ISP

ISP

1. ISP stands for Internet Service Provider

2. They may offer technical support, Email, trouble shooting and webspace with the ability to access the net

3. They provide a direct connection to the internet which would be really expensive if it wasnt for ISPs as they provide a cost effective was of access.

4. PoP - Point of pressence

   • This is an access point to the internet.

5. NAP _ Network access point

   • This is a way for multiple ISPs to interact.

6. Protocols

   • Protocols are rules of comminication between any device on the Internet
     • They do this by using the IP address
   • IP - Internet Protocol
     • Rules for routing packets across the internet
     • A HEADER IDENTIFIES THE PACKET
   • TCP/IP - Transmission control protocol
     • Organises the packets for transmission and the reassembles them on the client
     • Works closely with IP
   • FTP - File Transfer Protocol
     • Allows files to be transferred between two computers on a TCP- based network.
     • Commonly used to download programs to your computer from other servers
     • Also used to upload web pages that you have created to the server that is hosting them on the internet.

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