History of Computers

Evolution of computer is beyond comparison. Something extra ordinary, It hard to believe that we will achieve so much in this field in this small time interval. In this blog we are going to discuss about some of those most important event in history of computes. 

1. 1950 : Vacuum Tubes 
takes lot of energy. 

2. Later 1950 : Transistors 
Same functionality as vacuum tubes but takes less space and energy using semiconductor. Transistor radio. 

3. 1960 : The Integrated Circuits (IC)
millions of tiny transistors in small board. 

4. 1970 : The Personal Computer 
Datapoint 2200 first personal computer. 

5. 1975 : Altair 8800. New Basic language. Microsoft Bill Gates and Paul Allen.

6. 1976 : Steve Jobs and Steve Wozniak started Apple. Single-circuit board. 

7. 1981 : IBM Model 5150 with 4.77MHz Intel processor and Microsoft's MS-DOS operating system. 

8. 1983 : Apple's Lisa with graphic user interface (GUI). Mouse

9. 1984 : Apple Macintosh and IBM PC AT color, modem

10. 1986: Compaq introduce the Desktop 386 with intel's 80386 chip for more graphic environment. 

11. 1988: COMP USA 
12. 1989: Age of the Internet yahoo, amazon, google , facebook
13. 1990: email, windows 95
14. 2007: smart phone 
15: The Cloud 


Coding: way to talk with computers.
Machine Code : very low level language which interact with computer resource. 

High level -> Assembly language -> Machine Language -> Memory, CPU, Logic Gates


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