TRS-80 is the name of a computer series produced by Tandy Corporation (also known as Tandy RadioShack) between 1977 and 1984. The company later rebranded as Radio Shack. "The '80' refers to the Zilog Z80 CPU, which was built into the first TRS-80 computers. Additionally, portable and handheld computers (essentially sophisticated pocket calculators) were sold under the TRS-80 label.
Below is a selection of the various home computer systems that were produced:
- TRS-80 with Z80 CPU, released 1977 (mostly compatible with the Video Genie line, from 1981):
- Model I/III/4/4P
- Model II/12/16/16B
- TRS-80 Color Computer (also known as "CoCo") with MOS Technology 6809 CPU:
- CoCo 1: with 4 KB, 16 KB, or 32 KB RAM, released 1980 (compatible with the Dragon 32/64, released 1982).
- CoCo 2: similar design to model 1, 16 KB or 64 KB RAM and compatible with OS-9, released 1983.
- CoCo 3: expanded graphics and a minimum of 128 KB RAM, expandable to 512 KB, released 1986.
- TRS-80 MC-10 (Motorola 6803 CPU with only 4KB RAM and 8KB ROM): Beginner computer system designed to compete with the ZX-81 and VIC-20, released 1983.
