What are the main components of a computer host?

The computer host is composed of a chassis, memory module, hard disk, floppy disk drive, power supply, optical drive, sound card, graphics card and modem, motherboard and other components.

1. Chassis: The chassis is the carrier of most of the parts of the computer. As a part of the computer accessories, its main role is to place and fix the computer accessories, and play a supporting and protective role;

2. Memory module: The memory module is a channel connecting the CPU and other devices, and its role in the computer is equivalent to a bridge, which is responsible for the data exchange and processing between the processor on hardware such as hard disks, motherboards, graphics cards, etc.;

3. Hard disk: The hard disk is the most important storage device of the computer, which is composed of the magnetic head, disc, motor, main control chip and other components. Its reading and writing method adopts semi-random access, which can read the data in the hard disk in any order, but the speed of reading the data in different locations is different.

1. Chassis: The shell of the host, which is used to fix each hardware.

2. Power supply: the host power supply system, which is used to supply power to the host and stabilize the voltage.

3. Motherboard: The body that connects each hardware in the host.

4. CPU: The brain of the host, responsible for data processing and processing.

5. Memory: temporarily store the data that the computer is calling.

6. Hard disk: the storage device of the host, which is used to store data.

7. Sound card: processing the audio signal of the computer, with motherboard integration and independent sound card.

9. Network card: Deal with the network signal between the computer and the computer, the common personal host is an integrated network card, and most servers are independent network cards.

10. Optical drive: The optical drive is used to read and write disc data.

11. Floppy drive: The floppy drive is used to read and write floppy disk data, and floppy disks have now been completely eliminated.

The main components of a computer host are: motherboard, memory module, hard disk, floppy disk drive, optical drive, sound card, graphics card and modem.

The motherboard is the skeleton of the main manager, through which most devices have to be connected; This is the CPU, which is called Central in English

processing

unit, which means ** processor, is the heart of the general manager, unified command and dispatch of all the work of the computer. Usually everyone says that Pentium refers to different CPUs.

Memory, English name read

arandom

Memory, abbreviated as RAM, is the place where data and information are stored in the process of computer work, and its unit is called "megabytes", which is represented by "m" (1m

1024k，1k

1024 bytes, 1 Chinese character accounts for two bytes, 1M is equivalent to about 500,000 Chinese characters), generally everyone omits the word "byte" and only calls it "mega". Today's machines are generally installed with 32M or 64M of RAM.

Hard disk,It is the place where various software and files are usually installed,Equivalent to the belly of the host manager,The user's win98,Games or files and letters are all placed here,In the past, the hard disk capacity was less,Only a few hundred megabytes,At present, there are generally 6G、8G or 10G or more large capacity (1G

1024m)。

Floppy drive, divided into 3 inches and 5 inches, the commonly used are 3 inch floppy drive, can read and write 3 inch floppy disk, can store byte content, you can use the floppy disk to copy a file to another computer, you can also copy the main file information on the floppy disk, in case the computer fails to lose data.

CD-ROM drive, also known as CD-ROM drive, means read-only CD-ROM drive (that is, can only read CD-ROM, can not write), a CD-ROM disc can generally put about 650M data, without it, now many large software such as win98, office

2000 and so on, I really don't know where to put it.

One of its main performance indicators is "double speed", which is calculated based on 150k bytes per second read from the optical drive. Twice the speed means that 2x150k=300k bytes (1k=1024) can be read from the optical drive per second, and the commonly used optical drive can reach 32 times or 48 times the speed, and the 100 times faster optical drive is also about to be listed.

The graphics card is a common computer expansion card, which is responsible for telling the monitor what the chief executive thinks and what the chief executive is doing.

The sound card, which is responsible for telling the speaker (or speaker) manager what to "say".

Network card: It is a computer expansion card that connects to an external network, and it is responsible for the groove with the outside.

Processor and main memory.

Computers contain both hardware and software.

Hardware: indispensable CPU, CPU fan, motherboard, memory, hard disk, graphics card, sound card, chassis and power supply, dispensable optical drive, floppy drive, network card, speaker, expandable TV card, ** capture card, game handle, restore card and many other expandable cards.

Software: Software is something written in the hard drive; Operating system software essentials, office software, picture viewing, compression, and other application software.

The host is the brain, the monitor is the eye, and the keyboard and mouse are the hands.

Computer composition: is a logical implementation of the structure of the system.

A computer consists of a hardware system and a software system: the hardware system is divided into a host system and an external device. The host system is divided into processors (CPUs), memory, and motherboards.

External devices are divided into external storage devices, input devices, and output devices. The soft drop system is divided into basic input and output system (BIOS), system software, and application software.

Generally understood, the computers we use in our daily lives are divided into blocks: host, monitor, keyboard, and mouse. The host computer is the main part of a computer, and all data storage and processing are in the main machine.

Ordinary computers are generally monitors and mainframes, as well as peripherals such as keyboards and mice; So the general host should be said to be that chassis.

Computer composition: is a logical implementation of the structure of the system.

The main function of the host is to place its own server in the computer room that can provide server hosting business units, so as to realize its connection with the Internet, so as to save the user from applying for a dedicated line to connect to the Internet. The server hosting provided by the data network company is different from that of ordinary companies, because the data network company has the access center of chinanet, so the hosted server can pass through 100M

The network interface to connect to the Internet, this speed is difficult for the average company to provide.

The CPU, memory, and I/O interfaces are commonly referred to as the host. In the main machine, Baohang has all circuit components except input and output equipment, and it is a system that can work independently.

Virtual hosting is to divide a certain disk space on the network server for users to place sites, application components, etc., and provide necessary site functions and data storage and transmission functions.

The emergence of web hosting technology is a significant contribution to Internet technology and a blessing for the majority of Internet users. Since multiple virtual hosts share the resources of a real host, the hardware costs, network maintenance costs, and communication line costs borne by each user are greatly reduced, and the Internet has truly become an affordable network for everyone! Nowadays, almost all American companies (including some households) have their own web servers on the network, and a significant number of them use web hosting!

The so-called virtual hosting, also known as "**space", is to divide a server running on the Internet into multiple "virtual" servers, each virtual host has an independent domain name and a complete Internet server (support www, ftp, e-mail, etc.) function. Different web hosts on one server are separate and managed by the user. However, a server host can only support a certain number of web hosts, and when this number is exceeded, users will experience a drastic drop in performance.

Virtual hosting technology is the technology used by the Internet server to save the cost of server hardware, and the virtual hosting technology is mainly used in HTTP services, which logically divides one or all of the service content of a server into multiple service units, and is externally manifested as multiple servers, so as to make full use of server hardware resources. If the division is at the system level, it is called a virtual server.

No matter what kind of computer it is, what humans currently make is composed of the following parts:

The most basic components: processor, memory, motherboard, power supply, storage device, basic input and output devices;