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ENIAC
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Computers
In February, the public got its first glimpse of the ENIAC, a machine built by
John Mauchly and J. Presper Eckert that improved by 1,000 times on the speed of
its contemporaries.
| Start of project: |
1943 |
| Completed: |
1946 |
| Programmed: |
plug board and switches |
| Speed: |
5,000 operations per second |
| Input/output: |
cards, lights, switches, plugs |
| Floor space: |
1,000 square feet |
| Project leaders: |
John Mauchly and J. Presper Eckert. |
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AVIDAC
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Computers
An inspiring summer school on computing at the University of Pennsylvania's
Moore School of Electrical Engineering stimulated construction of
stored-program computers at universities and research institutions. This free,
public set of lectures inspired the EDSAC, BINAC, and, later, IAS machine
clones like the AVIDAC. Here, Warren Kelleher completes the wiring of the
arithmetic unit components of the AVIDAC at Argonne National Laboratory.
Robert Dennis installs the inter-unit wiring as James Woody Jr. adjusts the
deflection control circuits of the memory unit.
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