JAMIA 2026 — Computer PYQ

Correct Answer: (c) ALU

Detailed Explanation

• Peripheral Devices: A peripheral device is an auxiliary hardware component used to put information into and get information out of a computer. These devices connect externally to the computer system casing but are completely separate from the core processing architecture (the CPU and main memory). Peripherals can be categorized as input, output, or storage devices.

• ALU (Arithmetic Logic Unit): The ALU is an internal, core subsystem of the Central Processing Unit ($\text{CPU}$). It performs all basic arithmetic operations (such as addition, subtraction, multiplication, and division) and logical comparisons (such as $\text{AND}$, $\text{OR}$, and $\text{NOT}$).

• Core vs. External: Because the ALU is built directly onto the silicon microprocessor die alongside the Control Unit ($\text{CU}$) and registers, it is a primary processing component rather than an external or auxiliary peripheral:

  $$\text{CPU}=\text{ALU}+\text{CU}+\text{Registers}$$