Computer Basic Information
First generation computers are characterised by

Magnetic tape and transistors
Minicomputers
Vacuum tubes and magnetic drum
All of these
None of these

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

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

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

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