a. On pressing the ‘3’ key, the microprocessor (mP) is alerted. It asks the Prefetch Unit to get the instruction. The new data instruction comes into the mP through the Bus Unit, and is stored in the ...

The microprocessor (or 'processor', or 'CPU') is often called the brain of the computer, and for good reason. It's the backbone of any PC, smartphone, laptop, or tablet, performing billions of ...