Correct Answer:
A. Arithmetic Logic Unit
This question tests knowledge of a fundamental component within a computer's Central Processing Unit (CPU).
- Arithmetic Logic Unit is the correct full form of ALU. The ALU is a crucial part of the CPU responsible for executing all arithmetic operations (like addition, subtraction, multiplication, and division) and logical operations (such as AND, OR, NOT, and comparisons). It is where the actual computation and decision-making within the computer take place.
- Array Logic Unit is incorrect. While 'array' is a term used in computing, it does not represent the 'A' in ALU.
- Application Logic Unit is incorrect. 'Application' refers to software programs, not a core hardware component of the CPU.
- Arithmetic Local Unit is incorrect. While 'arithmetic' is correct, 'local' is not the correct term for the 'L' in ALU; it should be 'Logic'.
Understanding the function of the ALU as the 'brain' for calculations and logical decisions is key to knowing its full form.