Input & Output devices

Keyboard (input)

Could be used to type a letter; easy and fast to use, but could give RSI(repetitive strain injury)

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Mouse (input)

Could be used to click an icon to open up the internet; easy to use with one click action, but could click too many times and confuse the program

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Joystick (input)

Could be used to control the stick of an aeroplane in a computer game; comfortable to use and creates a realistic feeling of control; but could take time to learn how not to jerk the controls and keep the action smooth

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Microphone (input)

Could be used to record revision notes into the computer for playback; fast data entry for those with physical disabilities; but need to speak clearly or playback will be unrecognisable

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Remote Control (input)

Could be used to change the TV channel; can control a device from metres away, instantly; but could be unresponsive, especially if there are objects in the way

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Scanner/ OCR (input)

Could be used to scan a piece of handwritten homework then email to teacher; with OCR handwriting will be converted into typed text; but poor handwriting can be converted into the wrong words

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Digital/video camera (input)

Could be used to take a photograph of a tree; good quality images depending upon the pixel ratio; but could be expensive to buy

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Webcam (input)

Could be used to do online video conversations; participants can both hear and see each other; but smoothness of audio/video is dependent on both user's internet connection

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Touch screen (input)

Could be used to buy a train ticket at the railway station; one digit touch needed, but not good for those users uncomfortable with computer technology

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Interactive whiteboard (input)

Could be used to complete group work in a classroom; many students can take part at once, but board needs to be properly calibrated to work effectively

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Sensor (input)

Could be used on a garage door to activate open and shut; no human intervention needed to open the garage door, but might not work in severe weather conditions

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Barcode reader (input)

Could be used as a label on a book to be scanned when taken out on loan from a library; faster for the librarian as no need to manually input the book title and author, but barcodes can get damaged and will not read by the scanner

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OMR (input)

Could be used to mark answers on a multiple-choice exam paper; quick and easy, but not very readable if lots of mistakes are made

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Graphic tablet (input)

Could be used to draw cartoon characters for animation; drawing with a pen is more realistic than using a mouse. but still requires the user to have a talent for drawing

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Midi instrument (input)

Could be used to record a piece of music for later playback; direct conversion into a digital format, but sound is only as good as the musician or technician

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MICR (input)

Could be used to print numbers on the bottom of a cheque; easily read by a computer, but number can wear off if cheque is folded for a length of time

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VDU (output)

Could be used to view work that has been typed in; instant viewing, but might be fixed in one place

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Dot Matrix Printer (output)

Could be used to print multiple printed pages such as an invoice; can print multiple copies at one time, but could be very noisy

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Inkjet Printer (output)

Could be used to print your schoolwork at home; cheap and good quality printing, but cartridges could be expensive

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Laser Printer (output)

Could be used to print large quantities of work at one time; fast and good quality, but could be expensive to buy and run

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Plotter (output)

Could be used to print large road maps, good at printing in colour and in detail, but could be expensive to buy

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Speakers (output)

Could be used to listen to music from the computer; portable speakers can be carried around, but sound could vary depending upon quality of speaker

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Digital Projector (output)

Could be used to view movies on a large screen at home; enlarging an otherwise small viewing screen, but quality could deteriorate as the screen size is increased

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Actuators/Robotic Arm (output)

Could be used on car-manufacturing robot fitting the windscreen wipers; precision work done with no human errors, but once broken could be expensive to repair

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Lights/Buzzers (output)

Could be used as green light flashing when you pass your entry card over the office entry system; green is a universal colour for 'GO', but light might be visible depending upon external influences such as sunlight

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Computerised Motors (output)

Could be used as air-conditioning unit controlled by a sensor which turns on the unit motor when too hot; no human intervention is needed, but reliance on technology

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Get Revising

Input & Output devices

Other cards in this set

Card 2

Front

Back

Card 3

Front

Back

Card 4

Front

Back

Card 5

Front

Back

Comments

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Other cards in this set

Card 2

Front

Back

Card 3

Front

Back

Card 4

Front

Back

Card 5

Front

Back

Comments

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Similar ICT resources: