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.

- 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 million dollar loss into a $20 million dollar profit.

- Charles Tandy buys the chain of stores, and within two years turned a $4 million dollar loss into a $20 million dollar profit. 1977: August - Radio Shack announces the TRS-80 Model I microcomputer for US$600.

- Radio Shack announces the TRS-80 Model I microcomputer for US$600. 1977: September - One month after launching the TRS-80, 10,000 are sold.

- One month after launching the TRS-80, 10,000 are sold. 1979: May - Tandy/Radio Shack announces the TRS-80 Model II.

- Tandy/Radio Shack announces the TRS-80 Model II. 1979: October - Radio Shack begins shipping the TRS-80 Model II to users.

- Radio Shack begins shipping the TRS-80 Model II to users. 1980: July - Radio Shack introduces the TRS-80 Model III, priced from US$700 to US$2500.

- Radio Shack introduces the TRS-80 Model III, priced from US$700 to US$2500. 1980: July - Radio Shack introduces the TRS-80 Color Computer, and sells for US$400.

- Radio Shack introduces the TRS-80 Color Computer, and sells for US$400. 1980: July - Radio Shack introduces the TRS-80 Pocket Computer. Price is US$230.

- Radio Shack introduces the TRS-80 Pocket Computer. Price is US$230. 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.

- 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.

- 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 US$280.

- Radio Shack introduces the TRS-80 Pocket Computer, Model PC-2, for US$280. 1983: March - Radio Shack announces its TRS-80 Model 100 portable computer. Price is US$799 for 8KB version, to US$1134 for the 32KB version.

- Radio Shack announces its TRS-80 Model 100 portable computer. Price is US$799 for 8KB version, to US$1134 for the 32KB version. 1983: May - Radio Shack introduces the TRS-80 Model 4, for US$2000.

- Radio Shack introduces the TRS-80 Model 4, for US$2000. 1983: June - Radio Shack introduces the TRS-80 PC-3, for US$99.95.

1983: October - Tandy/Radio Shack announces the "transportable" TRS-80 Model 4P, for US$1800.

- Tandy/Radio Shack announces the "transportable" TRS-80 Model 4P, for US$1800. 1983: Radio Shack introduces the TRS-80 Pocket Computer, Model PC-4, replacing the PC-1, for US$70.

Radio Shack introduces the TRS-80 Pocket Computer, Model PC-4, replacing the PC-1, for US$70. 1983: Tandy releases the TRS-80 Model 2000, which uses the Intel 80186 microprocessor.

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 US$3200.

Radio Shack unveils the TRS-80 Model 12 at the CP/M '83 Show. Price is US$3200. 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



