Evolution of computer
Computers are one of the greatest inventions in this world. Computers are a revolutionary. Earlier computers were used for calculation, but now everything is changed. Now we can use computers for everything. The journey of computer stars from: 1. Abacus: Many centuries ago when man started to count the numbers, he thought of a device that can trace the numbers, and thus came the existence of the ABACUS. It was the first counting device that was developed in China more than 3000 years ago. The name Abacus was obtained from the Greek word Abax which means slab. This device basically consists of a rectangular wooden frame and beads. The frame contains horizontal rods and the beads which have holes are passed through the rods. Counting was done by moving the beads from one end of the frame to the other. 2. Napier’s Bones: It is a device that contains a set of rods made of bones. It was developed by John Napier, a Scottish Mathematician and hence the device was named Napier’s Bones