The TRS-80 is a line of personal computers produced by Tandy Corporation in the late 1970s and early 1980s. It was one of the first mass-produced microcomputers and became popular for its affordability and ease of use. The original model, released in 1977, featured a Zilog Z80 microprocessor and came with a built-in keyboard and monitor. The TRS-80 was widely used in schools and homes, offering a range of software for various applications, including word processing and programming. Its success helped pave the way for the personal computer revolution, influencing future models and the development of the computing industry.