TRS-80 model 200
Announced:1984
Price:US $999 w/ 24K RAM
Weight:4.25 lbs
CPU:Intel 80C85A @ 2.4MHz
RAM:24K, 72K max
Ports:parallel, serial ports
Bar code, modem, cassette
Display:LCD display: 40 X 16 text
240 x 128 graphics
Power:4 'AA' batteries
Storage:Audio cassette in/out
OS:Microsoft BASIC in ROM






The TRS-80 model 200 portable computer is an enhanced version of, and is mostly software compatible with, the earlier, and more popular, TRS-80 model 100 from 1983.


The only real difference is that the model 200 has twice the vertical screen size of the model 100, and of course the model 200 folds in half, while the 100 does not.


The model 200 has numerous applications permanently stored in ROM for instant access:
  • BASIC - Microsoft BASIC programming language
  • TEXT - Simple word processor
  • ADDRSS - Address keeper
  • SCHEDL - Appointment and task schedule
  • TELCOM - Telecommunications program
  • MSPLAN - Microsoft Multiplan 1.0
  • ALARM - Alarm program

    • The Telecomm program works with the internal 300 baud modem for dialing into remote systems.

    The TRS-80 model 200 was not a top seller, nowhere near that of the earlier model 100. This is probably due to MS-DOS computers becoming all-the-rage, and the model 200 was not one of them.

    Related Links

  • Review from Classic Computer Magazine Archive
  • model 200 from "old-computers.com"

    • 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 million dollar loss into a $20 million dollar profit.
    • 1977: August - 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.
    • 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 US$700 to US$2500.
    • 1980: July - 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.
    • 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 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.
    • 1983: May - Radio Shack introduces the TRS-80 Model 4, for US$2000.
    • 1983: October - 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.
    • 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 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



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