Optical scanners:use the technology of light to capture data from its source into machine under stable
form.Include:Optical mark reader(OMR),Optical bar reader(OBR) and Optical character
reader(OCR).
Magnetic scanner:Use the technology of magnetism to capture data from its source into machine under stable
form.include:Magnetic ink character reader(MICR)and Magnetic strip reader (MSR).
isaacmuthini answered the question on December 4, 2017 at 12:11
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Highlight 3 differences between a keyboard and a keypad.
(Solved)
Highlight 3 differences between a keyboard and a keypad.
Date posted:
December 4, 2017
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Answers (1)
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(Solved)
State the major classifications of input devices.
Date posted:
December 4, 2017
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What are input devices?
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What are input devices?
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December 4, 2017
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What is a computer system?
Date posted:
December 4, 2017
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Define the term system.
Date posted:
December 4, 2017
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Describe what happens when the following key combination are pressed simultaneously: CTRL+ALT+DEL, SHIFT+ ?
(Solved)
Describe what happens when the following key combination are pressed simultaneously.
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Date posted:
December 4, 2017
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Answers (1)
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Outline the main steps that take place when one cold boots a computer.
Date posted:
December 4, 2017
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(Solved)
The mouse has two basic buttons.State the functions of each button
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December 2, 2017
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(Solved)
Explain three ways on how you would open a folder or file located on the desktop
Date posted:
December 2, 2017
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(Solved)
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Date posted:
December 2, 2017
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Answers (1)
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(Solved)
In the context of selecting files or folders,differentiate between control key and shift key
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
List down the functions of return key.
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
List down two commonly confusing keyboard keys during typing.
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
State seven examples of cursor movement keys.
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
List down the correct steps to be followed when shutting down a computer
Date posted:
December 2, 2017
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(Solved)
List down four groups of keys on a standard computer keyboard
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
Differentiate between spacebar key and tab key
Date posted:
December 2, 2017
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Answers (1)
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(Solved)
Differentiate between backspace key and delete or del key.
Date posted:
December 2, 2017
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List down four examples of special keys on the keyboard.
(Solved)
List down four examples of special keys on the keyboard.
Date posted:
December 2, 2017
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Answers (1)
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Differentiate between cold booting and warm booting.
(Solved)
Differentiate between cold booting and warm booting.
Date posted:
December 2, 2017
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