Chapter 3. The CPU

The central processing unit, or CPU, is quite often referred to as the “brain” of the computer. Today’s CPUs are like superbrains! A typical CPU today runs at 3GHz or higher, use two or more cores, and some can easily process 50 billion operations per second. That’s a good deal more than we would have seen just 5 years ago. Some mornings I have trouble processing the thought need coffee! Of course we know that the human brain is much more sophisticated ...

Get CompTIA A+ Exam Cram, Fourth Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.