What do commonly used microcomputer input devices usually include?

Commonly used microcomputer input devices usually include "keyboard" and "mouse". Input devices are devices for inputting data and information into the computer, and are a bridge for communication between the computer and the user or other devices; the keyboard and mouse are the most commonly used and important input devices. English letters, numbers, punctuation marks, etc. can be input into the computer through the keyboard; the cursor on the current screen can be positioned through the mouse, and the screen elements at the location passed by the cursor can be operated through the keys and scroll wheel device.

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

Commonly used microcomputer input devices usually include "keyboard and mouse". English letters, numbers, punctuation marks, etc. can be input into the computer through the keyboard; the computer operation can be made easier and faster through the mouse.

Input devices are devices that input data and information to the computer. They are a bridge between the computer and the user or other devices. Input devices are one of the main devices for information exchange between users and computer systems. Keyboards, mice, cameras, scanners, light pens, handwriting input tablets, joysticks, voice input devices, etc. are all input devices; among them, keyboard and mouse are the most commonly used and important input devices.

Input device (InputDevice) is a device for human or external interaction with the computer. It is used to input raw data and programs for processing these numbers into the computer. Computers can receive a variety of data, which can be numerical data or various non-numeric data, such as graphics, images, sounds, etc., which can be input into the computer through different types of input devices for processing. Storage, processing and output.

Keyboard

The keyboard is an instruction and data input device used to operate computer equipment. It also refers to a group of devices that operate a machine or equipment through system arrangements. Function keys (such as typewriters, computer keyboards). The keyboard is also a part of the keyboard instrument. It can also refer to an instrument that uses a keyboard, such as a piano, a digital piano or an electronic keyboard. The keyboard is helpful for practicing typing.

The keyboard is the most commonly used and important input device. English letters, Chinese characters, numbers, punctuation marks, etc. can be input into the computer through the keyboard, thereby issuing commands and inputting data to the computer. There are also keyboards with various shortcut keys. As time goes by, independent products with various shortcut functions gradually appear on the market and are sold separately, with dedicated drivers and setting software, and personalized operations can also be realized on compatible machines.

Mouse

The mouse is an external input device for the computer and an indicator for positioning the vertical and horizontal coordinates of the computer display system. It is named after its shape like a mouse (Hong Kong and Taiwan as a mouse). Its standard name should be "mouse", and its English name is "Mouse". The use of the mouse is to make computer operation easier and faster, replacing the cumbersome instructions of the keyboard.

The mouse is a very commonly used computer input device. It can position the cursor on the current screen and operate the screen elements at the location passed by the cursor through buttons and wheel devices. The originator of the mouse appeared in 1968, when American scientist Douglas Englebart made the first mouse in California.

Mouses are divided into mechanical mice and optical mice according to their different working principles. The mechanical mouse is mainly composed of a rolling ball, a roller and a grating signal sensor. When you drag the mouse, the rolling ball is driven to rotate, and the rolling ball in turn drives the roller to rotate. The grating signal sensor installed at the end of the roller collects the grating signal. The photoelectric pulse signal generated by the sensor reflects the displacement changes of the mouse in the vertical and horizontal directions, and is then processed and converted by the computer program to control the movement of the cursor arrow on the screen.

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