Calculation program (PC)This counter incrementing track memory address instruction is to execute the next, or in other words, put the address of the next executed command.Memory address register (3)Put a piece of memory for reading or writing to the address.The memory data register (MDR)Recorded data contains data from two directions (available memory and CPU processing data) or stored in memory. (this is also known as the memory buffer (MBR registration).)Register (IR instruction)A temporary following instructions from memory.Control unit (ancient)Decoding program IR teach, select computer resources, such as registering a data source and a special mathematical algorithm, coordinate the activities of cultural resources.The arithmetic logic unit (ALU)Performs arithmetic and logical operations.
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