The brain of the computer is called the Central Processing Unit (CPU).
The CPU is often referred to as the brain because it is responsible for processing instructions from programs and performing calculations. It takes inputs, processes them according to the program instructions, and produces outputs. The CPU executes basic arithmetic, logic, controlling, and input/output operations specified by the instructions.
Just like how your brain controls your body’s functions, the CPU controls the operations of the computer, making it a crucial component for its performance. Without a functioning CPU, a computer cannot execute tasks or run applications, rendering it useless.