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Computer Basic Information

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

Keyboard
VDT
None of these
Printer
Laser Jet

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Computer Basic Information
The _____ key will launch the start buttons.

Esc
None of these
Shortcut
Windows
Shift

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Computer Basic Information
Sequential file organization is most appropriate for which of the following applications?

None of these
grocery-store checkout
airline reservations
bank checking accounts
payroll

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Computer Basic Information
An impact printer creates characters by using?

Electrically charged ink
An ink pen
All of these
An inked ribbon and print head

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Computer Basic Information
The disadvantage of dynamic RAM over static RAM is

higher bit density
variable speed
None of these
higher power consumption
need to refresh the capacitor charge every once in two milliseconds

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Computer Basic Information
What is the name of the earliest calculating machine which was based on concepts found in modern computers but was unfortunately never built?

Babbage's Difference Engine
Pascal's Adder
Differential Analyser
None of these
Leibnitz's Multiplier

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