Operating System (OS)
The powerful text editor called PC-Write can be used by anybody by paying a small fee. Such programs are called

Firmware
Mindware
None of these
Software
Shareware

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Operating System (OS)
Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because

they are partly in primary memory and partly on disk
they are initially stored on disk
they are available on magnetic tapes
they are memory resident
None of these

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