21.
Save operation means

22.
CAD software is most likely to be used by

23.
A spooler is a

24.
The problem with .... file is that they slow your computer's operation

25.
User action such as keystroke or mouse click are referred to as

26.
Which is not external command?

27.
What is the method of handling deadlocks?

28.
To delete a file without allowing it to store in recycle bin

29.
Operating system is a ......

30.
To display a shortcut menu for an object you use

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