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10 Cards in this Set
- Front
- Back
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What are the three units of the CPU?
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1) Arithmetic Logic Unit (ALU)
2) Control Unit 3) Memory Unit |
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What are input devices? What are some examples of input devices?
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They allow the input of data into the computer. Examples: keyboards, mice, scanners, cameras etc.
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What is a pixel?
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A single colored square on the screen. When they are joined, an image can be viewed.
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How does resolution relate to pixels?
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Resolution defines the clarity of the image on screen. It is measured horizontally & vertically. If the screen resolution is 800 X 600, there are 800 columns of pixels horizontally and 600 rows vertically.
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How is the brightness of a projector measured?
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Lumens
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What is the purpose of a port?
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It is an opening that allows a device to communicate with the computer.
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What is a classroom response system?
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A handheld device that allows students to wirelessly respond to questions and relays the information to the teachers' laptop to produce a histogram of answers.
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What are the benefits of using classroom response systems?
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1) Educators can get more reliable answers to awkward questions that might go unanswered. 2) It is a way to get instant feedback, 3) and a feel for the depth of understanding of information.
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What is the difference between random access memory (RAM) and read-only memory (ROM)?
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RAM is temporary memory that holds new data and is only available while the computer is turned on. ROM is permanent internal memory inside the system that cannot by accessed by the user. ROM is used to store the instructions that are programmed at the manufacturer.
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What are the memory conversions for computer memory measurements?
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Kilobyte = 1024 bytes
Megabyte = 1024 kilobytes Gigabyte = 1024 megabytes Terabyte = 1024 gigabytes |
