MS - DOS is an example of ______ operating system.
System Software
Multi - user
Single - user
None of these
Which are the most common icons on the desktop?
All of these
The icons on the desktop represent a program or _________.
Hardware
Software
Both a & b
Start button will display a ______.
Submenu
Menu
________ is a software which enables the user to interact with the computer.
Single - user System
Operating System
