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- Trevor Pearcey sees Howard Aiken’s Mk1
(or Automatic Sequence Controlled Calculator) at Harvard, and
decides that paper tape-based systems are too slow, and that a
fully electronic design would be superior.
- Trevor Pearcey begins to formulate the
logical planning for an “Automatic Computer” .
- Chief of Radiophysics Edward Bowen and
Assistant Chief Joseph Pawsey decided on radioastronomy and
rain-physics as the two main areas of research, with a third,
radio propagation dropped in favour of the development of
- Construction of the Mk1 computer
begins with Maston Beard in charge of engineering and Trevor
Pearcey covering the logical design.
- First test program is run in late
November — a long multiplication routine.
- Brian Cooper constructs a drum-based
secondary storage unit, and begins to construct a larger
drum-based device with greater capacity.
- The Mk1 is publicly demonstrated.
- Music first played on the Mk1.
- Reginald Ryan doubles the Mk1’s
mercury delay line storage capacity to 1024 words.
- Maston Beard designs a disk-type
secondary storage unit, abandoning Brian Cooper’s second
- Maston Beard with the assistance of
Geoff Chandler completely redesigns the main memory circuits
which were designated MKII.
- The Mk1 is dismantled for shipment to
- June 14. The Computation Laboratory is
opened at the University of Melbourne and the machine is renamed
- CSIRAC is decommissioned and donated
to the Museum of Victoria. It is replaced by an IBM 7044.
- CSIRAC is removed from storage and
placed on display at Caulfield (later Chisolm) Institute of
Technology (now Caulfield campus, Monash University).
- CSIRAC is returned to storage in the
Museum of Victoria.
- In June the machine is placed on
display at the University of Melbourne, as part of the 40th
Anniversary Celebration of CSIRAC arriving in Melbourne.
- In December, CSIRAC is placed back
into storage at the Scienceworks Museum,
- CSIRAC is on permanent display at Museum
Victoria, Carlton Gardens,