 24 digit dot matrix LCD
  • Full QWERTY-style keyboard
  • Integrated beeper
  • Connector for printer and tape drive
  • Programmable in BASIC
  • Uses four MR44 1.35 V Mercury button cells
  • Battery life in excess of 200 hours
  • 1424 program steps, 26 permanent variable locations (A-Z or A$-Z$) and 178 variables shared with program steps
  • Built out of off-the-shelf CMOS components, including SC43177/SC43178 processors at 256 kHz and three TC5514P 4 Kbit RAM modules


  • CE-121 Cassette Interface
  • CE-122 Printer

External links[edit]