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History
TRSDOS
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TRSDOS is the operating system for the Tandy TRS-80 line of eight-bit Zilog Z80 microcomputers that were sold through Radio Shack from 1977 through 1991. Tandy's manuals recommended that it be pronounced triss-doss. TRSDOS should not be confused with Tandy DOS, a version of MS-DOS licensed from Microsoft for Tandy's x86 line of personal computers (PCs).
Boot Screen of Model 4 TRSDOS 6
Boot Screen of Model 4 TRSDOS 6
TRS-80
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The TRS-80 Micro Computer System is a desktop microcomputer launched in 1977 and sold by Tandy Corporation through their Radio Shack stores. The name is an abbreviation of Tandy Radio Shack, Z80 [microprocessor]. It is one of the earliest mass-produced and mass-marketed retail home computers.
TRS-80 Model I with Expansion Interface and display
TRS-80 Model I with Expansion Interface and display
TRS-80
TRS-80
Tandy/Radio Shack TRS-80 Model I
Tandy/Radio Shack TRS-80 Model I
Byte's "1977 trinity": Commodore PET, Apple II, and TRS-80 Model I
Byte's "1977 trinity": Commodore PET, Apple II, and TRS-80 Model I