1. central processing unit (CPU)
Central processing unit (CPU: Central Processing Unit) or usually called micro-processors. Is responsible for processing the data in such a way of calculating and comparing it to work by a certain time rhythm. When the Clock signal is called a beat once, it will happen once activity we call unit used to measure the speed of the CPU as "hoet" (Herzt) Refers to the work many times in how many CPU Pentium4 1 sec, with speed 2.5 GHz means working fast 2500 million. In one second. If the Clock signal quickly, it will make the computer. High speed accordingly. CPU running very fast, prices would be much more expensive, according to. Buying will have to buy to suit the tasks that need to be used, for example, want to use sesame seeds that birds are processed. Need to use tools that are quickly processed. Best printing the report, general use 100 MHz speed is sufficient.