ORDVAC
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The ORDVAC, is an early computer built by the University of Illinois for the Ballistic Research Laboratory at Aberdeen Proving Ground. It was a successor to the ENIAC. It was based on the IAS architec
ORDVAC
Vacuum tube
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A vacuum tube, vac tube, electron tube, thermionic valve, or tube is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been
ORDVAC
…eight hours per night. It was one of the first computers to be used remotely and probably the first to routinely be used remotely. The ORDVAC used 2178 vacuum tubes. Its addition time was 72 microseconds and the multiplication time was 732 microseconds. Its main memory consisted of 1024 words of 40 bits each, stored…
Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages
Operating tubes in an audio power amplifier, the hot cathodes emitting their distinctive red-orange glow
Illustration representing a primitive triode vacuum tube and the polarities of the typical DC operating potentials. Not shown are the impedances (resistors or inductors) that would be included in series with the C and B voltage sources.
US WWV radio station signal generator using vacuum tubes, 1943