Tandy DeskMate I
Tandy DeskMate I was the first release of the Tandy DeskMate operating environment for the personal computer, made specifically for the Tandy 1000 line-up of PCs. It was initially released in November 1984, and it features a very basic text-based design made for ease of use. It is usually ran on top of either MS-DOS (usually Tandy's OEM releases of MS-DOS) or TRSDOS.