HITAC M-660H

The M-660H was a large machine, positioned as the successor of the M-260H, and the processor was miniaturized with fewer gates by using an efficient logic system. At the same time, 1 megabit DRAM was installed for the first time in a domestic machine in order to reduce the machine cycle to the greatest extent possible. Using logic systems for greater speed, such as look-ahead control and a high-speed decimal operation mechanism, these processors achieved world-class high-performance and space/power-savings.