Arithmetic logic unit I. perform arithmetic operations II. store data III. perform comparison IV. communicate with input devices from above the correct one is

The correct answer is C. I and II only.

The arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations on numbers. It is one of the fundamental building blocks of the central processing unit (CPU) of a computer.

The ALU performs the following operations:

• Addition
• Subtraction
• Multiplication
• Division
• Logical AND
• Logical OR
• Logical NOT

The ALU does not store data. Data is stored in the CPU’s memory.

The ALU does not communicate with input devices. Input devices are connected to the CPU through the input/output (I/O) bus.

The ALU is a very important part of the CPU. It is responsible for performing the basic operations that are necessary for the CPU to function.