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10 Cards in this Set
- Front
- Back
CPU
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Central Processing Unit of a computer. It is composed of three units: The control unit (retrieves and sends signals to computer), the arithmetic logic unit (mathematical calculator) and the memory unit (composed of RAM - temporary memory, and ROM - permanent memory).
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Keyboard
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An input device that allows for the input of alphabet, numbers, and computer operational functions.
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Scanner
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An input device that allows printed materials to be converted to a digital format. Flatbed or sheet-fed. Uses OCR (optical recognition software) to convert text.
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Printer
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An output device that transfers digital data to a hard copy. Ink jet or Laser. Resolution is determined by dpi (dots per inch). Higher the dpi, higher the resolution.
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Speakers
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Project sound. Some are made for single use, and some are made for large groups to hear, so considering the type of speaker is important when presenting to a classroom. Although headphones are still required for individual use.
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USB Mini Drives
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Pen, flash, or jump drives. Plugged into USB ports (Universal Serial Bus), not platform specific, and hold from 28 MB to 4 GB of info. They are small, though, and easily lost - always have information backed up!
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Microphone
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Input device. Some computers have them built in, others do not. Connect to the port that is connected to the sound card which allows input of sound.
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Clickers
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Wireless input devices that allow students to respond to questions which the teacher can record and review.
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Monitor
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Screens or Displays. Output device which displays information of what functions the computer is performing.
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Projectors
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Combine an LCD (liquid crystal display) unit with a light source. Displays, like a screen, information of what functions the computer is performing but without the use of a screen.
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