Template:Infobox computing device The Sharp PC-1211 is the first pocket computer ever released, marketed by Sharp Corporation in March 1980.<ref name=cw>Template:Cite journal</ref><ref>Template:Cite journal</ref> 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 specificationsEdit
- 24 digit dot matrix LCD
- Full QWERTY-style keyboard
- Integrated beeper
- Connector for printer and tape drive
- Programmable in BASIC
- Uses four MR44 Template:Val Mercury button cells
- Battery life in excess of 200 hours
- 1424 program steps, 26 permanent variable locations (Template:Mono-Template:Mono or Template:Mono-Template:Mono) and 178 variables shared with program steps
- Built out of off-the-shelf CMOS components, including SC43177/SC43178 processors at Template:Val and three TC5514P Template:Val RAM modules
AccessoriesEdit
- CE-121 Cassette Interface
- CE-122 Printer
Template:AnchorTRS-80 Pocket Computer ("PC-1")Edit
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.<ref name='oc_pc1'>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
- Sharp Calculator PC1211.jpg
Sharp PC-1211. This example exhibits a display that is failing, a very common problem with Sharp's displays of the time.
- Sharp-PC-1211-001.jpg
CE-122 printer in a travel case.
- TRS-80 Pocket Computer.jpg
Rebadged "TRS-80 Pocket Computer PC-1" version.
- TRS80PocketComputerWithCassetteDrive.jpg
TRS-80 Pocket Computer with external cassette tape interface unit and Realistic Minisette 9
See alsoEdit
ReferencesEdit
External linksEdit
- 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
Template:TRS-80 and Tandy computers Template:Sharp Corporation Template:Dynabook Inc. Template:Authority control