What is micro?

In the late 1960’s, processors were built using discrete elements.
These devices performed the required operation, but were too large and too slow.

In the early 1970’s the microchip was invented. All of the components that made up the processor were now placed on a single piece of silicon. The size became several thousand times smaller and the speed became several hundred times faster. The “Micro”Processor was born.it's known as micro.