Did you own one of these? The TRS-80 was introduced in 1977. It was one of the first home computers launched around the same time as the Apple II and Commodore PET. Tandy competitors nicknamed the mostly plastic computer the "Trash-80.” The TRS-80 was developed within the Radio Shack engineering group, based upon several processor chips, SC/MP, PACE, 8008, 8080 and finally the Z80. It used a black & white TV set, made by RCA. The earlier models used a basic called Basic Level 1 (Basic and the operating system fit in 4 KB ROM). I remember visiting the Radio Shack stores in the early days of PC's and spending time admiring the TRS-80. There were always one or two on display in the lobby.