When, who, and how was the computer invented?

- Hehe, landlord Who invented the computer, strictly speaking, it is difficult to define. 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 operations 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 the future, the real electric calculator had to wait until 1944 AD 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 great progress 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.

On February 14, 1946, at the Moore Electric College of the University of Pennsylvania in the United States, a festive atmosphere was everywhere. Many of the guests came here with excitement to attend the unveiling of the first modern electronic computer in human history. What is presented to people is a strange-looking, glittering behemoth.

It is the world's first modern electronic computer, "Eniac". This behemoth covers an area of 170 square meters and weighs 30 tons. At the unveiling ceremony, Enia performed its "trick" for the guests - 5,000 additions and 500 multiplications in 1 second, which was more than 1,000 times faster than the fastest relay computer at the time.

This perfect appearance made the guests applaud. However, who knows how many people have poured countless efforts into the birth of this behemoth!

It was invented by Cao Quan! When the worst city in the world was born, the shining star of the century--- Cao Quan, --- suddenly descended to save the poor man.

United States World War II.