Sharp PC-1211
| File:Sharp pc1211.png Sharp PC-1211 | |
| Manufacturer | Sharp Corporation |
|---|---|
| Generation | First |
| Release date | March 1980 |
| CPU | SC43177/SC43178 processors at 256 kHz |
| Memory | three TC5514P 4 Kbit RAM modules |
| Display | 24 digit dot matrix LCD |
| Input | Full QWERTY-style keyboard |
| Power | four MR44 1.35 V Mercury button cells |
| Successor | Sharp PC-5000 |
| Related | Sharp PC-1500 Sharp PC-1251 |
The Sharp PC-1211 is the first pocket computer ever released, marketed by Sharp Corporation in March 1980.[1][2] 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
[edit | edit source]- 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
[edit | edit source]- CE-121 Cassette Interface
- CE-122 Printer
TRS-80 Pocket Computer ("PC-1")
[edit | edit source]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.[3]
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Sharp PC-1211. This example exhibits a display that is failing, a very common problem with Sharp's displays of the time.
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CE-122 printer in a travel case.
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Rebadged "TRS-80 Pocket Computer PC-1" version.
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TRS-80 Pocket Computer with external cassette tape interface unit and Realistic Minisette 9
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A TRS-80 PC-1 with printer & cassette interface and CTR-80A cassette recorder
See also
[edit | edit source]References
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External links
[edit | edit source]
- Sharp PC-1211 on MyCalcDB (database about 1970s and 1980s pocket calculators)
- www.promsoft.com/calcs Sharp Pocket Computers
- Daves Old Computers - TRS-80 Pocket Computer
- The TRS-80 Pocket Computer
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