Computer processors are probably the most important part of the machine. The word "processor" is an extremely common term these days, but it is actually a shorthand way of referring to a computer's CPU (central processing unit). The CPU is the part of a computer that carries out all the instructions in PC programs (software). It can be helpful to think of a processor as a translator for the language of computer programs. The processor and various programs are constantly communicating with one another; their conversation produces a working, user friendly PC. Processors are not just for computers. They can be found in many electronic devices such as cell phones, digital cameras, and Mp3 players. Some cars even utilize processors, especially in GPS systems. Many people recognize the name Intel, whose company name has become synonymous with processing technology. Intel created the first processor back in 1971, and has never looked back. IBM capitalized on Intel's innovation when they created the first personal computer in 1980. It contained a 16 bit processor, which though cutting edge for its time was incapable of multi-tasking. Since that time, the technology has since improved by leaps and bounds, but Intel remains at the top of the processing game. Other prominent manufacturers include Motorola, AMB, IBM, and Cyrix. Apple currently makes its own processors as well.

As a general rule, the faster the processor, the better the computer's overall performance. Processor speeds are measured in gigahertz (GHz), which is a unit of measuring ultra-high frequency electromagnetic waves. A single gigahertz is equal to one thousand million hertz! However, speed is not the only thing to consider when deciding which processor to purchase. Computer sales technicians are available to assist consumers on the lookout for a new processor, but there are some things buyers should consider before even walking into a retail establishment. First off, prospective buyers should determine how many programs they typically run at once. Users who run four or more programs simultaneously will probably be happier with a super fast processor. The same can be said for users who download lots of movies, tv shows, on-line games, etc. People who are members of file sharing social networks would also benefit from a superior processor. What's more, those who produce their own music or videos from their personal computers ought to consider pricier processors. For everyone else, an average speed processor should get the job done without making a huge dent in the wallet.