PROTOCOLS
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Protocols are rules that describe how clients and servers communicate across the Internet. They are similar in concept to diplomatic protocols - eg who speaks first and who bows to whom.
HYPERTEXT TRANSFER PROTOCOL (HTTP)
This protocol transfers web pages from a server to a client. It transports HTML documents across the Internet, requiring a client program at one end - a BROWSER - and a SERVER at the other end - both running TCP/IP.
This protocol is a set of rules required to exchange files, text, images, videos and multimedia content across the internet.
This protocol transfers web pages from a server to a client. It transports HTML documents across the Internet, requiring a client program at one end - a BROWSER - and a SERVER at the other end - both running TCP/IP.
This protocol is a set of rules required to exchange files, text, images, videos and multimedia content across the internet.
ELECTRONIC MAIL - Email
Electronic mail involves two mail servers - an 'outgoing' and an 'incoming'.
Electronic mail involves two mail servers - an 'outgoing' and an 'incoming'.
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OUTGOING MAIL SERVER
Sending an email |
INCOMING MAIL SERVER
Receiving an email |
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SIMPLE MAIL TRANSFER
PROTOCOL (SMTP) |
POST OFFICE PROTOCOL (POP)
The latest version is POP3 INTERNET MESSAGING ACCESS PROTOCOL (IMPAP) More powerful, allowing sharing of mailboxes and multiple mail server access. The latest version is IMAP4 |
To send and receive an email, there must be an account and a password.