Vignette 48: CIRRUS - second-generation computer

Constructed from scratch by the University’s Electrical Engineering Department between 1959 and 1962, CIRRUS was a second-generation Australian designed machine, featuring a transistorised magnetic core memory and a microcoded controller. It set the stage for the next decade of computer designs. Its symbolic Assembler code and  modern Compiler language provided a versatile platform for scientific calculations within a modest budget.

The name CIRRUS itself is a fusion of letters from CSIRO, WRE, University, and the ‘S’ from satellite reflected the exploratory nature of its design, akin to the far-reaching formations of cirrus clouds.

The University’s investment of £15,000 initiated computer research activities, and industry support ensured CIRRUS coming to fruition. While operational until 1971, hardware maintenance issues eventually led to its retirement.

Today, CIRRUS is a valuable artefact in the University, a testament to the institution’s pivotal role in computing during the 1950s and 60s.

The University of Adelaide: 150 Years of Making History.  Nurturing excellence. p.71