The [[Dobbertin Harddisc]] HD20 consists of four partitions with 5120 KB each. X-DDOS allows the access to this 5 MB partitions by using the drive letters D, E, F and G. The integration of X-DDOS allows to load some games and demos from hard disc. Also CP/M and CP/M Plus can be booted from hard disc.
== Downloads ==
* [[Media:X-DDOS20.ZIP|X-DDOS v2.0 (zipped ROM file)]]