Jump to content

Sharp PC-1211

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Matthiaspaul (talk | contribs) at 23:33, 6 September 2015 (→External links: -typos). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Sharp PC1211. This example exhibits a display that is failing.
CE-122 printer in travel case.
Rebadged "TRS-80 Pocket Computer" version.

The Sharp PC-1211 is a small handheld computer. It 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.

A badge-engineered version was marketed by Radio Shack as the original model of the TRS-80 Pocket Computer line.

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 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

Accessories

  • CE-121 Cassette Interface
  • CE-122 Printer

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

A badge-engineered version of the Sharp PC-1211 was 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/Tandy Pocket Computer line.)[1]

Introduced in July 1980, the PC-1 measured 175 × 70 × 15 mm and weighed 170 g, and had a one-line, 24-character alphanumeric LCD.[2][3]

The TRS-80 Pocket Computer was programmable in BASIC, with a capacity of 1424 "program steps". This memory was shared with variable storage of up to 178 locations, in addition to the 26 fixed locations named A through Z.

Programs and data could be stored on a cassette tape through an optional external tape interface unit. A printer/cassette interface was available, which used an ink ribbon on plain paper.

References

  1. ^ "TRS 80 PC-1". old-computers.com. Retrieved 2015-03-05. Nowadays, it is often referred to as the TRS-80 PC-1, so as to differentiate it from its successor, the TRS-80 PC-2 (and following)
  2. ^ "Radio Shack Pocket Computer". Retrieved 4 August 2011.
  3. ^ "TRS-80 Pocket Computer PC-1". Personal Computer Museum. Retrieved 4 August 2011.
Wikimedia Commons has media related to Sharp PC-1211.


Stub icon

This microcomputer- or microprocessor-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Sharp_PC-1211&oldid=679815605"