== M1 ==
A 3.5" disc drive. 80 tracks and 1.4MB. Sold as '''M1/S''' with controller, '''M1-Z''' without controller as second drive and '''M1/D''' with controller and two drives. The disc drive also was available as an extended version, called '''M1-XRS''', which also contains a [[RS232 ]] interface, and '''M1-X''', which can be updated with a RS232 interface. Disc operation system [[VDOS]] 2.0 on ROM included.
== The Vortex disc drive controller ==