JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
First programmable computer. Technicians restoring the first stored-program computer. This computer (known affectionately as "Baby") ran the world's first program on 21 June 1948. It was developed at Manchester University, England, by Tom Kilburn and Freddie Williams. The restoration is part of its 50th anniversary celebrations, and is being carried out by the Computer Conservation Society. Baby is over 2 metres tall, and almost five metres wide, and stored information on a cathode ray tube. The screen had 32 lines of 32 digits, giving a total memory of 1024 bits (binary digits). Modern computers may have a million times this, or more.
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