What is the history of computers? What is the history of computers?

Computer, commonly known as computer, is an electronic computer used for high-speed calculation, which can perform numerical calculations, logical calculations, and also has the function of storage and memory.

The history of computers dates back to ancient times, but the origins of modern computers can be traced back to the beginning of the 20th century. Here are the main milestones in the history of computer development:

1837: Charles Babbage designed a mechanical computer called the Difference Machine.

1937: Alan Turing published an article on the world, proposing the concept of a universal Turing machine, which became the theoretical basis of modern computers.

1941: Konrad Joff introduced the concept of stored programs, laying the foundation for the development of computers.

1943: The ENIAC computer was born, the first electronic computer used to perform complex mathematical calculations and research.

1951: The first commercial computer, UNIVAC I, was put into service to process U.S. Census data.

1958: Jack Killlick and Robert Noyce invented the integrated circuit, which integrates multiple transistors onto a single chip, making computers smaller, faster, and more reliable.

1971: Intel introduced the first microprocessor, which integrated all the features of the processor and ushered in the era of the personal computer.

1981: IBM launched the first personal computer, the IBM PC, becoming the market leader in personal computers.

1990s: The performance, functionality, and popularity of personal computers increased dramatically, and technologies such as Windows operating systems, the Internet, and multi-** appeared.

In general, the history of computers can be seen as the development of technologies such as the modern personal computer and the Internet, from the vast array of mechanical computing devices to the small electronic computers. With the continuous advancement of technology, computers play an increasingly important role in social and economic life.

Generation: Tube Digital Machine (1946-1958).

Features: large size, high power consumption, poor reliability. It is slow (generally thousands to tens of thousands of times per second) and expensive, but it lays the foundation for the development of computers in the future.

The second generation: transistor digital machines (1958-1964).

Features: Smaller size, reduced energy consumption, improved reliability, increased computing speed (generally 100,000 times per second, up to 3 million times), and greatly improved performance compared to the first generation computer.

The third generation: integrated circuit digital machine (1964-1970).

Features: The speed is faster (generally millions to tens of millions of times per second), and the reliability has been significantly improved, the first has further declined, and the product has moved towards generalization, serialization and standardization. The application field began to enter the field of word processing and stove liquid graphic image processing.

4th Generation: LSI Machines (1970-present).

Features: In 1971, the world's first microprocessor was born in Silicon Valley, ushering in a new era of microcomputers. The application field has gradually moved from scientific computing, transaction management, and process control to the home.

There are four stages of development:

The first stage of development is electron.

The era of tube computers, from 1946 to 1956. In 1946, the first electronic computer was introduced to the University of Pennsylvania in the United States, and it was designed by von Neumann. It covers an area of 170 square meters, 150kw

The computing speed is slow and no one is fast, which is a milestone in the history of computer development.

The second stage of development was the computer age of transistors, from 1956 to 1964.

The third stage of development was the computer age of integrated circuits and LSIs, from 1964 to 1970.

The fourth stage of development is the computer age of ultra-large-scale integrated caller circuits, which is from 1970 to the present.