Water is a good solvent of ionic salts because

Match the following?

    Company                             Operating system

Virus comes from

The programs which are as permanent as hardware and stored in ROM is known as

CAD stands for

___________ are rules that exist at several levels in a telecommunication connection.

In ASCII 65 is value of – A

Which of the following defines the rules that govern communication between devices on a network?

Which of the following is used to uniquely identify a record in a database table?

In half- duplex data transmission

In a Computer a byte generally consists of :