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A plugboard or control panel (the term used depends on the application area) is an array of jacks or sockets (often called hubs) into which patch cords can be inserted to complete an electrical circuit. Control panels are sometimes used to direct the operation of unit record equipment, cipher machines, and early computers. The array of holes is ...
Patch panel, a number of circuits, usually of the same or similar type, which appear on jacks for monitoring, interconnecting, and testing circuits in a convenient, flexible manner; Plug (disambiguation) Perforated hardboard, tempered hardboard which is pre-drilled with evenly spaced holes. The holes are used to accept pegs or hooks to support ...
All but the earliest machines had high-speed mechanical feeders to process cards at rates from around 100 to 2,000 per minute, sensing punched holes with mechanical, electrical, or, later, optical sensors. The operation of many machines was directed by the use of a removable plugboard, control panel, or connection box. [7]
(The specific 72 columns used were selectable using a plugboard control panel, which is almost always wired to select columns 1–72.) Sometimes the ignored columns (usually 73–80) were used to contain a sequence number for each card, so the card deck could be sorted to the correct order in case it was dropped.
A control panel is a flat, often vertical, area where control or monitoring instruments are displayed or it is an enclosed unit that is the part of a system [1] that users can access, such as the control panel of a security system (also called control unit).
Note plugboard control panel used to program the 604, at bottom. The IBM 604 Electronic Calculating Punch was the world's first mass-produced electronic calculator along with its predecessor the IBM 603. [1] It was an electronic unit record machine that could perform multiple calculations, including division.
The IBM 513, 514 and 519 all operated at 100 cards per minute, [8] and their operations were directed by a removable control panel that was known as a plugboard. [9] As with other IBM punched card devices that operated as automatic punches, cards are fed "face down, 12-edge first.".
Control panel (software), the tool in the operating system which allows most or all of the settings to be changed through a user interface Control Panel (Windows) System Preferences, a computer program in the macOS operating system; Web hosting control panel; Plugboard, also called a control panel
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