Someone explain to me the difference between the following internet security terms, please?

Can someone tell me the difference between the following, and what is needed for full protection of my notebook pc:

firewall

spyware removal

adware removal

malware removal

anti-spam

anti-spyware

anti-adware

anti-malware

anti-virus

internet security suites

Okay, so now I have a Kaspersky 7.0 anti virus, Spyware Doctor and am about to install a Comodo Firewall Pro 3.0. Is that all I need for protection? If someone can tell me what are the best programs for protection.

Someone explain to me the difference between the following internet security terms, please?free antivirus

for web browsing I would suggest...mcafee site advisor and link scanner light both are free

Someone explain to me the difference between the following internet security terms, please?internet

firewall:

Can be software or hardware, it inspect the traffic from your computer to internet, and from internet to your computer. Blocks suspicious trafic.

-----------------------------------

Anti-malware, malware removal

As malware, we call any software, that can harm a computer. Any software that can install to a computer and change users DATA called malware. Malware can be spyware, can be ad-aware, can be virus, etc