The 21st of century, computers technologies is developed quickly. But before detail of this developing we should to know that computers technologies is developed complexly. So, what about histories of computers? How did computers develop until present ?
We knew that the first thing which is similar to computers is Abacus (China).It made us easy to calculate the numbers quickly and honestly and had just Addition and Substraction..
Until the 16 of century, there were calculate machines generated by Mr. BLAIS Pascal (1623-1662). It's called "Pascaline Calculator".In 1673 Mr. Von leibniz is German. He made defferential caculator which is revoluted from Mr. Pascal's calculator.This machine can do another thing like Addition, Substraction, Division, and Multiplication. In 18th century, Mr. Charless Babbage has an idea for creating machine that can calculate complex equation but without success.
Commercial computer system development has followed development of Hardware Technology and is usually divided into four generations.
1. First generation (1945-1955) vacuum tube technology
2. Second generation (1955-1965) transistor
3. Third generation (1965-1980) intergrated curcuit (IC)
4. Fourth generation (1980-??) very large scule intergrated (VLSI) curcuit technology.