Port problems

I have several questions that I need to be answered please:

What are ports?
What is TCP and UDP?
Can we delete certain ports safely?

Because I was using NIS2010 and I had enough of it. I uninstalled it. I even ran the Norton Removal Tool. But there is still traces of it. Ports. I dont want to be connected with or through Symantec whatsoever can anyone help me out please. Thanks in advance.

Thanks, but can you tell me how to disable ports? Like the norton ports I'm having.

yes, that's the one, but it did me no good, the ports still there, even IE8 and YM using their ports. and it's slooow.

Have you tried going to the Windows Firewall in the control panel and unchecking the Norton stuff that you don't want to access the internet?

Jacee said:

You might also want to take a look at this to manually complete the uninstallation
How to manually uninstall WinFax PRO or TalkWorks PRO

but I never use WinFax PRO nor TalkWorks PRO.

SomeITGuy said:

Have you tried going to the Windows Firewall in the control panel and unchecking the Norton stuff that you don't want to access the internet?

I disabled windows firewall, I'm using Kaspersky firewall built-in in Kaspersky Internet Security 2010.

Don't mind, I've found the solution through searching on google. However I thank you all for your efforts and will to help me. Thanks