INTERNET SERVICE PROVIDER & IP ADDRESS

DEFINITION : A company that provides internet connection and services to individuals & organizations.

Responsibilities of an ISP
- Providing and maintaining a connection to the internet.
- Support the hardware and software needed to service that connection.
- Provide 24 hour customer service and technical support.


IP ADDRESS

What is IP address?
- A number that uniquely identifies each computers or device connected to the internet.
- IP addresses are also referred to as IP numbers and Internet addresses.

IP Usage:
- A way to find specific server or computer on the internet or a network. 
- Provide identity to a computer in a network.


IP Structure:
- Number in each group between 0 and 255.
- Commonly written in decimal.
- It is 32 bit long, each group is 8  bits long.
- For example: 128.35.0.72

IPV4 :
- IPv4 an address consists of 32 bits which limits the address space to 4294967296 (232) possible unique addresses.

IPV6 :
 - Version 6 of Internet Protocol has more capabilities than IPv4, including providing for far more IP address.




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