What does a computer host consist of?

The computer host consists of CPU, memory, hard disk, optical drive, power supply, and other input and output controllers and interfaces. Those located inside the host box are usually called internal devices, while those located outside the host box are usually called peripherals (such as monitors, keyboards, mice, external hard drives, external optical drives, etc.); usually, the host itself (after installing the software) has It is a computer system that can run independently. Special-purpose computers such as servers usually only have a host computer and no other peripherals.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The computer host refers to the container (Mainframe) used to place the motherboard and other main components in the computer hardware system. Usually includes CPU, memory, hard disk, optical drive, power supply, and other input and output controllers and interfaces, such as USB controller, graphics card, network card, sound card, etc.

Things located inside the main chassis are usually called internal devices, while those located outside the main chassis are usually called peripherals (such as monitors, keyboards, mice, external hard drives, external optical drives, etc.). Usually, the host itself (after installing the software) is already a computer system that can run independently. Computers with special purposes such as servers usually only have the host and no other peripherals.

Virtual host:

1. Network space is also called web space, which is the main space for storing web pages, programs, pictures and other web files;

2. Database space: supported The database storage space provided by the virtual host of the database;

3. Log space: the storage space for website log (log) files.

Virtual host, (also called website space) is to divide a certain disk space on the network server for users to place sites, application components, etc., and provide necessary site functions, data storage, and transmission functions. The emergence of virtual host technology is a major contribution to Internet technology and is good news to the majority of Internet users.

Since multiple virtual hosts share the resources of one 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 a network that everyone can afford. ! Now, almost all American companies (including some families) have set up their own network servers on the Internet, and a considerable number of them use virtual hosts!

The so-called virtual host, also called "website 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 (supports World Wide Web, FTP, email, etc.) functions. Different virtual hosts on a server are independent and managed by the user. However, a server host can only support a certain number of virtual hosts. When this number is exceeded, users will experience a sharp drop in performance.

Virtual host technology is a technology used by Internet servers to save server hardware costs. Virtual host technology is mainly used in HTTP services to logically divide certain or all service contents of a server into multiple service units. , appearing as multiple servers to the outside world, thus making full use of server hardware resources. If the partitioning is at the system level, it is called a virtual server.

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