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The five major functional components of computer hardware are: 1. Data input device; 2. Data storage component; 3. Data operation component; 4. Data output device; 5. Control component. The core function of a computer system is to execute programs.
#We know that the core function of a computer system is to execute programs. In order to achieve this goal, at least the following five components or equipment are required:
1. Data input device
Input programs and raw data into the computer.
2. Data storage component
realizes the saving of programs and data.
3. Data calculation component
is responsible for data calculation and processing.
4. Data output device
Outputs the calculation and processing results.
5. Control component
Retrieves instructions from the storage component and completes instruction decoding. It provides the control signals required by each component or device according to the instructions to play the role of command, coordination and control.
Related introduction:
The functions of three types of buses:
Data bus: used to transmit electrical signals belonging to data information (commands and data) between components or devices .
Address bus: used to transmit electrical signals belonging to address information (commands and data) between components or devices [Address information specifies a storage unit in a data storage component or a device in a peripheral device].
Control bus: used to transmit electrical signals for control to storage components and peripheral devices [specify the direction of transmission between the CPU and these components or devices and the nature of the operation, etc.].
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