AMSDOS


AMSDOS is a disk [operating system] for the 8-bit Amstrad CPC Computer. The name is a contraction of Amstrad Disk
Operating System.
AMSDOS first appeared in 1984 on the CPC 464, with added 3 inch disk drive, and then on the CPC 664 and CPC 6128. Relatively fast and efficient for its time, AMSDOS was quicker and more effective than most of its contemporaries.
AMSDOS was provided built into ROM and was accessible through the built-in Locomotive BASIC as well as through firmware routines. Its main function was to map the cassette access routines through to a disk drive. This enabled the majority of cassette-based programs to work with a disk drive with no modification. AMSDOS was able to support up to two connected disk drives.

Commands

AMDOS extends the AMSTRAD BASIC by the addition of a number of external commands which are identified by a preceding ¦ (bar) symbol. The following is a list of external commands supported by AMSDOS.¦A¦B

Alternatives

Other disk operating systems for the Amstrad range included CP/M, RAMDOS, which allowed the full capacity of single-density 3 ½" disks to be used providing a suitable drive was connected and SymbOS.