This is 2 hours video (tutorial) which gives you very useful information about the change in computer components and the changing in technology; how to build and repair your computer almost without needing any help.
Scott Mueller is president of Mueller Technical Research, providing the industry's longest running, most in-depth, accurate, and effective corporate PC hardware and technical training seminars. MTR maintains a client list that includes Fortune 500 companies, the U.S. and foreign governments, and major software and hardware corporations, as well as PC enthusiasts and entrepreneurs. Scott has developed and presented training courses in all areas of PC hardware and software. He is an expert in PC hardware, operating systems, and data-recovery techniques.