Apr 182013

Have you ever thought what would happen after your death? Are you worried about whether there will be anyone who will remember you after your googledeath or not? If so, we have a great news for you. You won’t need to stay worried since Google, one of the top companies of the world, will remember you even after your death. It will store and save your information even after your death. Google has invented such a miraculous service which will preserve the materials, data and information of its users even after they are no more remaining in the world. Google’s Digital Afterlife service will preserve your emails, personal chat logs etc. forever and these materials will only be used according to your digital will.

For the smooth commencement and running of Digital Afterlife service, Google has started to do ask its users about how would they like Google to preserve their digital data and information. In this new service of Google, the Inactive Google Accounts Manager may ask for the digital data and information owned by the users of inactive and deleted Google accounts.

From now on, a new option will be added in the ‘Account Settings’ page of Google users. In this option, the users will be able to give permission to share data of any family member or friend. The Google users will even be able to delete their accounts and not share their digital data and information with other users. Google has even clarified to its users about when will it provide Digital Afterlife service to the Google users and after how many days will the alerts about digital bill be stopped?

After that, the Google user will be able to share his/her data to maximum ten users even after his death. Then the users who receive the data will be able to use that data as their wish.

Google has also introduced ‘Burn’ option for its users which will enable the users to delete their data after their death.

Apr 182013

A mouse can defined as a hardware device which is used for providing input to the computer. It is a mouse-like device which allows the user to control the cursor the manipulate data without the use of complicated commands.

Types of Mouse Technologies

  1. Mechanical Mouse – Mechanical mouse requires to be placed on a flat surface in order to work properly and efficiently. The distance and speed of the rollers inside the mouse determine how far the mouse cursor moves on the screen depending on the software configuration.
  2. Optical Mouse – Optical mouse require special mouse pads which contain grid patterns. A sensor inside the mouse determines the movement by reading the grid as the mouse passes over it while emitting a beam of light from a Light Emitting Diode (LED) or sometimes a laser. This type of mouse is more accurate and efficient than the ordinary mechanical mouse which relies on the traction between the mouse ball and the roller. A drawback of optical mouse is that it can create problems due to bright lights. New optical mice no longer have the drawbacks of earlier optical mice and are capable of being utilized on any type of surface. In comparison to the traditional optical-mechanical mouse, the optical mouse is the better solution for a computer mouse.
  3. Optical-Mechanical Mouse – The optical-mechanical hybrid consists of a ball which rolls a wheel inside the mouse. This wheel contains a circle of holes and or notches to read the Light Emitting Diode (LED) by a sensor as it spins around when the mouse is moved. This mouse is much more accurate than the mechanical mouse. This mouse is now the most commonly used mouse with Personal Computers (PCs) and Macintosh computers.
  4. Bus Mouse – A bus mouse comes with its own interface card. Older computers which do not contain a PS/2 (Personal System/2) port dedicated to a mouse respond to mice attached to the serial port. Most computers had only two serial ports, and typing one up with a mouse could cause problems for some users. Having a dedicated card for the mouse freed up a serial port for an external modem or other serial device.

How does a mouse work?

Mouse mechanism

Working Mechanism of Mouse

The optical-mechanical mouse’s operation is fairly simple. As we can see in the illustration, the mouse movement is tracked by four parts. As the mouse is moved, the ball rolls in the direction of the movement which, in turn, moves the roller (in X or Y axis). As the roller begins to rotate, so does the chopper or gear. The gear has small notches within it or around the edges of it; as it rotates; light shines through the openings which is then detected by the two light sensors which then sends the computer a signal of that movement. The offset of the light received by the two light sensors determines the direction of each axis.
Within the mouse, we will find a total of two rollers and choppers/gears. Each roller represents an X or Y axis which is the horizontal or vertical movement of the mouse error.