Data General MicroNOVA

This is an original DG MicroNOVA and was manufactured in late 1979; the line originated in 1975. It is the direct predecessor to my MicroNOVA MP/100 . This example dates from late 1977. As in the "standard" NOVA architecture, this is a 16- bit machine and has four 16- bit accumulators, a 15- bit Program Counter, and an I/O bus capable of addressing sixty- four devices. Implemented around the single- chip mN601 CPU, it executes the basic NOVA instruction set plus a set of stack instructions and single- precision unsigned multiply/ divide operations. The maximum amount of mainstore the MicroNOVA can address is 32kW (64Ko) as limited by the 15- bit mainstore address bus.