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Computer Basic Information

Computer Basic Information
When a disk stack is serviced by a comb-like access mechanism, there is one read/write head for each

None of these
track
disk
disk surface
cylinder

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Computer Basic Information
The bar code which is used on all types of items, is read by a scanning device directly into the computer.What is the name of this scanning device?

Laser scanner
OCR
None of these
Wand
MICR

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Computer Basic Information
A byte represents a group of

40 bits
8 bits
22 bits
10 bits

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Computer Basic Information
Which one of the following is termed a combination input-output device?

Keyboard
Printer
Laser Jet
VDT
None of these

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Computer Basic Information
The size of commonly used floppy disk is

3.25"
3.5"
4.5"
5.5"

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Computer Basic Information
Which of the following is a communication network that is devoted to carrying computer information.

Data pack
None of these
Data network
Data point
Data module

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