Pls help me with web stuff

[Chetan1991]

Hi to all!
Being new to internet I have encountered some stuff which I couldn't understand.So please help me:
What is"cookies"?
What are "pop ups" and what is the need to block them?
What harm Spy-wares pose and is there really a need to install an Anti-Spyware s/w?

[koolbluez]

Cookies
PopUps
Spywares
Enuf xplanation there.

Antispyware can b installed to reduce the chances of any1 spyin ur system.
Alternately, don't install any unknown/uncertified sw in ur system ever... Try to download from Softpedia or some other download sites... who indicate whether the sw is spyware or not.

[Chetan1991]

Thanx koolbluez!