Skip to main content

How do optical mouse work on Computer

How do optical mouse work on Computer



How do optical mouse work on ComputerHow do optical mouse work on Computer - Mouse is generally used with computer for pointing, clicking, browsing, rolling up & down objects present on the screen. The mouse can be connected with computer via wire or Bluetooth device. There are two popular types of mouse present in the market. They are Wheeled mouse and Optical mouse. Both of them are designed to do same work. Since LED based optical mouse is more reliable and user friendly.


The computer users do not prefer wheeled mouse much compared to optical one. Optical mouse was developed by Agilent Technology and launched in market on late 1999. The optical mouse has several advantages over wheeled mice which is discussed below.



  1. Since optical mouse do not contain any movable parts, reducing any chance of failure.

  2. Optical mouse does not require any special surface, like that of mouse pad.wh

  3. It does not allow dirt to get inside the mouse and interfere the tracking sensors.



Working Principle of Optical Mouse: -


The working of optical mouse depends upon some electronics device embedded inside it. It can work on any surface. The devices it contains are Camera, LED, CMOS sensor and a special Processor. The tiny camera takes 1500 pictures per second. It contains a red LED light that bounces light off that surface onto a CMOS sensor. The sensor sends each picture for analysis to a special processor called DSP (Digital Signal Processor). The DSP has the capability to detect and compare present and previous patterns.


Based on the changing pattern, the DSP determines how far the mouse has moved and sends the respective coordinate to the computer. As a result, computer moves the cursor on the screen. The event occurs hundred times in each second making the cursor move smooth.


The original optical-mouse bounced a focused beam of light off a highly-reflective mouse pad onto a sensor. The mouse pad possesses a grid of dark lines. Each time the mouse was moved, the beam of light is interrupted by the grid. Whenever the light is interrupted, the sensor sent a signal to the computer and the cursor moved accordingly.

Popular posts from this blog

Fix Windows could not find a driver for your network adapter error

Fix Windows could not find a driver for your network adapter error


A Computer run smoothly with the coordination of Software & Hardware. In the absence of any one it will not run at all. Software being the Master utilizes each hardware attached to the System. And each hardware is operated with the help of Device Drivers installed in it. Operating System (OS) uses these device drivers to control & utilize each hardware when needed. Each hardware connected to the system must have their own Device Driver installed. A device driver is a program to initiate a hardware when required by Operating System.




Suppose, you want your PC to connect to the Network, it can only be possible when your PC has network related Device Driver. These Device Drivers are easily downloaded from Manufacturer Websites. In this article we focus on Network related problem. Suppose, your PC not obtaining Network connectivity. And each time you are getting an error message saying "Windows could not find a d…

Fix This Site Can’t Be Loaded from The Cache Chrome Error

Fix This Site Can't Be Loaded from The Cache Chrome Error


This Site Can’t Be Loaded from The Cache - Today, there are several browsers available with extensive features on it. Each browser has its own importance and working principle. Some of the popular browsers available online are Google Chrome, Mozilla Firefox, Opera Mini, Internet Explorer, UC Browser, Safari, Microsoft Edge, Swift fox etc. The popularity of these browsers depends upon the features available in it.

Among them Google Chrome is the newest and mostly used browser around the world. Holding lots of feature make it more complex and hence more prone to errors. The types of error come up with the level of complexity of the program. If you are Chrome user and facing one of such error then read the full article. In this article, we focus on an error saying "This site can't be loaded from the cache". The explanation included with this error will be "The saved (cached) copy of this site was unreadable&qu…

Change Facebook Profile Picture Leaving All Unknown

Change Facebook Profile Picture Leaving All Unknown


Change Facebook Profile Picture Leaving All Unknown - Today, we spend lots of time in Social media platforms such as WhatsApp, Facebook, Instagram, Skype, YouTube, Twitter etc. We love to share Images & Videos with our friends via these platforms. These applications are largely used on Smartphones. We need to download concerned apps from inbuilt software, Play Store in Android Platform.


After downloading the App, we create an ideal account with a profile picture. We join the network by sending friend request. When request is accepted, we are added to such a community. In this article we take a close look on Facebook. Facebook is vastly used all around the world. Two person residing miles away can also share their views easily.

Change Facebook Profile Picture Leaving All Unknown

Whenever we open Facebook, lots of Images & Videos are seen with gentle scroll. In this article we focus on an interesting thing say Profile Picture. In F…