On the F1-X/XRS Controllers the Disc operation system [[VDOS]] 2.0 on ROM was included.
== M1 ==
A 3.5" disc drive. 80 tracks and 708KB Formatted per Disk.
* '''M1 - S''' Single 3.5" drive with controller.
* '''M1 - Z''' Single 3.5" drive without controller.
* '''M1 - D''' Double 3.5" drive with controller.
The disc drive also was available as an extended version:
* '''M1-XRS''' which also contains a [[RS232]] interface.
* '''M1-X''' which can be updated with a [[RS232]] interface.
On the M1-S/D Controllers the Disc operation system VDOS 1.0 on ROM was included.
On the M1-X/XRS Controllers the Disc operation system VDOS 2.0 on ROM was included.
== Pictures ==