Without the CPU, data cannot be imported, manipulated, or pumped out to other parts of the computer. The language that is used to interpret all this information is called assembly language.
All machines have a CPU of some sort.
Many common household items have computers inside them today, from coffee makers to microwaves. Learn more how a CPU works by going to Brian Marshall's site on How Microprocessors Work . Read various perspectives about the CPU and where it might be heading at Microprocessor Report - Editorial Index 2. Think about CPUs in all the various machines in our lives. These tools can range from washing machines and microwaves to cell phones and stereos.