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Some of their early uses were in embedded systems, notably used by NASA for the Apollo Guidance Computer, by the military in the LGM-30 Minuteman intercontinental ballistic missile, the Honeywell ALERT airborne computer, [20] [21] and in the Central Air Data Computer used for flight control in the US Navy's F-14A Tomcat fighter jet.
In portable computers (such as laptops) there is usually an external power supply (sometimes referred to as a "power brick" due to its similarity, in size, shape and weight, to a real brick) which converts AC power to one DC voltage (most commonly 19 V), and further DC-DC conversion occurs within the laptop to supply the various DC voltages ...
Direct current (DC) (red line). The vertical axis shows current or voltage and the horizontal 't' axis measures time and shows the zero value. Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power.
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The ECL circuitry utilized DC voltages of +0 and -2 volts, with the CAU requiring four 50 amp -2 volt power supplies. Power was 400 Hz, to reduce large scale DC power supplies. The 400 Hz power was supplied by a motor/alternator, because even though solid state 400 Hz inverters were available, they were not considered reliable enough to meet ...
Some common DC power connectors. A DC connector (or DC plug, for one common type) is an electrical connector that supplies direct current (DC) power. Compared to domestic AC power plugs and sockets, DC connectors have many more standard types that are not interchangeable. The dimensions and arrangement of DC connectors can be chosen to prevent ...
The Compaq Contura Aero 4/25 and 4/33c were among the earliest subnotebook computers that acted as a precursor to netbooks.They were released in 1994 and originally ran MS-DOS and Windows 3.1.
SAGE Computer Technology was a computer company based in Reno, Nevada, United States. It was founded in 1981 by Rod Coleman, Bill Bonham and Bob Needham; it went through several name changes. The change from Sage computer came about when "Sage Software" in Maryland demanded cessation of use of the name Sage in the computer segment. [1]