Communication on The Internet

Email clients and servers~ This can be hardware or software based. When you send and email or receive and email you use an Email client. There are some software that are designed to hand emails only.Your email client is also what communicates with the email servers. Some programs will sort the email for you so you don't have to do it yourself.

How email is delivered over the internet~   When you send your email it has to go through simple mail transfer protocol. A protocol is a set of rules for how two computer communicate. Send the information through a Domain Name Server which asks for the IP address of the computer.There are two types of mail that is coming into a sever  POP3 and IMAP. the difference between them is  POP3 you have to download it from the server to your computer.  If you get an email from IMAP server the email stays on the sever until you delete it.

How Instant Messaging Works  it has been around since the early 1990s. It was original small chat rooms for people that wanted to talk over the internet in real time. before you can instant message you must first download the client software for the service you want to use. then you have to run it so you can connect to it and the server. when you login your client sends the server your IP address. The server stays out of the IM process because you client has all the information it needs.