Hacker is a computer enthusiast / professional having deep knowledge about hardware and the operating system in use. He intrudes a system, just to learn about it's functioning. Hackers study systems and report security loopholes in the system software, so that the software developers can release a security patch for the problem.

Hackers are commonly misunderstood and hated as a cracker. Cracker is one who intrudes into a system and damages / erases data with the help of knowledge he acquired from some websites / hackers.

Ping (Packet INternet Groper) - Checks whether the distant computer is alive and about it's response time. To get the IP address, type at the command prompt when you are online as, C:/windows>ping www.bizhat.com followed by Enter key.
It will display : Pinging bizhat.com [122.168.11.13] with 32 b data with response time of 3 ms.

Similarly, C:/windows>tracert www.bizhat.com traces route to the site.

Hacking related sites : www.antionline.com, www.10pht.com