Step by step tutorial on how to build your own computer. You can also buy the tutorial from this site. The only down side is it's print only, no pictures.
This site offers a free video series for building and upgrading a pc. Good if you are just getting started in the IT field or are interested in building your own system. It gives you the basics
Great pdf download for detailed specifications on the ATX MOTHERBOARD. In pdf format for easy download, gives great detailed information about the ATX.
The registration is free and painless, just enter your name (doesn't have to be full name), email, and country. You will then be directed to the pdf download page where you can download ALL the exam objectives for free. The objectives are the keys to passing your exams. Know the material covered on the objectives, study hard, know how to implement the knowledge and you will do great on your exams. Good luck to all of you.
This has plenty of video lecture collection on all sciences. some of them are programming, electronics, computers, Mechanical, DSP, Wireless, DIP, Networking, Mathematics, Physics, Chemistry, Medicine, Biology, Psychology, Physiology, anatomy, aerospace, web designing,economics, Business, Leadership, Management etc..
Wonderful site explained how to build a computer with pictures and this site explained each part. You can jump to any part you want to learn about. If you are new to computers, this site is a great learning tool.