Which part of the CPU that can execute instructions independently is commonly called the core?

Which part of the CPU that can execute instructions independently is commonly called the core?

• A. ALU
• B. Core
• C. Registers
• D. Cache

Answer: (B)

The key idea is that a CPU core is an independent execution unit. Each core can fetch, decode, and execute a stream of instructions by itself, so a multicore processor has several such units working in parallel to handle multiple tasks at once. Inside a core you’ll find components like the ALU, registers, and control logic, all of which support the execution, but they don’t run programs on their own. The ALU handles arithmetic and logic operations, registers store data temporarily, and cache speeds up access to frequently used data. But the unit capable of running an instruction sequence independently is the core, which is why this is the best answer.

The key idea is that a CPU core is an independent execution unit. Each core can fetch, decode, and execute a stream of instructions by itself, so a multicore processor has several such units working in parallel to handle multiple tasks at once. Inside a core you’ll find components like the ALU, registers, and control logic, all of which support the execution, but they don’t run programs on their own. The ALU handles arithmetic and logic operations, registers store data temporarily, and cache speeds up access to frequently used data. But the unit capable of running an instruction sequence independently is the core, which is why this is the best answer.