Scientists devised a CD with a capacity of 250 GB!!!!!

The devised CD has been made by using nanotechnology .

The Researchers from the University of Southampton use a powerful laser to etch "nanostructures" into a thin sheet of glass .

Each nanostructure is a cube roughly one micron in size and consists of platelets about 10nm in thickness which are separated by 100-200nm of space, Professor Peter Kazansky and Martynas Beresna told Reg Hardware.

When polarised light is passed through the structure, characteristics such as its radial and azimuthal polarisation - essentially, the angles at which the light wave oscillates - change.

The data is read by measuring degrees to which the output light differs from the light entering the storage structure.

Each characteristic encodes a different data set, so it's possible to store multiple data sets in the same structure. This data can be erased and rewritten with the laser too.

Comments

All windows Operating Systems which were never released!!!!!!

Windows Cairo :- Cairo was Bill gates vision of "information at your fingertips". Microsoft operating designers works on this operating system for almost 6 years 1991-1996. Cairo was announced at the 1991 Microsoft Professional Developers Conference by Jim Allchin. Microsoft also gave a demo O.S. to some pepole. Some key- feature of Cairo OS Cairo used distributed computing. User interface developed for Cairo was later used in Windows 95. 2. Nashville :- Nashville was operating system by Microsoft Windows scheduled to be released in 1996. Nashville added Internet integration features to the Windows 95 and NT 4.0 desktop. Nashville was the only operating system in which web browser (Internet Explorer 3.0) comes with inbuilt file manager. In Nashville Microsoft Office documents could be opened from Internet Explorer with the help of Activex T echnology. Wallpaper could be replaced by dynamic web-pages. [ Note:- Nashville OS beta version are availab...

What is Easter egg??

This article is Belongs to ester egg.i am sure that by reading first line one question is rises in your mind.what is the connection between ester egg and computers?? but friends easter egg is one of the most interesting thing in computer world!!! yes thats true.. before i tell you types of ester egg in computer,what they do?i will tell you what is exactly an ester ? Easter is the central feast in the Christian liturgical year. what is exactly an ester egg is ? Easter eggs are special eggs that are often given to celebrate Easter.on easter pepole paint eggs.but now adays people prefore eggs madeup of plastic or chocolate. Inside plastic or chocolate egg people hide something for children. These eggs are often hidden and then children are suppose to find them. What is the connection between Easter egg and computer world? As ester eggs are hidden by people,pare...

How to change software \ program name in "open with" option

Many people get confused or does not remember what that program does For eg Winrar name of program does not specify its functionality it became more important when we have two or more options so here is better way Step 1 open start menu type run in search bar now type regedit it will open registry editor [ Note :- be careful while changing any other entry in registry editor as registry is consider to be an d.n.a. of windows operating system any change here will change the functionality of operating system] Step 2 For vista and Windows 7 follow path HKEY_CURRENT_USER > Software > Classes > Local Settings > Software > Microsoft > Windows > Shell > MuiCache For windows 2000 (NT),XP follow path HKEY_CURRENT_USER > Software > Microsoft > Windows > ShellNoRoam > MUICache Now you can see the list full of program names Step 3 look at right column for program name to be changed here am going to change "FireFox...

Techkida

Search This Blog