1. the central processing unit, or CPU (Central Processing Unit: the CPU) acts as a central control system works on all computers. With data from a data retrieval devices at work. Data processing based on program's command and send the results out to the display unit.2. memory (Memory) can be divided into sections is memory that is intended for the main program (Program Memory) compared the desktop computer's hard disk, any data that is stored in the list is not lost even if there is no fire party. Another part is data memory (Memory Data) using the same test more than generous in the calculation of the CPU and a temporary information while you are working, but if you don't have a light dinner, it will be lost is similar to the memory RAM (RAM) in your computer in General. But for a modern microcontroller memory data memory as RAM. That data will be lost when there is no fire and as an e-blessing (EEPROM: Electrically Erasable Mempry Read-Only), which can store information even if power is fed.
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