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Sense switches and output lights, upper right. on an IBM 701, introduced in 1952 Sense switches on a Data General Eclipse S/130, lower left. A sense switch, or program switch, is a switch on the front panel of a computer whose state can be tested by conditional branch instructions in software. [1] Most early computers had several sense switches.
In 1937 W.B. Schulte, [2] McGall's employer, started the company MICRO SWITCH. The company and the Micro Switch trademark have been owned by Honeywell Sensing and Control since 1950. [3] The name has become a generic trademark for any snap-action switch. Companies other than Honeywell now manufacture miniature snap-action switches.
A toggle DIP switch with four inputs and outputs Bank of toggle switches on a Data General Nova minicomputer front panel Toggle switches with the shared cover preventing certain forbidden combinations. A toggle switch or tumbler switch is a class of electrical switches that are manually actuated by a mechanical lever, handle, or rocking mechanism.
A toggle light switch Internal components of a toggle switch. The toggle mechanism provides "snap-action" through the use of an "over-center" geometry. The design was patented in 1916 by William J. Newton and Morris Goldberg. [2] The switch actuator does not control the contacts directly, but through an intermediate arrangement of springs and ...
PDP–11/34 front panel which was a replacement for toggle switches in earlier PDP–11 computers VT71 – Terminal with LSI-11/03 and Q-Bus backplane with direct mapped character display for text editing and typesetting. VT103 – VT100 with backplane to host an LSI-11.
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Electrically, a typical "3-way" switch is a single pole, double throw (SPDT) switch. By correctly connecting two of these switches together, toggling either switch changes the state of the load from off to on, or vice versa. The switches may be arranged so that they are in the same orientation for off, and contrasting orientations for on. [1]
Amazon has been tracking the 100+ best gifts of the year, from trendy favorites to bestsellers to the olive oil that knocked my mom's socks off. Quick Overview Bearaby Cotton Hand-Knit Weighted ...