Achievement#4 History of Computer.

Assalam u Alaikum everyone users of steemit.I hope you all good health and pray you live always happy.So I tell you in my fourth post about history of computer.I tell in this post with detail history of computer how and who invented the computer.So let's start:
Computer is invented slowly to the generation by generation.
First Generation of computer:
In the first generation period of computer is started to the 1945-1959.The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU (Central Processing Unit). These tubes, like electric bulbs, produced a lot of heat and the installations used to fuse frequently.Scientists worked out of the computer by make more expensive because in the first generation computer has very large size and they not more features.

Second Generation of computer:
The second generation of computer between 1959-1965 computer which makes use of discrete transistors in place of vacuum tubes. the first era of electronic computers used vacuum tubes, which generated large quantities of heat, had been cumbersome and unreliable.It is the small and more features than first generation of computer.

Third generation of computer:
The period of third generation was from 1965-1971. The computers of third generation used Integrated Circuits (ICs) in place of transistors. A single IC has many transistors, resistors, and capacitors along with the associated circuitry. This development made computers smaller in size, reliable, and efficient.

Fourth generation of computer:
The fourth technology changed into from 1971-1980. Computer structures of fourth generation used Very large Scale covered (VLSI) circuits. VLSI circuits having about 5000 transistors and distinctive circuit factors with their related circuits on a unmarried chip made it viable to have microcomputers of fourth technology.

Fifth or present generation of computer:
In fifth generation of computer we in now computers it is more expensive and very small sizes and more' and more features.

So, today my this post I hope you like my post and give votes me maximum.