[Computer composition and system structure] computer hardware and software systems

A complete computer consists of a hardware system and a software system.

Hardware System

The so-called hardware system is the visible physical object of the computer. You need to see what the hardware of a computer includes. First, we use the shell (chassis) of a host ).

Take the new soprano chassis of TT as an example.

Is an empty shell of a host. After opening, it can be divided into three areas. The largest part in the middle is the motherboard and power supply, and the upper right corner is used for the disc drive. The lower-right part is used to hold a hard drive or a floppy disk drive. The number of optical drives, hard drives, and soft drives that can be mounted varies with the chassis. For example, this type of chassis has four optical drive locations and five hard drive/soft drive locations. There is a radiator at the rear of the chassis, that is, a fan. Another note is that the floppy disk has been eliminated since its capacity is small and slow, and almost no one is using it now. Only some older people may have seen a floppy disk.

It is a floppy disk (it should be used when the post-80 is small)

Host after installation

After the host is installed, it is roughly divided into four parts: motherboard, power supply, optical disc and hard disk. CPU, memory, video card, network card, and sound card are available on the main board. At last, the main board is used as the center to link each part with the bus. This completes the host.

After the host is installed, there are USB interfaces and audio plug on the front, and expansion slots, radiators, and other Jacks on the back. These are all connected to the motherboard in the host through the bus. The expansion slot can be addedInstall a video card, sound card, network card, Video Acquisition Card, and extended interface card.LastOther external devices, such as monitors, mice, keyboards, speakers, printers, and scanners, are connected to the motherboard through interfaces or Jacks on the host. This constitutes the hardware system of the entire computer.

 

Software System

Computer software systems are a series of extensions of computer functions.Program. The structure is shown in:

This article introduces the hardware and software components of the computer, the detailed main board, CPU, memory, and other sub-structures afterArticleIt will be written again.