Trevor Pearcey (5 March 1919 – 27 January 1998) was a British-born Australian scientist, who created CSIRAC, one of the first stored-program electronic computers in the world.
Born in Woolwich, London, he graduated from Imperial College in 1940 with first class honours in physics and mathematics.
In a 1948 paper, published in the Australian Journal of Science, he envisaged using a digital electronic computer for providing information over a national telecommunications network: It is not inconceivable that an automatic encyclopedic service operated through the national teleprinter or telephone system, will one day exist.
One of his calculators filled a small room, weighing 7 tons.
In his later years he lived on the Mornington Peninsula near Melbourne.