Computer Basic Information
What is the name of the reading device which mades use of photosensors and laser technologies to interpret printed, typed or even hand-written data directly from the source documents?

None of these
ATM
OCR
MICR
Mark-sensing device

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Computer Basic Information
Why is the width of the data bus so important to the processing speed of a computer?

The data bus isn't important to the processing speed of a computer
The narrower it is, the greater the computer's processing speed
The wider it is, the slower the computer's processing speed
The wider it is, the more data that can fit into main memory
The wider it is, the greater the computer's processing speed

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Computer Basic Information
The term USER INTERFACE refers to-

All of these
How the operating system responds to user commands
What the user sees on the screen and how they interact with it.
The means by which the user interacts with peripheral devices on the computer.

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