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21 Cards in this Set
- Front
- Back
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What is a Computer System?
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A computer system is one that is able to take a set of inputs, process them and create a set of outputs. This is done by a combination of hardware and software.
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Explain what is meant by the term, ‘input device’
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An input device is a piece of hardware that is used to enter data into a computer or device.
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Give three examples of input devices
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Keyboard, mouse, touchpad, joystick, touch screen, concept keyboard, scanner, graphics tablet, microphone, digital camera, barcode readers or any other suitable input device
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Explain what is meant by the term, ‘output device’
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An output device is a piece of hardware that is used to output data that has previously been entered into a computer or device.
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Give three examples of output devices
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Monitor, printer, plotter, projector, speaker, headphones, light, LED or any other suitable output device
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Explain the purpose of a processing device
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The main processing device in a computer is the central processing unit (CPU). Its task is to process data which has been input into a useful form which can then be output.
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Explain what is meant by the term, ‘storage device’
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A storage device is used to either temporarily or permanently store data which has been entered into a computer or device.
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Give three examples of storage devices
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Hard disk, DVDs, CDs, magnetic tape, flash memory sticks (or any other suitable storage device)
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Explain the purpose of a communications device
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A communications device is a piece of hardware designed to move data from one place to another, usually around a network. They allow one device to communicate with another.
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Give three examples of communication devices
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Network interface cards, wi-fi cards, routers, modems (or any other suitable communications device)
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Explain what is meant by the term, ‘peripheral’
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A peripheral is any hardware device which connects to the computer and is controlled by the CPU (except memory)
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Give three examples of peripherals
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Monitor, keyboard, mouse, printer, projector, scanner or any other suitable example
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Explain what is meant by the term, ‘hardware’
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Hardware refers to any part of the computer that you can physically touch, pick up, hold or move around the room. It is the physical parts of the computer.
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Give three examples of hardware that you would find outside the computer case
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• Monitor
• Printer • Keyboard • Mouse • Microphone • Projector • Headphones Any other sensible suggestion |
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Give three examples of hardware that you would find inside the computer
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• Hard disk
• CPU • Fan • Motherboard • Sound card • Any other sensible suggestion |
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Explain what is meant by the term, ‘software’
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Software are the applications and programming instructions that tell your computer what to do. They enable you to do your everyday tasks such as writing essays, playing games, surfing the internet.
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Give two examples of systems software
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• Operating system
• Utilities • User interface |
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Give two examples of applications software
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• Word processors
• Desktop publishers • Spreadsheets • Databases • Presentation software • Web browsers • Graphics packages • Web design packages • Any other suitable suggestion |
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Explain how data is input into a computer system and made ready for the computer to use.
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Data or commands are entered into the computer system usually via an input device such as a keyboard, mouse, OMR, barcode reader, scanner etc. The input data is converted into digital data that can be dealt with by the computer.
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Explain what happens during the processing stage
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Processing is the stage where the input data is manipulated in order to produce meaningful information.
Processing can include a number of stages such as sorting, searching, calculations, graphing. The results obtained from processing the data can then be used in the next stage, called "output". |
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Explain what happens during the output stage
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Output is the stage where the information obtained via processing is presented to the user in a suitable format. Most outputs involve converting digital data into some physical effect that the person senses with eyes or ears.
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