Bismillahirrahmanirrahim.
I'll start my blog with the history of computer itself. Pretty suitable I guess for this blog is intended for my DNMC assignment :)
Definition
Computer, in the most basic form is any device that helps human in doing calculation or computation tasks. The earliest 'computer' is abacus, a calculating device that used partly in Asia.
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| Abacus |
Modern computers perform this activity electronically, with more functions added to help doing more kind of tasks and improved calculation ability.
Generation of Computer
First Generation (1940s-1950s)
Computers of this generation were huge and complex, and used vacuum tube for the electronic computers. The first general purpose electronic computer was the ENIAC (Electronic Numerical Integrator And Computer). It was digital although it did not use binary code.
Second Generation (1955 – 1960)
Transistors were used, replacing vacuum tube. Thanks to the transistors, computers produced less heat, consumed less power, and it was smaller than vacuum tube.
Third Generation (1960s)
Microchips were used this time.They were smaller, cheaper, and more effective in offering the same benefits as transistors.
Fourth Generation (1971 - present)
Computers for this generation uses several of microchips in 1 computer. It is more modern and flexible.
- First Generation of Microcomputers were only usable for engineers.
- Second Generation of Microcomputers are easily operated.
- Graphical User Interface (GUI) is introduced.
- More idea like portable computers are brought to reality.
