What is the general term for all electronic devices and electromechanical devices that make up a computer?

"Computer hardware" is the general term for all electronic devices and electromechanical devices that make up a computer. Computer hardware, referred to as "hardware", is a general term for various physical devices composed of electronic, mechanical and optoelectronic components in a computer system; these physical devices form an organic whole according to the requirements of the system structure and provide a material basis for the operation of computer software. The computer hardware system still consists of 5 parts: arithmetic unit, controller, memory, input device and output device.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

"Computer hardware" is the general term for all electronic devices and electromechanical devices that make up a computer.

Computer hardware is referred to as "hardware" (a term used in mainland China and Hong Kong, and it is called: hardware in Taiwan). It refers to various physical devices in the computer system that are composed of electronic, mechanical and optoelectronic components. General term. These physical devices form an organic whole according to the requirements of the system structure and provide a material basis for the operation of computer software.

In short, the function of the hardware is to input and store programs and data, and to execute the program to process the data into a usable form. From the appearance point of view, the microcomputer consists of a main chassis and external devices. The main chassis mainly includes CPU, memory, motherboard, hard disk drive, optical disk drive, various expansion cards, connecting cables, power supply, etc.; external devices include mouse, keyboard, etc.

Composition of computer hardware

The computer hardware system still consists of 5 parts: arithmetic unit, controller, memory, input device and output device.

Operator

The operator consists of an arithmetic logic unit (ALU), an accumulator, a status register, a general-purpose register group, etc.

The basic functions of the Arithmetic Logic Operation Unit (ALU) are the four arithmetic operations of addition, subtraction, multiplication, and division, logical operations such as AND, OR, NOT, and XOR, as well as operations such as shifts and complements.

Controller

The Control Unit is the control center of the entire computer system. It directs all parts of the computer to work in a coordinated manner to ensure that the computer follows predetermined Goals and steps are carried out and processed in an orderly manner.

The controller fetches instructions one by one from the memory, analyzes what operations each instruction specifies and the storage location of the required data, etc., and then sends control signals to other components of the computer based on the analysis results to uniformly command the entire computer. Complete the operations specified in the instruction.

Central Processing Unit

Central Processing Unit (CPU), composed of arithmetic units and controllers, is an essential core component in any computer system. The CPU is composed of arithmetic units and controllers, which are implemented by arithmetic circuits and control circuits respectively.

Memory

Memory (Memory) is a memory device in a computer system, used to store programs and data.

All information in the computer, including input raw data, computer programs, intermediate running results and final running results are stored in the memory. It stores and retrieves information based on locations specified by the controller. Only with memory can the computer have memory function and ensure normal operation.

Input component

A device that inputs data and information to the computer. It is a bridge between computers and users or other devices. Input devices are one of the main devices for information exchange between users and computer systems.

Output device

Output device (Output Device) is a computer terminal device, used to receive computer data output display, printing, sound, control peripheral device operations, etc. . It also expresses various calculation result data or information in the form of numbers, characters, images, sounds, etc.

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