In which year the electronic computer was invented

The electronic computer was invented in 1946, and the combination of computer technology and automatic control technology developed a new type of general automatic control device suitable for industrial environments, which appeared as a replacement product for traditional relays.

With the rapid development of microelectronics technology and computer technology, programmable controllers have more computer functions, not only to achieve logic control, but also to have data processing, communication, network and other functions.

Because it can change the control process through software, and has the characteristics of small size, easy assembly and maintenance, simple programming, high reliability, strong anti-interference ability, etc., it has been widely used in various fields of industrial control, which has greatly promoted the process of mechatronics.

It is a series of high-performance, high-quality, low-cost, and flexible distributed control systems, which can form a variety of independent control systems, distributed control systems DCS, and monitoring and data acquisition systems (SCADA).

It can meet the needs of process control and information management in various industrial fields. The modular design of the system, reasonable software and hardware function configuration and easy expansion ability can be widely used in the decentralized control of various large, medium and small power stations.

The electronic computer was invented in 1946.

The world's first recognized electronic computer, born in 1946, was ENIAC, or Electronic Digital Integral Computer. ENIAC was a fully electronic computer, capable of being reprogrammed to solve a variety of computational problems, and it was proclaimed in the United States on February 14, 1946. It covers an area of 170 square meters, weighs 30 tons, consumes about 150 kilowatts of electricity, and can perform 5,000 calculations per second.

Electronic computers are also called computers, because as a tool for information processing, electronic computers have partially replaced the functions of the human brain. Especially after the 70s of the 20th century, the emergence of microprocessors has made the application of electronic computers more and more extensive. Computers are not only playing an increasing role in the field of traditional scientific computing, but also have a wide range of applications in other fields, and it has spread to all fields of human life.

Computer development

Computers can be divided into digital computers and analog computers according to the nature of the variables they process. According to the basic mechanism followed by computer architecture, it can be divided into: Neumann architecture computer and non-Neumann architecture computer.

According to the scale of the scattered large computer stand-alone system (referring to the comprehensive scale including function and volume), it can be divided into: giant computer, mainframe, small and medium-sized computer, workstation, personal computer (microcomputer, laptop computer, handheld computer, single board computer), etc. According to the geographical scope of interconnection between computer systems, it can be divided into:

Stand-alone system, computing punching machine LAN, computer remote network, etc. According to the degree of resistance of computer systems to harsh state environments, they can be divided into: general-purpose computers, ruggedized (semi-rugged) computers.

The above content reference: Encyclopedia - the first generation of electronic computers.

Invented in 1946, the computer is a small, lightweight, easy-to-carry, practical and inexpensive hand-held computing device that runs on the embedded Zheng Zheng operating system and embedded application software.

It's simpler and lighter than a laptop in terms of size, features, and hardware. In addition to managing personal information (e.g. contacts, plans, etc.), the PDA can also be used to browse pages on the Internet.

In addition to sending and receiving emails, and even mobile phones, it also has: tape recorder function, English-Chinese-English dictionary function, global clock comparison function, reminder function, leisure and entertainment function, fax management function and so on.

The power supply of a handheld computer is usually an ordinary alkaline battery or a rechargeable lithium battery. The core technology of the handheld computer is the embedded operating system, and the competition between various products is also mainly here.

In particular, the management of personal information and the browser and e-mail functions based on wireless data communication are not only convenient to carry around, but also provide a broad stage for software operation and content services.

The invention of the electronic computer was hailed in 1946, and the computer was in the mid-to-late 60s, with more and more software and a larger and larger scale, and the production of software was basically a self-defeating one, lacking scientific and standardized system planning, testing, and evaluation standards, and the evil result was a large number of software systems that had been established at great expense.

Unusable due to errors, or even huge losses, the software feels increasingly unreliable, to the point that there are almost no software that does not roll out the wrong version.

All this has greatly shaken the computer industry, history says"Software crisis"。

People realize that the compilation of large-scale programs is different from writing small programs, it should be a new technology, and the whole process of software development should be handled like a processing project.

The program should be designed to be easy to guarantee and verify correctness. In 1969, the structured programming method was proposed, and in 1970, the first structured bond-bearing programming language, the Pascal language, appeared, marking the beginning of the structured programming period.

Invented in 1946, the computer is a computer that does not need to be clamshelled, has no keyboard, and is of various sizes and shapes, but it is fully functional. Its components are basically the same as those of a laptop, but it uses a stylus to write on the screen.

Instead of using keyboard and mouse input, and breaking the J-shaped altimeter pattern where the laptop keyboard is perpendicular to the screen. In addition to having all the features of a laptop, it also supports handwriting or voice input, making it more mobile and portable.

The tablet was proposed by Bill Gates, at least it should be the x86 architecture, and from the tablet concept proposed by Microsoft, the tablet is a PC that does not need a flipper, has no keyboard, and is small enough to fit in a woman's handbag, but it is fully functional.

It is an application-centered, microprocessor-based, software and hardware can be tailored, and adapts to the comprehensive and strict requirements of the application system for functions, reliability, cost, volume, power consumption, etc.

It generally consists of four parts: embedded microprocessors, peripheral hardware devices, embedded operating systems, and user applications.

The Atanasoff-Berry Computer (ABC) was the world's first electronic computer, developed in 1946 by John Vincent Atanasoff of Iowa State University and his graduate student, Clifford Berry, between 1937 and 1941.

The third generation of integrated circuit computers (1964-1971) Although transistors were a significant improvement over electron tubes, transistors still generated a lot of heat, which damaged the sensitive parts of the computer.

In 1958, Texas Instruments engineer Jack Kilby invented the integrated circuit (IC), which combines three electronic components onto a small silicon wafer. Scientists integrate more components onto a single semiconductor chip. State envy.

As a result, computers become smaller, consume less power, and are faster. Developments during this period also included the use of operating systems, which allowed computers to run many different programs simultaneously under the control and coordination of a central program.

The invention of the electronic computer was made in 1946, and computer technology has developed rapidly since the birth of the first electronic general-purpose computer in the 40s of the 20th century, but today's computers still basically use the stored program structure, that is, the von Neumann structure.

This structure enables practical general-purpose computers.

The memory program structure describes a computer into four main parts: an arithmetic logic unit (ALU), control circuitry, memory, and input-output devices (IO).

The parts are connected by a set of cables and driven by a clock. Conceptually, a computer's memory can be thought of as a set of "cellular" units.

Each "cell" has a number, called an address; and can also store a smaller fixed-length information. This information can be either a directive or a data. In principle, every "cell" can store one or the other.