Hide your files in jpeg format

Well, did you know you could hide your files in a JPEG file? For this, you will only need to download WinRAR. You just need to have a little knowledge about Command Prompt and have WinRAR installed.
1. Gather all the files that you wish to hide in a folder anywhere in your PC (make it in C:\hidden - RECOMMENDED).
2. Now, add those files in a RAR archive (e.g. secret.rar). This file should also be in the same directory (C:\hidden).
3. Now, look for a simple JPEG picture file (e.g. logo.jpg). Copy/Paste that file also in C:\hidden.
4. Now, open Command Prompt (Go to Run and type ‘cmd‘). Make your working directory C:\hidden.
5. Now type: “COPY /b logo.jpg + secret.rar output.jpg” (without quotes) - Now, logo.jpg is the picture you want to show, secret.rar is the file to be hidden, and output.jpg is the file which contains both. 
6. Now, after you have done this, you will see a file output.jpg in C:\hidden. Open it (double-click) and it will show the picture you wanted to show. Now try opening the same file with WinRAR, it will show the hidden archive .

Lock any folder without using any software

Paste it in notepad:

cls
@ECHO OFF
title Folder Locker
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST Locker goto MDLOCKER
:CONFIRM
echo Are you sure u want to Lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Locker "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
attrib +h +s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
echo Folder locked
goto End
:UNLOCK
echo Enter password to Unlock folder
set/p "pass=>"
if NOT %pass%==type your password here goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Locker
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Locker
echo Locker created successfully
goto End
:End

Save it as batch file(with extension .bat).Any name will do.
Now you see a batch file.
Double click it to create a folder locker.
A new folder named Locker would be formed at the same location.
Now brings all the files you want to hide in the locker folder.
Now double click the batch file to lock the folder namely Locker.
If you want to unlock your files,double click the batch file again and you would be prompted for password.
Enter the password and enjoy access to the folder.
The password here is "pass"

Create desktop icon for restart and shutdown

Do the following:
1. Right click on your desktop
2. Then in NEW click on SHORTCUT
3. A shortcut wizard will appear
4. Type this in the box:
shutdown -s -t 00
5. Your done now right click on the folder>properties>Change Icon
And then choose any appropriate icon
For restart instead of -s type -r

To Make ur more protected system

Many wud know about BIOS password and logon password

There is also another startup password for more protection

1)Open Run and type syskey
2)A "Securing the windows....." window will open.
3)Click on update button and in the opening window select password start password
4)Give a password.

This will create another password for statrup

More bandwidth in ur network connection

Most of the ppl dont know that they use only 80% of their bandwidth of their network connection....

Microsoft utilise the other 20% for its own purposes....
To use all the bandwidth follow the instructions
1)Open "run" and type "gpedit.msc"
2)It will open Group Policy editor window
3)There select Computer configuration
4)Select Administrative Templates
5)Select Network
6)Select QoS Packet Scheduler
7)There select "Limit Reservable Bandwidth"
8)It will open a New window
9)By default It would b set to "not configured"
10)Click on "enabled" and change 20 to 0
11)Then apply the settings...

Now u'll have full utilisation of ur bandwidth.....

U can have ur own Invisible folder for hiding ur stuff in ur PC

U can have ur own Invisible folder for hiding ur stuff in ur PC

1)Create a new folder anywher in u want...
2)Then hold "Alt" key and using numeric keypad type"255"
3)This will create a folder without a name
4)Then ryt click on the folder and click properties...
5)Goto customize tab......Click change icon....
6)There select an empty icon for ur folder(It 'll be in the 13th column)
7)Click apply and ok......
8)Ur invisible folder is ready for ur use!!!

Break the rapidshare waiting time .!

1. Goto the page you want to download. (the rapidshare address of your download)
2. Select FREE button
3. In the address bar put the following: javascript:alert(c=0) OR javascript:alert(c=1) 
4. Click on the "go to" button
5. Click OK to the pop-up box
6. Enter the captcha ( if asked )
7. Download Your File. Enjoy!

RFID Chips Gain Computing Skills

                              Smarter Than It Looks: RFID chips can do complex calculations

One way to do long computations with short bursts of power

In the 2000 movie Memento, the main character tries to solve the mystery of his wife’s murder, despite suffering from amnesia that causes his brain to effectively “reboot” every 5 minutes. In the world of computing, “passive” radio-frequency identification (RFID) chips have a similar problem. Dependent for power on infrequent, scavenged RF energy from a reading device, RFID chips may reboot more than once per second and then lie dormant indefinitely, waiting for the next reader to come along.

But computer scientists in Massachusetts are working on software, aptly named Mementos, that could allow an RFID to perform computations that span many power losses and reboots. The software may enable the chip to compute cryptographic protocols, leading to more secure signals. And it might allow RFID chips to be more than just data collectors. They could analyze and possibly take action based on changes to the stress on a “smart” bridge or to trends in a person’s vital signs, for instance. Such computational RFIDs could play a role in the transformation of the Internet from a network of computers to a network of things—appliances, cars, smart clothes, and so on.

“We’re working on software to make it possible to actually compute, given that our power is going to be disappearing and reappearing,” says Kevin Fu, assistant professor of computer science at the University of Massachusetts Amherst.

Mementos does two things: It makes sure that the RFID keeps working toward finishing a computation, and it also keeps the chip in a state such that if it loses power, it can quickly resume work when the power returns. One way the software does that is to have the chip perform energy-intensive tasks, such as writing data to flash memory, only when ample power (more than 2.2 milliwatts) is available. 

Ravi Pappu, cofounder of the RFID company ThingMagic, based in Cambridge, Mass., says that the work of Fu’s team is very important. 

“We have millions of computers everywhere, but computers have been chained to desks and server racks and other kinds of ­infrastructure,” Pappu says. “Rather than being constrained by dragging computers of various shapes and sizes into the real world, could we equip the real world with computing? I think what Kevin and his guys have done is an advance in that direction.”

Fu and his colleagues developed their RFID computing software on Intel’s prototype Wireless Identification and Sensing Platform (WISP), a postage-stamp-size RFID chip with specs suited for a 1980s home-brew computing enthusiast: a 16‑megahertz microprocessor, 512 bytes of RAM, and 8 kilobytes of storage (in the form of flash memory).

The amount of RF power WISP picks up, Fu says, can vary drastically. And Mementos must make programs run on WISP perform under each scenariosleep (0.2 to 2.5 microwatts); midrange (1.8 to 3.6 mW), which allows it to read from memory and compute; and active (2.2 to 25.2 mW) in which it can even write to flash memory.

“As much as possible we’d like to protect programmers from the underlying problems” of fluctuating power and regular reboots, says Benjamin Ransford, a graduate student in Fu’s lab.

Jason Flinn, associate professor of computer science and engineering at the University of Michigan, says he’s impressed by Mementos but thinks that it still has a long way to go. 

The University of Massachusetts work “asks some very interesting questions and has some preliminary ideas,” he says. “But I don’t know that they’ve solved those problems or fully validated it yet.”