The fundamental units of the microprocessor is the trat sistor- the on/off, zero/one switch that is at the heart of the digital computer. The ke to improving the performan of a microprocessor is to increase the number of transistors;the more powerful the micrs processor. In n 1965GordonMoore, the founder of Intel, predicated that transistor derties would continue to doub every 1`8 months, a prediction that has held, and that accounts for the incredible increase in computer powe.