In what year did the world s first computer come out?

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!

Wu Tiantian's speed is so fast?

It's best to remember what day it was on Valentine's Day in 1946.

Announcing that it's still Valentine's Day that day, hehe.

On February 14, 1946, it was successfully developed by the U.S. Department of Defense and the University of Pennsylvania in the United States

Computers, also known as electronic computers, are tools that we often use in our daily life and work. It has a wide range of uses: medical, architectural, teaching, military, etc., as long as people can see it.

The continuous development of modernization is inseparable from the use of computers, and it is really difficult for modern human beings to imagine what the world would be like without computers, but how was the computer invented? Today, let's witness the birth of the world's first computer.

01 The world's first general-purpose computer, "ENIAC", was born at the University of Pennsylvania in the United States on February 14, 1946. The inventors were the Americans Moakley and Eckert.

02 It is used by the U.S. Department of Defense for ballistic calculations. It was a behemoth with 18,000 tubes, covering an area of 150 square meters, weighing 30 tons, consuming about 150 kilowatts of electricity and performing 5,000 operations per second, which seemed insignificant now, but was unprecedented at the time.

03 ENIAC uses electron tubes as components, so it is also called tube computers, which is the first generation of computers.

04 Due to the large volume of the tube used in the tube, the power consumption is large, and it is easy to generate heat, so the working time should not be too long.

05 People began to study the use of electron tubes as a"Electronic switches"to improve the computing speed of the computer. Many scientists took part in experiments and research, and finally made the world's first electronic computer, which was named"Eniake"。

After introducing the world's first computer, do you feel that it is not easy?

On February 15, 1946, the world's first general-purpose digital electronic computer ENIAC was successfully developed, and the "Moore Group" that undertook the development task was composed of four scientists and engineers Eckert, Mokeley, Goldstein, and Box, and the chief engineer Eckert was only 24 years old at the time.

ENIAC: 1 meter long, 1 meter wide, covers an area of 170 square meters, 30 operating stations, about the size of 10 ordinary rooms, weighs 30 tons, consumes 150 kilowatts of electricity, and costs 480,000 US dollars. It uses 18,000 tubes, 70,000 resistors, 10,000 capacitors, 1,500 relays, more than 6,000 switches, and performs 5,000 additions or 400 multiplications per second, which is 1,000 times that of a relay computer and 200,000 times that of manual calculations.

In January 1971, Intel's Hough successfully developed the world's first 4-bit microprocessor chip, Intel 4004, marking the advent of the first generation of microprocessors and the beginning of the era of microprocessors and microcomputers.

In November 1971, Intel introduced the MCS-4 microcomputer system (including 4001 ROM chip, 4002 RAM chip, 4003 shift register chip and 4004 microprocessor), of which 4004 (above) contained 2300 transistors in a 3mm 4mm size, and the computing performance far exceeded that of the ENIAC of that year, and was originally sold for $200.

Apple's earliest logo used before 1976.

The early Apple computer, Apple IIC, was founded in 1976 by Steve Jobs and Steve Wozniak (Wozniak for short). Developed and sold the Apple i computer in that year.

In 1984, the revolutionary Macintosh computer was introduced.

In 2005, Steve Jobs announced that Intel processors would be used for the next year.

The history of the personal computer.

1971 - Intel Corporation produces its first microprocessor, the 4004. 1974 - Intel Corporation produces the Type 8080 micro-integrated circuit chip, and with it, the chip appears as the CPU"altair"Computer. This name is due to the movie"Interstellar travel"The fragment of a galaxy named after it became a sign of the success of an amateur in building a personal computer with a set of tools worth $400.

1975 - Bill Gates and Paul Allen establish Microsoft Corporation and develop the Basic language used by Altair computers. 1975 - IBM announces the launch of the 50-pound Model 5100 portable computer market for $8,975**. 1976 – Steve Wozniak and Steve Jobs' Studio introduces the Apple i-computer, which is tilted in front, placed in a wooden box, bolted to and denominated in dollars.

1977 – Steve Jobs' Apple introduces the Apple Model II computer, which features color graphics and stores information on cassette tapes. August 12, 1981 - IBM introduces a personal computer running on the Intel 8088 information processor. This Model 5150 computer is the prototype of the modern PC and runs on MS-DOS (Microsoft Disk Operating System).

November 1983 - Apple's Steve Jobs unveiled the exciting Macintosh computer for the first time at the Comdex showcase, and since then, the cookie-cutter character interface of personal computers has gradually been replaced by a vivid, highly personalized graphical interface, and the spring of multi-technology is coming. 1985 - Intel Model 386 chip for multitasking. Microsoft released the Windows operating system for the first time.

In 1986, Microsoft Corporation offered it to the public for a dollar per share. 1990 - Microsoft Corporation launches Windows 1993 - Intel introduces Pentium processors 1995 - Windows 95 is on the market and more than 1 million copies are sold in 4 days. In addition, Microsoft has offered to add Internet functionality to all of its products.

1997 - World chess champion Garry Kasparov is replaced by IBM"Navy"Supercomputer beats. 2000 - Intel Corporation introduces the Pentium 4 processor with 42 million transistors, running at speeds comparable to the 108 kHz speed of the first Intel chip in 1971. With the rapid development of information technology, tablet computers and handheld computers have also become the two main streams of personal computers this year.

Compared to desktops and laptops, tablets and PDAs are more functional and portable.