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What Is a Computer Mouse?
A computer mouse is an input device to control on-screen objects
By Tim Fisher Tim Fisher Senior Vice President & Group General Manager, Tech & Sustainability Emporia State University Tim Fisher has more than 30 years' of professional technology experience.
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Elijah Patel Member
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He's been writing about tech for more than two decades and serves as the VP and General Manager of Lifewire. lifewire's editorial guidelines Updated on February 7, 2022 Reviewed by Ryan Perian Reviewed by
Ryan Perian Western Governors University Ryan Perian is a certified IT specialist who holds numerous IT certifications and has 12+ years' experience working in the IT industry support and management positions.
lifewire's editorial guidelines Tweet Share Email Tweet Share Email Accessories & Hardware Keyboards & Mice The Ultimate Guide to Keyboard Shortcuts The Ultimate Guide to Keyboards The Ultimate Guide to Computer Mice The Quick Guide to Webcams Monitors Cards HDD & SSD Printers & Scanners Raspberry Pi The mouse, sometimes called a pointer, is a hand-operated input device used to manipulate objects on a computer screen. Whether it uses a laser or ball, or the mouse is wired or wireless, a movement detected from the mouse sends instructions to the computer to move the cursor on the screen in order to interact with files, windows, and other software elements. Even though the mouse is a peripheral device that sits outside the main computer housing, it's an essential piece of computer hardware in most systems...at least non-touch ones.
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Ryan Garcia 2 minutes ago
Mouse Physical Description
Computer mice come in many shapes and sizes but are all design...
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Nathan Chen 1 minutes ago
However, a computer mouse can have anywhere from one to several more buttons to provide a wide varie...
Computer mice come in many shapes and sizes but are all designed to fit either the left or right hand, and be used on a flat surface. The standard mouse has two buttons toward the front (to left-click and right-click) and a scroll wheel in the center (to quickly move the screen up and down).
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Dylan Patel 3 minutes ago
However, a computer mouse can have anywhere from one to several more buttons to provide a wide varie...
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David Cohen 2 minutes ago
The Logitech M570 is one example of this type of mouse. There are also mice made for special uses, s...
However, a computer mouse can have anywhere from one to several more buttons to provide a wide variety of other functions (like the 12-button Razer Naga Chroma MMO Gaming Mouse). The 5 Best Gaming Mice of 2022 While older mice use a small ball on the bottom to control the cursor, newer ones use a laser. Some computer mice instead have a large ball on top of the mouse so that instead of moving the mouse across a surface to interact with the computer, the user keeps the mouse stationary and instead moves the ball with a finger.
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Grace Liu 8 minutes ago
The Logitech M570 is one example of this type of mouse. There are also mice made for special uses, s...
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Christopher Lee 1 minutes ago
Another type is the ergonomic mouse that has a very different shape than a standard mouse to help pr...
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Liam Wilson Member
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The Logitech M570 is one example of this type of mouse. There are also mice made for special uses, such as travel mice, which are smaller than a typical mouse and often have a retractable cord.
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Nathan Chen 2 minutes ago
Another type is the ergonomic mouse that has a very different shape than a standard mouse to help pr...
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Isaac Schmidt 3 minutes ago
If wireless, mice connect to the computer either via RF communication or Bluetooth. An RF-based wire...
Another type is the ergonomic mouse that has a very different shape than a standard mouse to help prevent hand strain. As you can see, mice come in all sorts of shapes, sizes, and colors: Microsoft Amazon Amazon Amazon Anker Amazon No matter what type of mouse is used, they all communicate with the computer either wirelessly or via a physical, wired connection.
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Charlotte Lee Member
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If wireless, mice connect to the computer either via RF communication or Bluetooth. An RF-based wireless mouse will require a receiver that will physically connect to the computer. A Bluetooth wireless mouse connects via the computer's Bluetooth hardware.
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Noah Davis Member
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See How to Install a Wireless Keyboard and Mouse for a short look at how a wireless mouse setup works. If wired, mice connect to the computer via USB using a Type-A connector.
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Isabella Johnson Member
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Older mice connect via PS/2 ports. Either way, it's usually a direct connection to the motherboard.
Drivers for a Computer Mouse
Like any piece of hardware, a computer mouse works with a computer only if the proper device driver is installed.
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David Cohen 3 minutes ago
A basic mouse will work right out of the box because the operating system likely already has the dri...
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Harper Kim 26 minutes ago
The best way to install a missing mouse driver is through the manufacturer's website. Logitech and M...
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Thomas Anderson Member
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A basic mouse will work right out of the box because the operating system likely already has the driver ready for installation, but special software is needed for a more advanced mouse that has more functions. How Do I Fix a Mouse That Doesn't Work? The advanced mouse might work just fine as a regular mouse, but it's likely that the extra buttons won't function until the right driver is installed.
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Sophia Chen 13 minutes ago
The best way to install a missing mouse driver is through the manufacturer's website. Logitech and M...
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Henry Schmidt 24 minutes ago
for instructions on manually installing these types of drivers in Windows. However, one of the easie...
The best way to install a missing mouse driver is through the manufacturer's website. Logitech and Microsoft are the most popular manufacturers of mice, but you'll see them from other hardware makers as well. See How Do I Update Drivers in Windows?
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Christopher Lee 9 minutes ago
for instructions on manually installing these types of drivers in Windows. However, one of the easie...
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Joseph Kim 12 minutes ago
Some drivers can be downloaded through Windows Update, so that's another option if you still can't s...
for instructions on manually installing these types of drivers in Windows. However, one of the easiest ways to install drivers is to use a free driver updater tool. If you go this route, just be sure the mouse is plugged in when you start the driver scan.
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Ella Rodriguez 9 minutes ago
Some drivers can be downloaded through Windows Update, so that's another option if you still can't s...
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Sofia Garcia 11 minutes ago
More Information on the Computer Mouse
A mouse is supported only on devices that have a g...
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Thomas Anderson Member
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Some drivers can be downloaded through Windows Update, so that's another option if you still can't seem to find the right one. Basic options for controlling the mouse can be configured in Windows through Control Panel. Search for the Mouse Control Panel applet, or use the control mouse Run command, to open a set of options that let you swap the mouse buttons, pick a new mouse pointer, change the double-click speed, display pointer trails, hide the pointer when typing, adjust the pointer speed, and more.
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Liam Wilson 15 minutes ago
More Information on the Computer Mouse
A mouse is supported only on devices that have a g...
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Alexander Wang 12 minutes ago
While laptops, touch-screen phones/tablets, and other similar devices don't require a mouse, the...
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Joseph Kim Member
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More Information on the Computer Mouse
A mouse is supported only on devices that have a graphical user interface. This is why you must use your keyboard when working with text-only tools, like many programs that run from a disc before the operating system starts—these bootable antivirus programs are one example.
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Aria Nguyen Member
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While laptops, touch-screen phones/tablets, and other similar devices don't require a mouse, they all use the same concept to communicate with the device. That is, a stylus, trackpad, or your own finger is used in place of the traditional computer mouse. However, most of those devices support using a mouse as an optional attachment if you'd prefer to use one anyway.
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Sophie Martin 16 minutes ago
When you do that, you sometimes have the option to turn off the built-in mouse so you can use the ex...
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Kevin Wang Member
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When you do that, you sometimes have the option to turn off the built-in mouse so you can use the external one only—e.g., you can disable the touchpad in Windows 11. Some computer mice power down after a certain period of inactivity to save on battery life, while others that require a lot of power will be wired-only to favor performance over the convenience of being wireless. The mouse was originally referred to as an "X-Y position indicator for a display system" and was nicknamed a "mouse" because of the tail-like cord that came out the end of it.
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Sofia Garcia Member
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It was invented by Douglas Engelbart in 1964. Prior to the invention of the mouse, computer users had to enter text-based commands to do even the simplest of tasks, like moving through directories and opening files/folders. 8 Things to Consider Before Buying a Computer Mouse
Frequently Asked Questions
What is DPI on a mouse?
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Julia Zhang 11 minutes ago
DPI is like a mouse's sensitivity. At higher DPIs, the mouse is more sensitive and will move your cu...
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James Smith Moderator
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DPI is like a mouse's sensitivity. At higher DPIs, the mouse is more sensitive and will move your cursor further on your screen than lower DPI mice will over the same physical distance. You can change your mouse sensitivity in a few quick steps.
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Mason Rodriguez Member
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What is CPI on a mouse? In the mice world, CPI and DPI are used interchangeably, though they have slightly different technical definitions. When buying or using a mouse, CPI and DPI will refer to the same value.
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Madison Singh 7 minutes ago
What is polling rate on a mouse? A mouse's polling rate is the amount of times per second a mouse re...
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Evelyn Zhang Member
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What is polling rate on a mouse? A mouse's polling rate is the amount of times per second a mouse reports its position to your computer. Was this page helpful?
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Thanks for letting us know! Get the Latest Tech News Delivered Every Day
Subscribe Tell us why! Other Not enough details Hard to understand Submit More from Lifewire 8 Things to Consider Before Buying a Computer Mouse Expert Tested: The 9 Best Wireless Mice in 2022 How to Use a Trackball Mouse Wired vs.
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Wireless Mice: Which Is Better? How to Fix It When the Cursor Disappears in Windows 10 The 8 Best Mi...
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Wireless Mice: Which Is Better? How to Fix It When the Cursor Disappears in Windows 10 The 8 Best Mice for Macs How to Pair a Logitech Mouse How to Fix Windows 10 Mouse Lag Optical Mice vs.
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Laser Mice How to Set Up a Bluetooth Device on a PC How to Right-Click on a Mac Logitech G602 Gaming...
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