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20:07, 8 May 2018 DDOS is a floppy disc operating system from the German company [[Dobbertin]] Industrie Electronic. DDOS is delivered as a 16 KB EPROM with a lot of software and a manual.
DDOS can be used as a rom 7 replacement.
DDOS has the ROM name 'CPM ROM' but shows a sign-on message of "DDOS 2.00 (C)1988 Dobbertin GmbH"
== RSX commands ==
(same operation as [[AMSDOS]]): |A, |B, |CPM, |DISC, |DISC.IN, |DISC.OUT, |TAPE, |TAPE.IN, |TAPE.OUT, |DRIVE, |USER, |ERA, |REN
(same operation as [[VDOS]]): |ATTRIBUT, |CAS, |CAS.IN, |CAS.OUT, |FORMAT, |SLOW, |FAST, |ROMOFF
DDOS extras: |S, |S1, |S2, |DOSOFF, |SYSCOPY, |TYPE, |HELP
|HELP,<number> - display list of RSX commands for the given rom <number>
[[Category:Disc Operating System]] [[Category:Expansion ROM]]