UNIVAC 1100/80

The 1100/80 used a new circuit technology known as emitter- coupled logic, which brought about a considerable increase in speed. The considerations of chip placement on boards and the wiring connections among them had become so complex that the engineers developed new software to do the circuit designs. The 1100/80 was the first 1100 to use cache memory. (IBM had introduced cache memory on its 360/85, announced in 1968.) This was a relatively small (maximum of 16,384 words), very fast (45-nanosecond access time) memory in a separate module that could be accessed by any processor in the system.