71.
The ______ cells involve creating a single cell by combining two or more selected cells.

72.
The operating system is the most common type of ______ software.

73.
When you quickly press and release the left mouse button twice, you are :

74.
Protocols are

75.
Measuring unit of capacity of hard drive is-

76.
A disk's content that is recorded at the time of manufacture and cannot be changed or erased by user is -

77.
In an information system, alphanumeric data normally takes the form of-

78.
What is usually used for displaying information at public places?

79.
The real business and competitive value of information technology lies in:

80.
ALU is termed as-