The five major components inside a computer: 1. Controller, the computer’s control system; 2. Calculator, the computer’s computing system; 3. Memory, the computer storage system; 4. Input devices, which input data and Information equipment; 5. Output equipment, terminal equipment of computer hardware systems, used to receive computer data output display, printing, sound, control peripheral equipment operations, etc.
#The operating environment of this article: Windows 7 system, Dell G3 computer.
1. Controller: computer control system
2. Calculator ：Computer operation system
-Logical operation (judging whether things are right or wrong)
-Mathematical operation (1 1)
Controller operator = central processing unit (CPU)
3. Memory: computer storage system
-Memory
Based on electrical work
Advantages: fast reading speed
Disadvantages : Data loss during power outage
-External storage
Advantages: Data can be stored permanently
Disadvantages: slow reading speed
4. Input devices: devices for inputting data and information into the computer
Keyboard, mouse, microphone, camera , touch screen, etc.
5. Output device: terminal device of the computer hardware system, used to receive computer data output display, printing, sound, control peripheral device operations, etc.
Monitor, audio, printer
Input device: input Output device: output
Memory is also called I/O operation
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