Computer Basic Information
The barcode 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?

OCR
MICR
Wand
Laser scanner
None of these

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Computer Basic Information
The MS-DOS operating system is a .....

graphical user interface, single-tasking operating system
graphical user interface, multi-tasking operating system
command-driven interface, multi-tasking operating system
command-driven interface, single-tasking operating system
None of these

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