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current | 22:59, 28 April 2011 | 2,120 × 1,592 (854 KB) | W Nowicki | {{Information |Description ={{en|1=Block diagram of the IBM Selective Sequence Electronic Calculator (SSEC). Designed starting in late 1944, it was demonstrated in January 1948. It was the first computer to be able to treat its own ins |
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