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INPUT. DONE BY: OLIVER FAIRCLOURH. exit. Select one of the following options What is input? Categories of Input Pop Quiz. home. exit. INPUT. Input is the process of entering data, commands and instructions into a computer system for processing. This is done by the use of input devices.
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INPUT DONE BY: OLIVER FAIRCLOURH exit
Select one of the following options What is input? Categories of Input Pop Quiz home exit
INPUT • Input is the process of entering data, commands and instructions into a computer system for processing. This is done by the use of input devices. • An input device is a computer hardware that allows data to be input in a computer system. exit
CATEGORIES OF INPUT INPUT CAN BE PLACED IN FOUR BASIC CATEGORIES, NAMELY: • KEYBOARD ENTRY DEVICES • POINTING DEVICES • SOURCE DATA ENTRY DEVICES • MULTIMEDIA INPUT DEVICES exit
KEYBOARD ENTRY DEVICE This is the most important input device. This device is mainly used for typing, performing calculation on a computer or playing games. exit
POINTING DEVICES • This type of input is mainly used to move a pointer (cursor) on a screen. Pointing devices may also be used to select, drag, or double-click things. exit
Trackball Touchpad Light pen Touchscreen Joystick exit
SOURCE DATA ENTRY DEVICES These devices are used to collect data at the source and send it directly to the computer, thus eliminating the possibility human errors in data entry. These devices include: Optical Character Reader OCR, Barcode Reader, Magnetic Ink Character Reader (MICR), Optical Mark Reader, Scanner. exit
Examples of Source Data Entry Devices OMR MICR Scanner Barcode Reader exit
MULTIMEDIA INPUT DEVICES • Multimedia refers to a mixture of sound, picture, voice and video. • Sound Input Devices • digital camera, web cam etc. • Voice Input Devices • microphone, digital camera etc. • Video Input Devices • web cam, digital camera etc. exit
Multimedia Input devices Digital camera Microphone Web cam exit
POP QUIZ • WHAT IS INPUT? • Process of displaying data • Process of storing data • Process of entering data and commands in a computer • Process of saving data to a computer system
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2. How many categories of Input devices are there? a) 2 b) 3 c) 4 d) 5
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3. The four categories of input devices are: a)keyboard entry, pointing devices, source data entry and multimedia input b) soft copy, hardcopy, plotter, wireless, c) input, output, processing, storage d) multimedia input, source data entry, sound input, MICR
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4. What category of input is the computer mouse, trackball, touchpad and joystick under? a) Keyboard Entry b) Source Data Entry c) Multimedia Input d) Pointing Devices
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4. What category of input is the Keyboard under? a) Keyboard Entry b) Source Data Entry c) Multimedia Input d) Pointing Devices
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5. What category of input does the microphone belong? a. Keyboard Entry b) Source Data Entry c) Multimedia Input d) Pointing Devices
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6. To what category of input does the scanner belong? a. Keyboard Entry b) Source Data Entry c) Multimedia Input d) Pointing Devices
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