Internet
The Internet was launched in 1969. He started from the local network. Let me explain what a local network. Computers with each other in a home or business are connected to a LAN. On the other hand, Wide Area Network is a combination of LANs, WANs, and individual machines around the world. All computers in the world if they met a network called the Internet. These computers are connected via different routes on ISPs. Let me explain what an ISP is. Companies offering Internet service for users of computers are called Internet Service Provider. These ISPs provide two types of connections. It is also slow speed or dial-up and the other called High-Speed. Dialup is a maximum speed of 56 kbps. Broadband connections 56K starts and go beyond 13mps (mega bits per second). ISPs offer different monthly plans for this service. Each package is based on the speed of price.
Suppose you have the setup of Internet services on your computer and turn it on, you’re already on the Internet. As in the real world Every man has a name, but the Internet each computer has a unique number called IP (Internet Protocol). This number can be used to identify a computer. So, if a computer in one part of the world wants to talk to another computer in another part of the world, this machine is speaking to this issue on another computer. It is, as these computers and computer users can communicate among themselves. If anyone knows about a number of computer i.e. IP address and connected to a computer (with the right tools), especially if the computer has a security weeks.
Hacker
That computer user to gain unauthorized access to other people computers is called hackers. This is possible if the target computer is low on security and intellectual property for the said computer is available. The question is how to obtain a number of the computer, i.e. the IP address. Here are several ways to steal or to access the IP address of a machine. Generally, if someone has access to a computer then it may be slightly punching a few simple commands. The IP address can be found during a chat session. Spam is another kind of hacking a computer. In the spam e-mails are instructed users to click on the links forged, and once they click, scripts and software can be downloaded to your computer from hackers in a row.
Hackers use different programs to other people to scan computers for the number of the computer. In this case, they will never know which number the computer they get. In such cases, the target computer to view or identity theft are used. Let me explain how identity theft does. A computer is a powerful tool in our lives. We use it to check emails, you can buy or sell goods online, and our banking system, school and many other activities of daily living do. All these activities will be by user ID and password, and is generally found that hackers. Once they get the unique IP number, download programs into the computers of other people. A bad action on piracy, location, they can be local or they can sit in other parts of the world. Hackers can be blocked by different types of technology, equipment and software say. In both cases, there is a fundamental idea and the idea is also a firewall. A firewall is like a sentinel at the entrance of a building. It stops unauthorized access to computers. The rules are setup to allow the fire wall or deny computers access the LAN and WAN.
