What do you mean by Spyware and Adware?

Q. What do you mean by Spyware and Adware?

Answer :-

Spyware :-
Spyware is a software which is installed on your computer to spy on your activities and report this data to people willing to pay for it. It tracks the user's behavior and reports information back to a central source. These are used to spy on some one either for legal or illegal purpose.

Adware :-
These are the programs that deliver unwanted ads to your computer (generally in Pop-Ups form). They consume your network bandwidth. Adware is similar to spyware-however, it may be installed with your consent. So it is advised that you thoroughly read installation agreements before you allow installation of a software.