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10 Cards in this Set
- Front
- Back
Advantage n Disadvantage of Keyboards |
-A skilled typist can input data very quickly
Most computers come with a keyboard supplied If you can't touch type, it can be time consuming to enter data |
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Advantage n Disadvantage of using a pointing device
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Easier to access most of the features of the software being used They need a flat space close to the computer |
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Ad n dis of touchpad |
Useful for laptops when using a mouse isnt practical
Moist, sweaty or calloused fingers can disrupt the signals picked up by the sensors |
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Joystick? |
They give a better gaming experience for racing or flying styles of computer games
Some people find joystick dificult to control than a traditional mouse. |
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Concept keyboard |
Much faster for making non-text selections such as menu choices on the till of a fast-food outlet.
Limited to the options shown on the keyboard. |
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Whats a touchscreen? |
You view the options available to you on the screen (output) and you then use your finger to touch the option that you have chosen (input).
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Ad n Dis Touchscreen? |
No extra peripherals such as a mouse are needed
Not suitable for inputting large amounts of data |
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What scanner do? |
A scanner works by shining a beam of light onto the surface of the object that you are scanning. This light is then reflected back onto a sensor that detects the color of the light. This is then used to build up the digital image. |
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Handheld scanner? |
Handheld scanners are usually only a few inches wide and are held in the hand whilst they are rolled across the document to be scanned. The images produced are generally not as large or as high quality as those captured with a flatbed scanner. |
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