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Consist of electronic component that temporarily store instructions waiting to be executed by the processor, data needed by those instructions, and the results of the processed data. (also called random access memory, or RAM) |
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Equals approximately 1,000 bytes. |
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One memory location, or one character |
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Prints by striking an ink ribbon against the printer. One type of impact printer is the dot-matrix printer. |
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Print by means other than striking a ribbon against paper. Examples include ink-jet and laser. |
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Form characters or graphics by using a nozzle that sprays tiny drops of ink onto the page. |
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High-speed, high-quality nonimpact printer that employs copier-machine technology. It converts data from the computer into a beam of light that is focused on a photoconductor drum, forming the images to be printed. |
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Stands for numbers of pages per minute. |
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And output device that visually conveys text, graphics, and video information. |
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A display device that is packaged as a separate unit. |
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An LCD monitor that is the most popular type of flat panel monitor that uses a liquid display crystal, similar to a digital watch, to produce images on the screen. |
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Stands for cathode ray tube. The surface of the screen is composed of pixels |
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Individual picture element. |
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Used to store instructions, data, and information when they are not being used in memory. |
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Use magnetic particles to store items such as data, instructions, and information on a disk's surface. |
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The process of dividing the disk into tracks and sectors so the computer can locate the data, instructions, and information on the disk. |
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A narrow recording band that forms a full circle on the surface of the disk. |
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A storage device that contains one or more inflexible, circular platters that magnetically store data, instructions, and information. |
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When a read/write head touches a platter, usually resulting in the loss of data or sometimes the entire drive. |
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Duplicate of a file, program, or disk that you can use in case the original is lost, damaged, or destroyed. |
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Inexpensive portable storage medium. The most widely used floppy disk is 3.5 inches wide and can typically store up to 1.44 megabytes of data, or 1,474,560 characters. (also called diskettes) |
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A device that can read from and write on a floppy disk. Floppy disk drives are either built into the system unit or are external to the system unit and connected to the computer via a cable. |
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The time required to access and retrieve data. |
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