What is the computers brain referred as?

Answer 1

It has several names. The correct phrase is the 'CPU' or 'Central Processing Unit', sometimes called Processor for short.

It is NOT correct to call the entire computer chassis/case/tower (the big box thing, without monitor, keyboard, etc.) a CPU, or Processor, because the chassis/case/tower typically contains at least two processors and may have more than one dozen.

The CPU is the main processor, which is what you hear whenever someone talks about Intel and AMD, 'Gigahertz', 'Cores' and such. It's the most integral part of a system's function. Without it, NOTHING works.

Answer 2

The computers brain is referred to as the Central Processing Unit (CPU).
heart and brain of computer can simply be referred to as the central processing unit (CPU) of a given Computer. This is where the activities modulate within there programmed compact-ability in respect to the link between the software and the Hardware. The unit at which the input is recognize, stored, processed and then make available for/as an output.

Comparing the processor to a brain doesn't really work, though. A computer is not a brain, and they don't even work in similar ways. The CPU is more like your digestive tract. It processes what you put in it. There's no actual thinking involved. Just processing.

The heart is what empowers other bodyparts to do their jobs. In a computer, that would be the PSU, Power Supply Unit. It takes the wall socket power and converts it to all the voltages, amperages and sockets your various components need.