Computer Operating System Development History Article

The development process of the operating system

The development process of the operating system is as follows:

The first generation of computers (1945-1955): vacuum tubes and plug-in boardsIn the mid-1940s, the United States of America, Harvard University, the Institute for Advanced Study at Princeton, and the University of Pennsylvania, a number of people using tens of thousands of vacuum tubes, constructed the world’s first electronic computer, the opening of the development of computer history

The first computer was the first in the world.

The second generation of computers (1955-1965): transistors and batch processing systems in this period of time the computer is more and more reliable, has come out of the Institute, into the commercial applications, but this period of time the computer is mainly to complete a variety of scientific calculations, the need for specialized operators to maintain, and need to be programmed for each computing task.

The third generation of computers (1965-1980): integrated circuit chips and multi-channel programs In the early 1960s, computer manufacturers divided into two computer series based on different applications, one for scientific computing, one for commercial applications, with the deepening of computer applications, the need to unify the two applications of the computer appeared.

The fourth generation of computers (1980-present): personal computers with the continuous updating and development of computer technology, computers magically broke into people’s lives, and now at a low price you can get a powerful computing power of the computer, the price is no longer blocking the popularity of computers when the threshold, reducing the ease of use of the computer is very important.

The UNIX system’s own characteristics make it less suitable for running on personal computers, and a new operating system is needed. At this critical time in history, IBM underestimated the market for PCs and did not use its greatest strength to compete in this market, and Intel took advantage of the opportunity to enter and become the boss of today’s microprocessors.

Components of the computer

1, CPU: is often referred to as the central processing unit of the computer, is the core of the entire computer.

2, memory: memory is RAM, is a kind of memory, memory can be carried out to read hard disk data for Cpu use. Therefore, memory is the bridge between the hard disk and the cpu.

3, motherboard: the motherboard of the computer is a particularly critical part of the computer, it can be connected to various hardware, so that they can communicate with each other.

4, hard disk: hard disk is simply one of the computer’s main storage media, used to store the operating system and user information.

5, graphics card: graphics card is also known as the display adapter, a good graphics card can enhance the smooth operation of the computer. Its function is to output the information needed by the computer to the monitor.

6, sound card: sound card, also known as audio card, to realize the sound wave output of a device.

7, network card: network card is a computer can use the network of important equipment, can realize access to the network, and other equipment for communication.

8, mouse, keyboard, monitor, host and other external equipment, directly connected to the user some of the equipment.