Briefly describe the basic components of the computer hardware system, draw a diagram of the computer workflow

The three main components of the machine are: monitor (responsible for displaying the processing data of the host computer, is the bridge between the computer and the user to communicate), the host computer (responsible for processing the user's instruction data), PS / 2 (mouse and keyboard: input, control devices).

If you're interested I'll tell you the basic information about the motherboard

CPU: extracts and processes the data of the whole machine, equivalent to the human brain.

Memory: temporary stack of processing data generated by the CPU

Video card: when the video signal received, after their own processing sent to the monitor to control its display

Hard disk: the system, the user data stack

North Bridge: responsible for the management of the graphics card, memory (AMD's memory with the CPU to manage directly), the CPU. management of high-speed devices

South Bridge: responsible for the management of hard disk, sound card, network card, peripheral slots and other low-speed devices

BIOS: read-write memory, used to modify the user exists in the COMS of the most basic information, such as startup items, the first boot item and other information

I/O: the main management of the PS/2, the printer interface, and other external interfaces