The main unit is a unit of computer storage that is designed to save the data, and the computer's processor can be divided into 2 categories, read only memory ROM, and random access memory RAM.
The main unit of the computer unit is designed to collect and record the computer's processor can be classified into two types, read only memory ROM. And random access memory RAM.
Primary unit is a unit of a computer designed to collect and record the data processing of the computer can be divided into 2 type read only memory ROM Random access memory, and RAM