pin diagram
71Charlieplexing — is a technique proposed in early 1995 by Charlie Allen at Maxim Integrated Products for driving a multiplexed display in which relatively few I/O pins on a microcontroller are used to drive an array of LEDs. The method utilizes the tri state… …
72Contract bridge — Bridge declarer play Alternative name(s) Bridge Type trick taking Players 4 Skill(s) require …
73Enigma machine — Military Enigma machine …
74Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
75Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
76Copper — For other uses, see Copper (disambiguation) …
77Oval spinet — The oval spinet is a type of harpsichord invented in the late 17th century by Bartolomeo Cristofori, the Italian instrument maker who later achieved fame for inventing the piano. The oval spinet was unusual for its shape, the arrangement of its… …
78ER-модель данных — У этого термина существуют и другие значения, см. ER. Модель сущность связь (ER модель) (англ. entity relationship model, ERM) модель данных, позволяющая описывать концептуальные схемы предметной области. ER модель используется при… …
79Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
80Automated teller machine — cash machine redirects here. For the Hard Fi song, see Cash Machine. An NCR Personas 75 Series interior, multi function ATM in the United States …
