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History of Computers part 1
Montāžas Teksta
- Slidkalniņš: 1
- Bell Laboratories scientist George Stibitz uses relays for a demonstration adder (1939)
- George Stibitz
- George Stibitz made the "Model K" Adder. The model was called that because he made on his "Kitchen" table, this straightforward indication of circuit helps prove a concept for adding Boolean logic to the design of computers, ending up with the making of the relay-based Model I Complex Calculator in 1939. Also in that year in Germany, engineer Konrad Zuse made his Z2 computer, also using telephone company relays.
- Slidkalniņš: 2
- First Computer Program to Run on a Computer (1948)
- The University of Manchester had researchers Frederic Williams, Tom Kilburn, and Geoff Toothill made the Small-Scale Experimental Machine (SSEM) or know as the Manchester "Baby." The Baby was made to test a new type of memory technology made by Williams and Kilburn other known as the Williams Tube. The Williams Tube was the first fast electronic random access memory for technology. Their first program, that had seventeen instructions, written by Kilburn. This was the first computer program to run on a digital, electronic, storing program, on June 21st, 1948.
- Williams
- Kilburn
- Slidkalniņš: 3
- EDSAC is completed (1949)
- EDSAC was one of the first computers that could store programs and be used often. It was built at the University of Cambridge. The computer used vacuum tubes and mercury delay lines to hold memory. The project was led by a professor named Maurice Wilkes. He got his ideas from computer lectures he went to a few years before. One important thing he did was make small programs called subroutines. These were saved on paper tape and helped do the same calculations again and again in bigger programs.
- Maurice Wilkes
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