Which component of a computer is responsible for executing instructions and performing calculations?

Which component of a computer is responsible for executing instructions and performing calculations?

• A. RAM
• B. CPU
• C. Storage device
• D. Network Card

Answer: (B)

The CPU is the component that executes instructions and performs calculations. It carries out the steps of programs by fetching instructions from memory, decoding what needs to be done, and then performing the required operations, often with the arithmetic logic unit handling calculations. This cycle—fetch, decode, execute—happens rapidly and drives all the processing your computer does. RAM, by contrast, is fast temporary storage that holds data and instructions while the computer is running but doesn’t execute them itself. A storage device (like an HDD or SSD) stores data long-term and is too slow to be the active executor of instructions. A network card enables communication with other devices over a network and likewise does not perform internal computations.

The CPU is the component that executes instructions and performs calculations. It carries out the steps of programs by fetching instructions from memory, decoding what needs to be done, and then performing the required operations, often with the arithmetic logic unit handling calculations. This cycle—fetch, decode, execute—happens rapidly and drives all the processing your computer does. RAM, by contrast, is fast temporary storage that holds data and instructions while the computer is running but doesn’t execute them itself. A storage device (like an HDD or SSD) stores data long-term and is too slow to be the active executor of instructions. A network card enables communication with other devices over a network and likewise does not perform internal computations.