(1) For the terminate and stay resident program, see
TSR.
(2) (
Tandy
Radio
Shack-80) An early line of personal computers from Tandy Corporation (later renamed RadioShack). In 1977, the TRS-80, along with the Apple II and Commodore PET, ushered in the personal computer revolution. The TRS-80 was affectionately called "Trash-80," and its TRS-DOS operating system was "Trash-DOS." See
RadioShack.
The TRS-80
This ad suggested every home should have a TRS-80. At an initial price of $599, it was relatively affordable in the late 1970s, and it contributed to the personal computer explosion. See
personal computer.
(Image courtesy of RadioShack Corporation.)