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noun explanation

mouse

A mouse is an input device for a computer. It is divided into two types: wired and wireless. It is also an indicator for the vertical and horizontal coordinate positioning of a computer display system. Make the operation of the computer easier and faster, instead of the tedious instructions of the keyboard .

wireless mouse

The wireless mouse uses wireless technology to communicate with the computer, thereby eliminating the need for wires. Currently, there are only three types of mainstream wireless mice: 27Mhz, 2.4G and Bluetooth wireless mice.

Optical Mouse

The optical mouse detects the displacement of the mouse through infrared rays, and needs to be used in conjunction with a special pad with a stripe or dot pattern.

Laser mouse

The laser mouse is actually an optical mouse, but it uses laser instead of infrared. No need to use a mouse pad, you can run freely on more surfaces.

Blue Shadow Mouse

Mouse products using blue shadow technology use a visible blue light source. The blue light emitted by the LED light source is reflected on the surface of the object and reflected to the imaging lens, which is imaged on the optical sensor. The optical sensor transmits them to the image processing chip. Find the track of mouse movement.

Sensitivity

DPI is used to represent the unit. The higher the dots per inch, the higher the dpi value, which means that the same distance is moved, the more the mouse signal is, the faster the speed is, or the more accurate the positioning is at the same speed.

Competitive mouse

The mouse that can be used in computer games is mainly distinguished by the performance of the optical engine. Generally, the scanning speed of the engine must reach more than 5000 times per second.

PS / 2 interface

PS / 2 communication protocol is a two-way synchronous serial communication protocol. The two ends of the communication are synchronized through Clock (clock pin), and data are exchanged through Data (data pin). The PS / 2 interface supports hot plugging, but it needs to be restarted after plugging in, which is different from the current hot plugging.

USB interface

The universal serial bus is a serial bus standard that connects computer systems with external devices. It is also a technical specification of input and output interfaces. It is widely used in information communication products such as personal computers and mobile devices.

2.4G wireless technology

Its frequency band is between 2.400GHz and 2.4835GHz. It is one of the three major wireless technologies on the market (including Bluetooth, 27M, 2.4G), and is more commonly used in wireless keyboards and mice.

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