The TRS-80 Micro Computer System is a desktop microcomputer developed by American company Tandy Corporation and sold through their Radio Shack stores. Launched in 1977, it is one of the earliest mass-
TRS-80 Model I with Expansion Interface and display
Tandy/Radio Shack TRS-80 Model I
Byte's "1977 trinity": Commodore PET, Apple II, and TRS-80 Model I
TRSDOS is the operating system for the Tandy TRS-80 line of eight-bit Zilog Z80 microcomputers sold through Radio Shack from 1977 through 1991. Tandy's manuals recommended that it be pronounced triss-
Boot Screen of Model 4 TRSDOS 6