Radio Shack Pocket Computer Model: PC-1 Introduced: July 1980 Weight: 170g / 6.0 oz. Price: US 230ドル CPU: SC43177, SC43178 RAM: 1.5K Ports: Expansion connector Display: 24 X 1 text LCD Storage: * Cassette storage Options: * Printer, Tape I/O OS: BASIC in ROM * Requires Expansion Interface

The 49ドル.00 Cassette Interface is a requirement for the serious Pocket Computer enthusiast, otherwise there's no way to permanently save your data. Power is provided by 3 internal "AA" batteries or by an external power adapter.


For those who prefer hardcopy, the 149ドル.00 Printer/Cassette Interface is superb. It is a miniature dot-matrix printer (not a thermal printer) as well as a Cassette Interface for data storage/retrieval.

Built-in rechargeable Ni-Cd batteries supplies power when the external power adapter is not being utilized. Unfortunately, the printer prints 16 characters-per-line, while the PC-1 display is 24 characters wide.




The TRS-80 PC-1 is the first-ever BASIC-programmable pocket-sized computer! It's actually the Sharp PC-1211, sold by Radio Shack in the US.

It takes deep-pockets to hold the PC-1, but not to buy one. Costing only 230,ドル it was very portable and useful.


A couple of years later, in 1982, Radio Shack released the PC-2. It offers many improvements over the PC-1, but look - it's huge by comparison!

Larger and heavier (400g vs. 170g), it offers a more powerful BASIC and up to 8K RAM when using the RAM/ROM module slot on the back.

"Click" on the PC-2 for more information.


In 1983, the PC-3 appeared at your local Radio Shack store. Ah, now that's a pocket-sized computer!

A new record in computer miniaturization, it is very slim and light, only 105g, or 3.8 oz.

"Click" on the PC-3 for more information.

History of the Radio Shack Computers 1921: - Radio Shack begins as a one-store retail and mail-order company catering to ham operators and electronics buffs. 1963: - Charles Tandy buys the chain of stores, and within two years turned a 4ドル million dollar loss into a 20ドル million dollar profit. 1977: August - Radio Shack announces the TRS-80 Model I microcomputer. 1977: September - One month after launching the TRS-80, 10,000 are sold. 1979: May - Tandy/Radio Shack announces the TRS-80 Model II. 1979: October - Radio Shack begins shipping the TRS-80 Model II to users. 1980: July - Radio Shack introduces the TRS-80 Model III, priced from US700ドル to US2500ドル. 1980: July - Radio Shack introduces the TRS-80 Color Computer, and sells for US400ドル. 1980: July - Radio Shack introduces the TRS-80 Pocket Computer. Price is US230ドル. 1981: January - Radio Shack ceases production of the TRS-80 Model I, and recalls units from the US market, due to failure to meet new FCC radio-frequency interference regulations. 1982: January - Radio Shack introduces the TRS-80 Model 16, with 8-inch floppy drives, and optional 8-MB hard drive. 1982: January - Radio Shack introduces the TRS-80 Pocket Computer, Model PC-2, for US280ドル. 1983: March - Radio Shack announces its TRS-80 Model 100 portable computer. Price is US799ドル for 8KB version, to US1134ドル for the 32KB version. 1983: May - Radio Shack introduces the TRS-80 Model 4, for US2000ドル. 1983: October - Tandy/Radio Shack announces the "transportable" TRS-80 Model 4P, for US1800ドル. 1983: Radio Shack introduces the TRS-80 Pocket Computer, Model PC-4, replacing the PC-1, for US70ドル. 1983: Tandy releases the TRS-80 Model 2000, which uses the Intel 80186 microprocessor. 1983: Radio Shack unveils the TRS-80 Model 12 at the CP/M '83 Show. Price is US3200ドル. 1985: March - Radio Shack introduces the Tandy 6000 multiuser system. It features Z80A and 68000 processors, 512 KB RAM, 80x24 text, graphics, 1.2-MB 8-inch disk, optional 15 MB hard drive, TRS-DOS, or XENIX 3.0. It supports up to 9 users. Source: Chronology of Events in the History of Microcomputers