Changes

A 5.25" disc drive. 80 tracks and 708KiB708Kb.  Sold as : '''F1/S''' with controller, '''F1-Z''' without controller as second drive and '''F1/D''' with controller and two drives.  The disc drive also was available as an extended version, called versions : '''F1-XRS''', which also contains a RS232 interface, and '''F1-X''', which can be updated with a RS232 interface.  Disc operation system [[VDOS]] 2.0 on ROM included.