The general model of a computer includes an input device, a processor, a memory, a storage device, an output device, and bus systems. Based on the general model, we can visualize the basic components in a computer.
1. General model of computer
(1) Input device
These are devices that enter data into the computer such as keyboard, mouse, webcam, scanner, etc.
(2) Processor
It is a data processing device, managing and controlling the computer’s activities, called CPU (Central Processing Unit).
(3) Memory
These are devices that temporarily stored data during the operation of the computer such as RAM, cache, etc.
(4) Storage device
These are data storage devices for computers, even when the computer is not working such as hard disk drives, USB, …
(5) Output device
These are devices that display and output data from machines such as monitors, printers, speakers, projectors, etc.
(6) Bus system
These are pathways between devices, responsible for transmitting data between devices.
2. Basic components in computer
Based on the connection location, the computer’s devices are divided into: internal and external devices.
- Internal devices: mainboard, CPU, Memory (RAM, ROM), HDD, CD-ROM Drive,…
- External devices: Monitor, keyboard, mouse, printer, scanner,…
