Need a new PC! Can't find a system that offers just what you want? Join the club, nor can most of us. Pre-built systems are at best, a compromise between what the manufacturers want to sell you and what you want to buy. The solution is to build it yourself.
Building a PC yourself offers many advantages. You will have a PC that is tailored to your exact requirements with no superfluous features that will never be used. Also, by buying the parts yourself you will know they are of adequate quality and capable of doing what they are intended to do. You can design the system so that it can be expanded and upgraded as and when new technology becomes available. You will have total control over price.
You may, however, be thinking "Can I do this, computers are complex machines?" Well, if you can read and can handle a screwdriver, the answer is yes. The only other thing you'll need is a copy of Building a PC in easy steps. This book explains what you will need, the best places to buy your parts, how to install them and what to do in the event of problems."
A really good entry level book that describes computer components, what you need to know in selecting them, and how to put everything together.
I learned a fair amount about some of the technologies related to the various components, and had several acronyms that I didn't know explained to me.
If you're going to read this with the intent of putting together a PC, try to get the latest edition possible. Technology continues to move. The 4th edition that I read was 5 years out of date, and there were areas where the book wasn't as current as it could be.
This is a pretty good book and it covers the material fairly well. It's obviously a huge topic and the book does not attempt to be exhaustive, instead focusing only on the most-common aspects and issues. Text is laid out well, writing is good, and numerous color photographs help. Book sticks to the most-common hardware and most-common applications. In general, equipment is divided into entry-level, mid-level, gaming, and server/workstation equipments. Heavy focus on mid-level and gaming systems. Old (5+ years) hardware is not considered--basically starts with Intel i Core systems, DDR2 memory, SATA-2 drives, USB3 devices, etc., with occasional explanations of still-common older technologies like firewire and VGA. Compares Intel and AMD CPUs. Compares Nvidia and AMD GPUs. Very brief coverage of common peripherals such as printers and scanners. Includes a brief troubleshooting section and index.