The history of computer

2016/5/25
Trend
The development of computer technology has the following four characteristics: 1.multi-polarizatio（多极化） 2.Intelligent 3.networked 4.multimedia
Advance of four computer
Electronic computer
Operation instruction for a specific task；Vacuum electron tube
Transistor computer Personal Computer Personal Computer
In the late 1960s and early 1970s , engineers made great strides （进步） in reducing the size of electronic components. They developed the semiconductor chip （半导体 芯片），which was about the size of a fingenail and could contain hundreds of transistors.
Artificial intelligence computer
Now ，the artificial intelligence computer are being used today. it includes many function : Game Playing， Expert Systems（专家系统）, Natural Language, Neural Networks（神经网络） and Robotics
In 1946 Pennsylvania University in the USA developed thefirst electronic computer in the world through several years "hard efforts".
Transistor computer
Personal Computer
In 1981,International Business Machines(IBM),the largest computer company in the world, introduced its own microcomputer ,dubbed the IBM PC("PC" is the abbreviation（缩写，简称） for personal computer)
2016/5/25
Small volume；faster； low energy
Reliability and computing have been improve
Fully function
Video about the development of computer
Four generation of computer
1
2 3 4
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Electronic computer
源自文库
Transistor computer
Personal Computer
Artificial intelligence computer
Electronic computer
What is a computer ？
In its most basic form a computer is any device which aids humans in performing various kinds of computations or calculations. In that respect the earliest computer was the abacus（算盘）, used to perform basic arithmetic operations（算术运算）.