TRS-80

"The TRS-80, the biggest name in little computers."

The TRS-80 is a series of computers produced by Tandy (aka Radio Shack) from 1977 to 1981. It is part of the "1977 trinity" - the first commercially successful personal computers, along with the Apple II and the Commodore PET. Its low cost and wide availability made it very popular, and at a point it had the largest software library of any personal computer.