1.How many buttons in mouse?
Mouse buttons are electronic switches on a computer mouse that can be pressed (“clicked”) to select or interact with elements of a graphical user interface. Mouse buttons are most commonly implemented as miniature snap-action switches (microswitches).
At present, the most common mice are 3-button and 6-button mice, and there are mice with other buttons, but they are not common.
The 3-button mouse contains the left mouse button(also called primary mouse button), the right mouse button and the mouse wheel. The scroll wheel is also known as the middle mouse button. The 3-button mouse is mostly used for ordinary business office because of its simple structure and function, and the price is relatively cheap. If you hold the mouse with your right hand, the left mouse button is under your index finger and the right mouse button is under your middle finger. Since the index finger tends to be more flexible than the middle finger, all mouse scroll wheels are usually controlled by the index finger.
Left-click function: left-click, select the target, double-click, select the target and execute the corresponding command – for non-executable files or folders, it is displayed as an entry file, and for an executable program, it is a running program.
The software recognizes two clicks and requires a short interval between the two clicks, and if a second click is made after the recognition time expires, it is considered a new click. Most modern operating systems and mouse drivers allow users to change double-click speed, as well as an easy way to test the settings. Some software can recognize three or more clicks, such as gradually selecting a word, sentence or paragraph in a word processor text page, as more clicks are given in sequence.
Right-click function: The right-click is usually only used by clicking, which invokes the context menu in the user interface of the computer software, and displays the operations that can be performed on the current object, including options specially customized for the interface element where the pointer is currently located.
Scroll wheel function: The scroll wheel is located in the middle of the left mouse button and the right mouse button. Its main function is to move the scroll wheel forward or backward to browse when browsing web pages or texts in the browser. Today’s mouse wheel usually supports clicks. When the mouse wheel is pressed, the mouse pointer changes to a circle with a clipped head in the upward and downward directions. At this time, using the mouse to move forward or backward on the mouse pad can achieve the same effect as turning the scroll wheel, so that the webpage or text can be displayed up and down. Pressing any mouse button will restore the normal mouse cursor and functionality.
Compared with the conventional 3-button mouse, the 6-button mouse has 2 more side buttons and a DPI adjustment button.
Mouse Side Button Function: The 2 side buttons of the mouse are located on the left side of the mouse and are controlled by our thumbs. The default function is the forward and backward of the web page. When opening a file, the forward and backward operations will also be performed according to the file opening path. In some games that can bind mouse hotkeys, we can also bind mouse side buttons for specific functions, which is usually more convenient than finding specific keys on the keyboard. For some mice that support macro programming, the specific function of each button can be set through macro programming. For example, let the side button of the mouse to click, let the left and right buttons of the mouse to advance and return to the web page, etc. For the macro recording function, you can make a mouse button execute a series of operation commands.
Middle mouse button: The middle of the mouse is located behind the mouse wheel, which is usually used to adjust the DPI of the mouse. A mouse with a middle mouse button usually has 3 or more DPI gears. By pressing the middle of the mouse, it can cycle through the existing several mouse DPI values.
The extra buttons on a mouse with 6 or more buttons are usually located behind the middle mouse button or on the left side of the mouse. The middle and rear of the mouse is usually used to add or subtract DPI or switch lighting modes. It is located on the left side of the mouse to meet the needs of some games for mouse buttons. In some games, the operation instructions are very complicated. In order to simplify and implement the operation instructions more quickly, there are gaming mice with 10 or more side buttons. But for the average user, these multi-sided buttons aren’t much help.
2.How many types ofmouse in computer?
There are many different computer mice on the market, but different doesn’t mean they’re not the same kind of mouse. So, how many types of mice are there in total? In fact, the type of mouse in computer depends on the classification method of the mouse. The current mainstream classification methods are ① connection method ② working method ③ usage scenarios. According to these 3 classification methods, the mouse is divided into 9 kinds, the following will introduce these 9 kinds of mouse one by one. For the convenience of everyone’s understanding, images will be placed below the introduction.
According to the connection method, the mouse can be divided into wired mouse and wireless mouse. The wireless mouse is further divided into a Bluetooth mouse and a mouse with a 2.4G receiver.
- Wired mouse
A wired mouse usually connects directly to your desktop or laptop computer via a USB port and transmits information over the cord. The power cord connection offers several key advantages. For the uninitiated, wired mice offer fast response times as data is transferred directly over the cable. They also tend to be more accurate than other designs. This can make wired mouse models ideal for gamers, digital artists and other users who rely on high accuracy.
- 2.4Ghz Wireless Mouse
The wireless mouse transmits radio signals to a receiver connected to the computer. The computer receives the signal and decodes the way the cursor moves or the button clicked. While the freedom or range of the wireless model is convenient, there are some disadvantages. For example, the decoding process means that wireless mice are often less responsive to gestures than wired mice. Gamers in particular may find the lag frustrating. That said, there are wireless mice designed for gaming that address the latency issues in their design and have faster response times. However, for most users, the latency or loss of accuracy of wireless models is negligible.
- Bluetooth Mouse
The wireless mouse design and the Bluetooth mouse design look very similar, as neither requires a wired connection to operate. Most wireless mouse models use a dongle connected to a PC and the mouse communicates back and forth in this way. However, the Bluetooth mouse utilises the internal Bluetooth connection on the PC, allowing you to connect the mouse to multiple devices at once.
Keep in mind, however, that not all devices have a Bluetooth connection. If your PC does not have a built-in Bluetooth receiver, you can plug a USB receiver into your PC and use it with the Bluetooth mouse and other Bluetooth devices.
Comparing wired vs. wireless vs. Bluetooth mice
The debate about whether a wired or wireless mouse is the best choice is as old as the devices themselves. In fact, depending on how you use your mouse most often, they’re both excellent choices. Here’s a quick comparison between wired, wireless and Bluetooth mice to help you decide.
The average user may only notice a few key differences between the wired and wireless types of mouse. While wired mice are powered by a connection to a PC, wireless mice usually require charging or batteries to operate. However, wireless mice also offer greater freedom and connectivity across a room and can often work on surfaces other than the mouse pad, making them ideal for presentations or where you need to be away from the screen but can control the display.
According to the working mode of the mouse, it can be divided into mechanical mouse, optical mouse and optical mouse.
- Mechanical mouse(trackball mouse)
Mechanical mice are also known as wheel mice or trackball mice. The mechanical mouse has a round ball at the bottom of the mouse. When the mouse moves, the ball starts to rotate after rubbing against the desktop. The rotating ball drives the roller to rotate, and the photoelectric pulses of different intensities generated at this time are recognized by the sensor. After the computer program recognizes the transmitted signal, the mouse cursor will change the corresponding displacement on the computer.
At present, the mechanical mouse has basically been eliminated from the market due to reasons such as the accuracy and refresh rate of the new optical mouse.
- Optical Mechanical Mouse
Optical mechanical mouse is a combination of mechanical mouse and optical mouse, which is upgraded on the basis of mechanical mouse. Some of the contact parts of the mechanical mouse have a high rate of damage due to frequent friction, so replacing them with non-contact parts can greatly improve the service life of the mouse and improve the accuracy of the mouse to a certain extent. Since the iconic rolling ball still exists, there is no obvious difference between a mechanical mouse and an optical mouse in appearance.
- Optical Mouse
Optical mouse, also known as optical mouse, detects the displacement signal of the mouse relative to the surface of the object through optical detectors, optical lenses, light-emitting diodes and other components, converts the displacement signal into electrical pulse signals, and processes the software program to make the mouse pointer on the desktop. make the corresponding displacement. When you pick up the optical mouse, a bright red light spot will appear on the desktop, which is projected obliquely from the red LED light forward. After a few seconds, the light spot will dim. This is because in order to save power, the optical mouse is designed to intermittently flash optically. components, the LEDs will only light up when motion is detected. Optical mouse has made great improvements in the accuracy of mouse displacement feedback and mouse refresh rate, and the number of pages is currently the most mainstream mouse working method on the market.
- Laser mouse
The laser mouse is actually an optical mouse. The difference is that the optical mouse uses ordinary red LEDs, etc., while the laser mouse uses a laser light source instead of an LED light source. Because the laser is dry light, it is almost a single wavelength, so the wavelength of the light is more stable and the intensity is higher. It can be applied to a wider range of object surfaces and has higher accuracy. However, due to technical limitations and prices, the current market is still dominated by optical mice.
According to the usage scenarios of the mouse, the mouse can be divided into a gaming mouse and an office mouse.
- Office mouse
In order to save costs, office mice usually only have 2 mouse buttons plus a mouse wheel, no lights and no DPI adjustment, only a fixed 800 or 1000 DPI. These functions are sufficient for most office needs.
Gaming mouse is a mouse with richer functions and more powerful performance designed to meet the needs of games. The gaming mouse will use a better gaming chip, which will be much higher than conventional chips in terms of FPS, DPI, acceleration, etc. Usually equipped with 6 or more buttons, with independent driver software to adjust the mouse’s lighting, various parameters, button functions, macro recording, etc. All of these parameters and performance upgrades are designed to allow gamers to have a better experience in the game.
3.What is an optical mouse?
Optical mouse is a general term for a computer mouse that works in an optoelectronic way. It uses optical sensors, optical lenses and light-emitting diodes to detect relative movement between the mouse and the mouse pad. With the development of optical mouse technology becoming more and more mature, the current radio and television mouse has replaced the mouse of other working methods on the market, such as trackball mouse, optical mechanical mouse and so on.
How Optical Mouse Works and Principles?
Through the LED infrared light source at the bottom of the mouse, the light is emitted obliquely at an angle of about 30 degrees, forming a shadow on the slightly rough surface, and then reflected by the light at the bottom of the mouse, fed back to the optical sensor through the optical lens, and then imaged. This transmission feedback process usually occurs more than 125 times per second, and some can reach more than 8,000 times per second. In this way, the movement of the mouse will be recorded as a series of thousands of consecutive images per second. The sensor analyzes and compares the continuous image information transmitted back to determine the movement track of the mouse. These movement trajectories will be parsed into continuous data information by the mouse processor, and the processor will then transmit the data to the computer, and the calculation data will make the mouse make corresponding movements on the desktop according to the information. The length of the moving distance depends on the moving distance of the mouse, the moving speed and the current DPI value of the mouse, and the moving distance of the desktop has a positive correlation with them. The accuracy of cursor positioning largely depends on the refresh rate of the mouse. The more picture information is updated per second, the more accurate the mouse movement trajectory that can be fed back will be. At present, the polling rate of good gaming mice on the market is usually above 500Hz, and the data is updated every 2 milliseconds, and the data is updated every 1 millisecond at 1000Hz.
Due to the working principle of optical mice, optical mice do not work well on transparent glass or surfaces that are sufficiently smooth. Usually, the pointer trembles and the pointer movement fails, which is quite different from the actual movement trajectory and speed. This is because most of the light is reflected on the surface of the object that is smooth enough, and there is not enough diffuse reflection light to form a clear and stable picture. The processor cannot recognize the image information well, and the mouse moves abnormally or does not work. Case. When using a mouse on a transparent glass surface, one is that the glass is too smooth, and the other is that the glass is almost transparent, most of the light is refracted, and the reflected light is too little, which together lead to the unclear image of the mouse, and the processor cannot accurately identify the mouse. movement track.
Before the advent of optical mice, people used mechanical mice. Mechanical mice are also known as wheel mice or trackball mice. Mechanical mice have a ball on the bottom of the mouse. When the mouse moves, the ball starts to spin after rubbing against the table. The rotating ball drives the drum to rotate, and the photoelectric pulses of different intensities generated at this time are recognized by the sensor. After the computer program recognizes the transmitted signal, the mouse cursor changes the corresponding displacement on the computer.
Optical Mouse vs Mechanical Mouse
Compared with the mechanical mouse, the current optical mouse has surpassed the mechanical mouse in terms of accuracy, refresh rate, service life and other aspects. Most mechanical mice on the market today have been eliminated by optical mice.
History of the Optical Mouse
The first optical mouse proved in December 1980, a total of 2 optical mice were displayed. One of these mice, invented by Steve Kirsch personally and Mouse Systems Corporation, uses infrared LEDs and infrared sensors to detect grid lines on a specific mouse pad, and then uses the mouse processor’s predictive algorithms to calculate the direction and speed of the mouse’s movement on the grid . Another mouse invented by Richard F. Lyon of Xerox, another sensor detects movement in a specific integrated version to calculate the movement trajectory of the mouse.
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