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

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

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Computer Basic Information
Impact printers

include ink-jet and thermal devices
strike a ribbon against the paper to produce character images
are more expensive than Laser printers
None of these
use optical technology

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