Consists of instruction in computer concepts, info methods, networking, working methods, laptop hardware, the Web, software functions, assist desk concepts and problem solving, and ideas of customer support. Performing far better than the corporate projections of 3,000 items for the primary year, within the first month after its release Tandy Radio Shack´s first desktop pc — the TRS-eighty — sells 10,000 units. The TRS-eighty was priced at $599.ninety five, included a Z80 microprocessor, video display, 4 KB of reminiscence, a built-in FUNDAMENTAL programming language interpreter, cassette storage, and easy-to-perceive manuals that assumed no prior information on the a part of the person. The TRS-80 proved well-liked with schools, in addition to for residence use. The TRS-80 line of computer systems later included shade, portable, and handheld variations earlier than being discontinued within the early 1990s.