TRSDOS
Videos
TRSDOS is the operating system for the Tandy TRS-80 line of eight-bit Zilog Z80 microcomputers sold through Radio Shack from 1977 through 1991. Tandy's manuals recommended that it be pronounced triss-
Boot Screen of Model 4 TRSDOS 6
Zilog Z80
Videos
The Zilog Z80 is an 8-bit microprocessor designed by Zilog, first released in 1976; it played an important role in the evolution of early personal computing. It was designed to be software-compatible
TRSDOS
…TRSDOS (Tandy Radio Shack Disk Operating System) is the operating system for the Tandy TRS-80 line of eight-bit Zilog Z80 microcomputers sold through Radio Shack from 1977 through 1991. Tandy's manuals recommended that it be pronounced triss-doss. TRSDOS should not be…
A Z80 manufactured in June 1976
A May 1976 advertisement for the Z80 outlines its major advantages over the 8080.
Photo of the original Zilog Z80 microprocessor design in depletion-load nMOS. Total die size is 3545×3350 μm. The blue squares around the outside are the pads that connect to the external pins. This chip was manufactured in 1990.
PIO Z84C2008