Technical data

1-12 Product Overview
DIO-II Model 400s systems have the following components:
Power supply
Motherboard with two DIO-II slots
Additional 3-slot DIO-II backplane
CPU board with attached emulator board and memory modules
Graphics controller or interface board
Mass storage devices
An optional HP-IB interface board may also be included.
ISA Model 400s systems have the following components:
Power supply
Motherboard with two DIO-II slots
Additional 4-slot ISA backplane that includes support for the Apollo To-
ken Ring network board
CPU board with attached emulator board and memory modules
Graphics board
Mass storage devices
An optional HP-IB interface board may also be included.