To be honest with you I've never understood people that take the A+ and the like. Why you wanna fiddle with your hardware anyway? Changeing discs, processors and ordinary maintenance work can be done without something like A+. Trust me, I know **** about hardware and I've never found it to be a problem.

What I'm saying is that you're wasting your time by learning the inner workings of your PC. I'm a professional programmer and have been so for the last four years. I've never once opened up my work computer. If something needs changeing I call for a sysadmin a tech-wonk or someone qualified.

I do think learning TCP/IP is a good thing though. I guess it's the security scene you're trying to get into?

Cheers,