Computer Basic Information
A technique used by codes to convert an analog signal into a digital bit stream is known as

Pulse code modulation
Queue management
Query processing
None of these
Pulse stretcher

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Computer Basic Information
An essential difference between the operating system that runs a typical desktop computer and the operating system that runs a typical PDA is that .......

the desktop OS manages hardware resources whereas the PDA OS does not.
the desktop OS has a graphical user interface whereas the PDA OS does not.
the desktop computer has an OS whereas a PDA does not.
the desktop OS can run several programs simultaneously whereas the PDA OS cannot.
None of these

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