TRS-DOS (which stood for the Tandy Radio Shack - Disk Operating System) was the operating system for the Tandy TRS-80 line of 8-bit Z-80 micro-computers that were sold through Radio Shack through the late 1970s and early 1980s. Their own manuals recommended that it be pronounced triss-doss but the common derisive term referred to the platform as trash-eighties and thus this software was sometimes called trash-dos by loyalists of other computing p...
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TRS-DOS (which stood for the Tandy Radio Shack - Disk Operating System) was the operating system for the Tandy TRS-80 line of 8-bit Z-80 micro-computers that were sold through Radio Shack through the late 1970s and early 1980s. Their own manuals recommended that it be pronounced triss-doss but the common derisive term referred to the platform as trash-eighties and thus this software was sometimes called trash-dos by loyalists of other computing platforms. TRS-DOS should not be confused with Tandy DOS a version of MS-DOS licensed from Microsoft for Tandy's x86 line of PC's.
TRS-DOS was primarily a way of extending the MBASIC (BASIC in ROM) with additional I/O (input/output) commands that worked with disk files rather than the cassette tapes that were used by most other TRS-80 systems.
TRS-DOS supported up to four floppy (mini-diskette) drives which used 5 1/4" (five and one quarter inch) diskettes with a capacity of 160K (kilobytes) each. The drives were numbered 0 through 3 and the...
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