The Internet Address

What is IP Address?

• A number that uniquely identifies each computer or device connected to the Internet.
• IP addresses are also referred to as IP numbers and Internet addresses.
• IP address sometimes is called a dotted decimal number or dotted quad.

                                                         What is IP usage?

• A way to find specific server or computer on the internet or a network
• Provide identity to a computer in a network
• Identify for a particular device/machine on a particular network
• Allows transfers of files and e-mail

                                                       What is IP structure?

• IP addresses usually consists of four groups of number each separated by a period.
• The number in each group is between 0 and 255. It is 32 bit long ,each group is 8 bits long
• Commonly written in decimal for example, 128.35.0.72
• These four sections represent the machine itself and the network it is on
• The network portion is assigned.
• The host section is determined by the network administrator 

      5 Classes of IP address A B C D and E:

• Class A : reserved for governments/ large companies
• Class B : reserved for medium companies
• Class C :reserved for small companies