CONTROLLING THE MOUSE WITH YOUR EYE

Most of the user of the computer suffer pain in the wrist or in fingers due to over usage of pc or laptops by infront of them whole day by typing and moving the mouse. Due to this some of the user gets muscular pain etc. The research scholars of imperial college in London have found out a solution to this problem that is controlling the mouse with your eye.

                             A small device is used for this purpose which is called as GT3D device. This device consists of a pair of glasses (like the coolers) that user must wear when you need to move the mouse with eye. And also two fast control cameras are used to keep track of your eye. The camera constantly records the movement of the pupil and moves the cursor to the direction where it points to. This device is on the development stage so the scholars demonstrated the effective usage of the device by a pong game. They also demonstrated how the surfing in net could be done using this system. The previous version devices of GT3D has some disadvantage such as you need to look on an icon for a prolonged period of time inorder to open the application of the icon, due to this when you stare on the desktop screen for some time then this automatically opens. Inorder to avoid this problem  GT3D device is sensitive so that just a look at that opens the application and they have attached the 3d facility so that the camera could detect whether your are just looking simply on desktop screen  or the user  need to open the application. The cost of this GT3D device is much cheaper (40$) than the other system input that we use.

HOW DOES RECAPTCHA WORKS

   Here in this article you will be able to see how to use reCAPTCHA in a proper manner and it helps the user to make good security for their websites. Mainly the people does not know the use of reCAPTCHA and they unnecessarily avoids it and their websites or blogs will be hacked or attacked in minutes.

Introduction

reCAPTCHA is free service which helps to digitize newspapers, books, tv shows etc. CAPTCHA is a program which tells that whether the user is a human or a computer. When we get into different pages approximately of registration forms we can see that at the bottom there will be colourful images with text. Most of the websites use CAPTCHA as a tool for protecting from spamming. The computer will not be able to read text, but humans can read the text so the people will not be able to hack into sites which is having CAPTCHA. Daily around 200 millions CAPTCHA are solved by human beings and in ten seconds we are spending our time and these type of puzzles will take around 15 lacs hours to complete the work. reCAPTCHA does exactly the same by giving some effort to solve CAPTCHA as online reading books.

Why human beings are not making positive effort of CAPTCHA's?

For making the knowledge of humans into an accessible section, we are making projects from different areas by digitizing books which were written before computer age. The pages of book are scanned and then converted into a technique known as Optical Character Recognition. Converting into a text is really useful, so that we will get images which are stored in books and which are difficult to store in devices, taking effort to download and which cannot be searched properly. OCR technique is not proper to use every time.
reCAPTCHA uses the books in a proper way, thus digitizing books by sending words which cannot be read by computers in web and it will be in the form of CAPTCHA's and human beings can read the text in a proper manner. Each word cannot be read by OCR and it will be placed on a image and it will be used as a CAPTCHA. Most of the OCR programs will give you an alert on the words which cannot be read properly . The word which cannot be read by the OCR will be given to a user in different styles and conjunction with other words and answer will be known. User will be prompted to read both word and if the user can solve it, then system shows that answer is a correct one. System will then give it to other people to test whether original answer is correct or not.
When we are running a website and it is having any problems which are related to spam, then you can put the 6yhbeyu7eumreCAPTCHA on your site. For word press applications and mediawiki applications, there are some plugins which allows to use reCAPTCHA without writing any code. For common web applications such as PHP, there are many easy to write codes for giving best solutions for your life.
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Security

reCAPTCHA is having good security installed in a proper manner and when compared to other CAPTCHA's they use some improper texts which can be attacked by a hacker in an easy manner. Most of other image comparing programs like 'MAPTCHA' are easily attacked in an easy style. reCAPTCHA uses 2 layers to protect the user by making good images. Normally the computer will not be able to read this image and it gives suggestions to users and they will make proper point.

How exactly the reCAPTCHA works?

They will first start to scan a book having many words. Then they will extract word which will not be able to ready by the OCR technique and the words are shown as improper texts and this mainly depends upon the author or the book or quality of scanning mechanism. To make good security they are then providing with some lines or wrapping mechanisms, so that it cannot be read in an easy manner. Mainly the CAPTCHA is taken from the book having two words which is having distorted texts.

CLOUD COMPUTING:

CLOUD COMPUTING:

                  Current trend we come across  in the day to day life is cloud computing .In cloud computing - Cloud refers to network in which all the computers are connected by the means of internet .In the cloud computing all the resources and files are shared among the systems and they are rendered to the user as a service.

FEATURES:

·         In the cloud computing the software need not to be installed or downloaded from the internet sites. Instead the software can be used directly by choosing what u need. This saves the downloading time and the initialization time. This also saves your valuable memory space because it consumes less or no memory space for the software to be used. 

·         The pirated products can be avoided. Since the software company release their product in the cloud computing basis the piracy is avoid to a greater extend

·          Pay for what you use is one of the main objective of this technology .The user are charged only for what they use. So the user and the companies get a satisfaction.

·         This service are provided 24*7 so that it can be used anywhere and at any time.

·         For the security of each individuals they are provided with an user id and a password. So that their privacy can be secured.

CURRENT WORLD AND CLOUD COMPUTING:

              The real time application of the cloud computing can be seen in the form of YOUTUBE. In the YouTube the videos can be seen anywhere and at any time. For the user private security they are given a user id and a password. For seeing the videos the basic software is sufficient and this can be seen anywhere.

        The next one is the Facebook-they provide various services like live chats, online videos and various other application. This are now used widely by a variety of people of different agegroups. The feature of uploading and editing the photos are some of the excellent featured services that they offer.

PROBLEMS OF CLOUD COMPUTING:

There will be some unique system called the database system which loads all the services of that they offer. Some of the hacker try to crack this database for their personal convenience and if they do so then the other user will be in a state that they could not do any of the activities. So in order to sort out this problem  there is a backup system that is if the main system is hacked the backup can be used if that too is hacked then it’s the fate and some alternative ways are their but it takes time.so the user cannot use that to their convenience at that  period of time.