Editing MicroBee (section)

== Disk machines ==
A floppy disk based machine was also released in 1983.  Early disk machines used {{nowrap|56 kB}} of [[Static random-access memory|static RAM]], with a {{nowrap|4 kB}} [[BIOS]] [[Read-only memory|ROM]].  They ran [[CP/M]] 2.2.  The [[disk controller]], based on the [[Western Digital]] WD1793 [[Floppy Disk Controller]] chip was contained in an add-on card that connected to the core board.  The machine used 5.25" [[floppy disk]]s.

[[Dynamic random-access memory|Dynamic RAM]] disk machines with {{nowrap|64 or 128 kB [[Random-access memory|RAM]]}} followed soon after, with a WD2793 Floppy Disk Controller incorporated on the core board.  Later disk machines used {{nowrap|3.5" floppy disks}}.