hardware system
Hardware system refers to the physical entity that constitutes a computer system, mainly composed of various electronic components and electromechanical devices.
The basic function of the hardware system is to accept computer programs and complete tasks such as data input, data processing and output results under the control of the program.
host
- CPU
- motherboard
- RAM
- hard disk
- graphics card
- sound card
- CD-ROM, etc.
1. Central processing unit CPU
CPU is the abbreviation of Center Processing Unit (Central Processing Unit). It is the heart of the computer and the most important component in the computer. It determines the basic performance of the computer. Mainly divided into Inter and AMD
2. Motherboard
The motherboard is the platform on which all the hardware devices of the computer run. It is not only a physical path connecting various components, but also a logical path for data transmission between various components.
3. Memory stick
The role of the memory is to transfer data for the hard disk and the CPU. When the program is exited or the computer is turned off, its data information will be lost. Therefore, the performance and capacity of memory play a pivotal role in the entire system.
4. Graphics card
The graphics card and the display constitute the display system of the personal computer, and the graphics card is the control circuit and interface for the communication between the display and the host computer. They are important devices for realizing human-computer interaction in the operation of personal computers. Image card chips are mainly divided into NVIDIA and AMD
5. Hard Disk and Floppy Drive
The hard disk is a large-capacity storage for various computer software, data and files.
input device
- keyboard and mouse
- gamepad
- scanner etc.
1. Keyboard and mouse
The keyboard is one of the most important input devices in the computer. The installation of the keyboard is connected to the keyboard interface on the motherboard through a PS/2 interface. The mouse is an input device that has become popular with the Windows graphical operation interface. In many cases, you do not need to use the keyboard to input commands, just click the corresponding menu commands or selections with the mouse.
output device
- monitor
- printer
- projector
- Audio, etc.
1. Display
The monitor is the primary output device, which is connected by a cable to the graphics card of the host computer in order to display the computer's content to the user.
Software system
Software system refers to various computer programs and all technical data that provide services for computer operation.
The task of the software system is to ensure that the functions of the computer hardware can be fully utilized, and to provide users with an intuitive and
convenient working environment.
operating system
- Windows
- linux
- Unix
application
- Office Software
- Games software
- Design software, etc.
–Summary from the video given by Shen Chao (Band of Brothers): "Network Basics"