From the following options, identify the correct full form of ALU, which is a…

Concept: In the standard CPU model taught here, the Arithmetic Logic Unit (ALU) is the sub-component responsible for arithmetic operations (such as addition, subtraction, multiplication, and division) and logical/comparison operations (such as AND, OR, NOT, XOR, and relational comparisons) required by an instruction.

Application: Matching each option's wording to this definition, "Arithmetic & Logical Unit" is the only option that names the two operation classes (arithmetic and logical) that this component actually performs. "Automated", "Augmented", and "Advanced" each describe an unrelated quality (automation, enhancement, sophistication), not the arithmetic-and-logic function.

Contrast:

• Automated Logical Unit — "Automated" describes automation/self-operation, not the arithmetic-and-logic function.

• Augmented Logical Unit — "Augmented" describes enhancement/addition, not the arithmetic-and-logic function.

• Advanced Logical Unit — "Advanced" describes sophistication, not the arithmetic-and-logic function.

Cross-check: In the standard CPU model taught here, the ALU is the unit responsible for the processor's arithmetic operations (add, subtract, multiply, divide) and logical/comparison operations (AND, OR, NOT, compare), confirming the arithmetic-and-logical description — though some advanced processor designs route certain operations like multiplication/division through a dedicated execution unit rather than the core ALU. Note: Indian computer-awareness material commonly writes ALU's expansion as "Arithmetic and Logical Unit", while many international texts write "Arithmetic Logic Unit" — both name the same functional unit inside the CPU.