Editing Acorn Archimedes A3020 (section)

== Storage ==

The floppy drive is a 3.5-inch high-density unit, formatted to 1.6 MB under the ADFS "F" format and driven by the 82C711.<ref name="trm">[[Acorn A3010, A3020 and A4000 Technical Reference Manual]], Acorn Computers Ltd — hosted on this wiki.</ref> The on-board IDE interface, terminating at connector PL1, supports one internal 2.5-inch drive; launch machines used a 60 MB unit, and an 80 MB education variant followed.<ref name="chris" /><ref name="trm" /> This on-board IDE is one of the main differences from the A3000, which had no built-in hard-disc support.<ref name="wp" />