Correct Answer - Option 4 : ALU
An arithmetic logic unit (ALU): It takes care of all processes that are related to arithmetic and logic operations that are done on instruction words. In some processors, the arithmetic logic unit is further categorized into two units, an arithmetic unit (AU) and a logic unit (LU).
Following are the functions of ALU:
Arithmetic Operations: basic addition and subtraction. Addition can be substituted for multiplication and subtraction for the division.
Logical Operations (Includes comparison): NOR, NOT, OR, XOR, etc.
Bit shifting Operations: It means shifting the position of bits by a certain number of places to either the left or right, which is considered an operation of multiplication.
There are 2 parts of the central processing unit (CPU), the arithmetic logic unit (ALU), and The control unit (CU).
The control unit (CU): It informs the arithmetic and logic unit, the computer’s main memory, and the output and input devices the way to respond to the instructions that have been sent to the CPU. The control unit is considered to be the processor brain because it orders to everything and ensure that the best results are produced.
Interprets instructions, regulates, and controls processor timing.
Directs data flow through different components of the CPU.
Handle tasks such as decoding, fletching, executing the command, and storing results.
Sends and receives control signals from other computer gadgets.
Directs sequential data flow.
Interprets commands and instructions.
