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Commodore DOS

Commodore DOS / CBM DOS
Listing the directory of a 1541-formatted disk
DeveloperCommodore International
Latest release10.0
Available inEnglish
PlatformsMOS 6502 family
LicenseProprietary

Commodore DOS, also known as CBM DOS, is the disk operating system used with Commodore's 8-bit computers. Unlike most other DOSes, which are loaded from disk into the computer's own RAM and executed there, CBM DOS is executed internally in the drive: the DOS resides in ROM chips inside the drive, and is run there by one or more dedicated MOS 6502 family CPUs. Thus, data transfer between Commodore 8-bit computers and their disk drives more closely resembles a local area network connection than typical disk/host transfers.


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