The System 2A comprised:
8K RAM + 8K ROM Board (populated with 8K RAM)
8-Slot Backplane (fully populated with 8 sockets and buffers for the address bus)
3U Cased Vero Card Frame (with 8 sets of card guides, boards fitted with front panels)
Cassette Operating System (COS) in ROM
System BASIC in ROM
Optional extras:
Monitor