Time division of weather in Tianjin

Popular Science: the History of Modern Computer Development in China

From 65438 to 0956, China formulated a twelve-year development plan for science and technology, and selected "computer, electronics, semiconductor and automation" as four emergency measures for the development plan, and formulated a development plan for computer scientific research, production and education. China's computer industry started from this.

1956 In March, the Chinese Academy of Sciences established four research institutes: computing technology, semiconductors, electronics and automation.

1956 On August 25th, the Preparatory Committee of Institute of Computing Technology, Chinese Academy of Sciences was established.

1956, Xia completed the design of the arithmetic unit and controller of the first electronic computer, and at the same time compiled the first lecture on the principles of electronic computers in China.

From 65438 to 0957, Harbin Institute of Technology successfully developed the first analog electronic computer in China.

1 August 19581day, the first computer in China, 103 general digital electronic computer, was successfully developed, running at a speed of 1500 times per second. The word length of this machine is 32 bits, with 30 operations per second, using drum memory, and the capacity is 1K words.

1958 The first self-developed 33 1 military digital computer in China was successfully developed by Harbin Institute of Military Engineering.

1959 September, China's first large-scale electron tube computer 104 was successfully developed. The operation speed of this machine is 654.38+00000 times per second. The word length of this machine is 39 bits. The magnetic core memory with the capacity of 2K~4K ~ 4 K is adopted, and it is equipped with external memory of magnetic drum, photoelectric paper tape input machine and 654.38+0/2 inch tape drive.

1960, the first large-scale general-purpose electronic computer in China-107 general-purpose electronic digital computer was successfully developed.

1963, the first large-scale transistor electronic computer in China-109 computer was successfully developed.

1964,441b full transistor computer has been successfully developed.

1964, China's first self-developed 1 19 large-scale digital computer was born in the Chinese Academy of Sciences, with an operation speed of 50,000 times per second, a word length of 44 bits and a storage capacity of 4 words. On this plane, the calculation task of developing China's first hydrogen bomb was completed.

1965, the "DJS-II" operating system of the millionth integrated circuit computer in China was compiled.

1965 In June, the first large transistor computer 109 B designed by China was born in Chinese Academy of Sciences, with a word length of 32 bits, an operation speed of 65,438+million times per second and a memory capacity of 24K words.

1967, a new transistor large general digital computer was born.

1967 in September, the 109 C machine developed by the Institute of Computing Technology of Chinese Academy of Sciences was delivered to users. This machine has been serving users for 15 years, and the effective problem solving time is over 654.38+10,000 hours, with an average use efficiency of over 94%, so it is praised as a "meritorious machine" by users.

1970, the first computer in China, 441b-iii full transistor computer, was successfully developed.

1972, a dozen units including North China Computing Co., Ltd. jointly developed a disk drive with a capacity of 7.4 megabytes. This is the earliest important external equipment developed in China that can be used in practice.

1969, Peking University undertook the development of integrated circuit digital electronic computer for millions of times-150 computer.

1972 A general-purpose digital electronic computer for large-scale integrated circuits with operations of 1 10000 times per second was successfully developed.

1973, China's millionth integrated circuit electronic computer was successfully developed.

In August, 1974 and DJS 130 small multifunctional computers passed the appraisal in Beijing and Tianjin respectively, and the DJS 100 series computers in China were born. The word length of this machine is 16 bits, the memory capacity is 32K words, and the operation speed is 500,000 times per second. The software is compatible with the NOVA series of DG company in the United States. The product was put into production in more than ten factories, and by the end of 1989, 1000 units had been produced.

1974 10 In June, the State Planning Commission approved the proposal of "Project on Developing Chinese Character Information Processing System" (Project 748) jointly put forward by the Commission of Science, Technology and Industry for National Defense, China Academy of Sciences and the Fourth Machinery Department. The project is divided into seven parts: keyboard input, central processing and editing, correction device, precision text generator and output phototypesetting device, universal fast output printing device, remote transmission equipment, editing and data management, printing and plate making software systems, etc. Project 748 has made an indelible contribution to the entry of Chinese characters into the information age.

1976, DJs- 183, 184, 185, 186 and 1804 were successfully developed.

1on April 23rd, 977, Tsinghua University, No.4 Machinery Department, No.6 Institute and Anqing Wireless Power Plant jointly developed the first microcomputer DJS 050 in China.

1978, the Sixth Institute of Electronics Department developed a DJS-054 microcomputer for industrial process control with Intel 8080 as CPU and I/O components, which is the first board-level industrial computer in China.

1979, China successfully developed an integrated circuit computer-HDS-9, which can calculate 5 million times per second. Wang chose the first laser imagesetter in China to discharge sample books.

1In June, 1980, the General Administration of Computer issued the Interim Measures for the Registration, Pricing and Charging of Software Products, and the industry norms of China software industry were born.

1980 10 Approved by the Propaganda Department of the CPC Central Committee, the State Science and Technology Commission and the Fourth Ministry of Machinery, Computerworld, the first professional computer newspaper in China, was founded. This has created a new industry, IT media.

At that time, the level of technology and manufacturing was 4-5 years different from that of the United States.