Your optical mouse contains Camera!

It should come as no surprise your optical mouse contains a very tiny, very low resolution camera. [Franci] decided to take apart one of his old mice and turn that tiny optical sensor into a webcam.
Inside [Franci]‘s Logitech RX 250 is an ADNS-5020 optical sensor. This three wire SPI device stuffed into an 8-pin package is a 15×15 pixel grayscale image sensor. [Franci] started this project by bringing out the Arduino and Ethernet shield. After soldering a pull-up resistor to the image sensor’s reset pin, connecting the rest of the circuit was as simple as soldering a few wires to the Arduino.
The Arduino sketch sends the image data for each pixel to a computer over a serial connection. A bit of javascript and a touch of HTML takes this pixel data and turns it into a webpage with a live view of whatever is directly under [Franci]‘s mouse.

Read More at: http://hackaday.com/2014/01/14/your-mouse-is-a-terrible-webcam/

Literally, hacking is accessing something or somebody in internet without their permission or interest. While, speaking in summary, hacking is very easy job, it is like instead of using front door, finding the hidden door of a house and hijacking the precious things. Among all the hacking, hacking via IP address is one of the most common yet powerful beginning.
You may want to hack the website and put your advertisement there or grab some database information In this type of hacking, you are playing with the web server’s computer instead of the administrator’s computer. Because, www.website.com is hosted in separate web server rather than personal computer.
ther can be accessing your friend’s computer from your home. Again this is IP based and this is possible only when your friend’s computer is online. If it is off or not connected to internet then remote IP hacking is totally impossible.
Well, both of the hacking has the same process. Let’s summarize what we must do.

1. Confirm the website or a computer you want to hack.
2. Find or trace their IP address.
3. Make sure that IP address is online
4. Scan for open ports
5. Check for venerable ports
6. access through the port
7. Brute-force username and password

Now let me describe in brief in merely basic steps that a child can understand it.

First, getting the IP address of victim.

To get the IP address of the victim website, ping for it in command prompt.

For example,

ping www.google.com will fetch the IP address of Google.com