What is the difference between alu and cpu

The output, on the other hand, consists of a result of operations which is also recorded in a storage register. The ALU has a designated storage area for input operands, additional operands and accumulated results as well as shifted results. All the bits and operations performed flow through gated circuits into the sub units of the ALU. The Central Processing Unit is by far the most crucial part of the computer without which it will not function at all.

Known by several other names such as brain, micro processing unit and central processor it carries out all logical operations. It resembles quite closely to the human brain in terms of functionality. The operations of the computer are carried out primarily in the CPU. The basic process of the CPU is quite simple; you enter commands by using the keyboard which is read by the CPU as binary codes 0 and 1 , these instructions are sent to the registry and then interpreted and carried out by the CPU.

The results are then sent back to the CPU which comes out as output. CPU or commonly known as a processor handles instructions to perform various tasks of the computer. ALU handles arithmetic and logical operations. The CU that stands for the Control Unit regulates and synchronizes operations of the computer. And it consists of programmable registers and other electronics. Therefore, it fetches instructions from memory, decodes them and directs them to various units to perform the required task.

Memory is an important component for the CPU to function properly. It provides the instructions for the CPU to perform, and also a fter data processing, the result goes back to the memory for storing. Furthermore, the other components that CPU relies on are system clock, secondary storage, data and address buses. CPU can process 32bit instructions or bit instructions depending on the computer architecture. Usually, CPU has a high data transferring capacity.

Further, the clock speed indicates the number of instructions it can process within a second. Most processor chip manufacturers now offer multi-core processors. A processor core contains the circuitry necessary to execute instructions. The operating system views each processor core as a separate processor.

A multi-core processor is a chip with two or more separate processor cores. Two common multi-core processors are dual-core and quad-core. The processing unit that performs the actual execution is called the core.

A CPU can process a 32bit or 64bit instructions depending on computer architecture. Modern computer systems have multiple CPUs speed up the overall computation speed. The main objective of ALU is to perform arithmetic and logical operations.

Addition, subtraction, division are some examples of arithmetic operations. Logical operations are used to find the logic of the statements such as true or false.

The operation of a simple addition of two integers using the ALU is as follows. The ALU receives two integer operands.