Central Processing Unit or CPU

You must know that so-called Central processing unit, or CPU,
CPU in charge of controlling the computer so that synchronization occurs antarkomponen work in running the operations functions. included in the control unit is the responsibility of taking instructions-instructions from main memory and determine the type of instruction. If there are instructions for arithmetic or logic comparison, the control unit will send instructions to the ALU. The results of processing the data carried by the control unit to the main memory to be stored, and in time will be presented to the output device.

Thus the task of the control unit are:
Regulate and control input devices (input) and output (output).
Taking instructions from main memory.
Retrieve data from main memory (if required) for processing.
Send instructions to the ALU if any arithmetic or logical comparisons and oversees the work of the ALU.
Save the results into the main memory.
Register is a small storage device that has high speed access, which is used to store data and / or instructions are being processed. This memory is temporary, usually used to store data on if or when the data for subsequent processing. By analogy, these registers can be likened to a memory in the brain when we do data processing manually, so the brain can be likened to the CPU, which contains the memories, the control unit that governs all activities of the body and having a place to perform the calculation and comparison logic.

ALU unit is tasked to perform arithmetic operations and logic operations defined by the instruction. ALU is often called the machine language for this section ALU consists of two parts, the unit arithmetika and boolean logic units, each of which has its own job specification. The main task of the ALU is performing all arithmetic calculations that occur in accordance with the instructions of the program. ALU does all the basic arithmetic operations so that the sum of the electronic circuit used is called adder.

Another task of the decision of the ALU is to perform a logic operation according to the instructions of the program. Logic operation involves the comparison of two operands by using a certain logical operators, which is equal to (=), not equal to (¹), is less than (<), less than or equal to (£), greater than (>), and greater or equal to (³).
Interconnections are the CPU and bus connection system that connects the internal components of the CPU, the ALU, control unit and registers, and also with external buses connecting the CPU with other systems, such as main memory, the device input / output.