What year was the computer invented The year the computer was invented

The original meaning of computer was "calculator", that is, humans invented computers to help with complex number crunching. The concept of this artificial calculator can be traced back to the great French thinker Pascal in the seventeenth century. Pascal's father was the tax collector, and the currency system at that time was not a decimal system, which was very cumbersome to calculate.

In order to assist his father, Pascal invented the first calculator that could perform addition and subtraction, using the principle of gears. Later, the German mathematician Leibniz improved it and invented a calculator that could do multiplication and division. Although the functions of the calculator were improved and refined in many ways, the real electric calculator had to wait until 1944 to be manufactured.

The first machine that can really be called a computer was born in the United States in 1946, invented by Mao Qili and Eckert, and the name is ENIAC. The computer uses vacuum tubes to process signals, so it's bulky (it takes up a room) and consumes a lot of power (the whole town knows about it, because the lights in every house are dim!). And the memory capacity is very low (only more than 100 words), but it is already a major advance in human technology.

And we usually call this kind of computer that uses a vacuum tube the first generation of computers.

The first generation of computers was the size of two classrooms, which was much different from the size of the personal computers we use today. At that time, the computer parts were vacuum tubes (which can no longer be found) and the archive thing is a punch card, if there is no design concept of predecessors, there is no invention of the computer, so it is a bit difficult to define who invented the computer.

In 1946 the first computer, the ENIAC, was introduced.

1946 year.

The first computer was born at the University of Pennsylvania in the United States in 1946, and its inventor was von Neumann.

Usefulness of Computers:

1. Use the computer to record, classify and calculate the data in a timely manner, and process it into the form that people need, which is called data processing, and compare the data processing with numerical calculation, the main feature is that there are more original data, and the computer data includes a large amount of processing, which timeliness is strong, but the calculation formula is not complicated.

2. What are the computer data included today, with the popularization of computer applications, computers are no longer just tools for scientific computing, computers are more used for data processing, such as production management, planning and scheduling, statistical reports, factory quality analysis and control.

3. In the financial department, we use computers for registration, classification, summarization, statistics and tabulation, and we cannot use computers to realize office automation. Using a computer for text input, typesetting, plate making and printing, it is faster, more efficient and more convenient to use than traditional printing, using computer communication to exchange data over a LAN or WAN, you can easily send and receive data reports and graphic faxes.

4. Automatic control is also an important aspect of computer application, in the production process, the use of computer for automatic control can greatly improve the quantity and quality of the production of car products, improve labor productivity, improve people's working conditions, save raw material consumption, and reduce production costs. <>

The world's first general-purpose computer:

Name:"eniac"

Place of birth: University of Pennsylvania, USA.

Inventors: It was the American Moakley (and Eckert (.

Birth process: In 1943, the U.S. Department of Defense approved a plan proposed by Professor John Mauchly and engineer John Presper Echert of Pennsyvania University to build an ENIAC (Electronic Numerical Integrator and Calculator) composed of electron tubes, the purpose of which was to calculate the ballistic trajectory of the new artillery.

Delivered on February 14, 1946, the ENIAC consisted of 17,468 tubes, 60,000 resistors, 10,000 capacitors, and 6,000 Kaixunmu liquid gates, weighed 30 tons, covered an area of 160 square meters, consumed 174 kilowatts of electricity, and cost $450,000. This computer can only run 5,000 addition operations per second.

In 1945, Eniac's consultant von Neumann first proposed the concept of stored programs in the EDVAC (Electronic Discrete Variable Computer) program. This idea was thought of by the British scientist Turing almost at the same time.

In 1946, while conducting advanced research at the Princeton Institute, Von Neumann designed a computer that stored program acres, the IAS, which was not available until 1952, but the general structure of the IAS was confirmed and became the prototype of the later general-purpose computer.

In the 50s of the 20th century, there were two major computer manufacturing companies, Sperry and IBM, IBM launched the program-controlled computer 701 in 1952, and the 702 in 1955, and later formed the 700 7000 series, making IBM the absolute authority of computer manufacturers. <>