Protocols and standards on the web: Difference between revisions

Revision as of 13:09, 24 May 2016

Networks^[1]

In telecommunications, a communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. These are the rules or standard that defines the syntax, semantics and synchronization of communication and possible error recovery methods. Protocols may be implemented by hardware, software, or a combination of both.

Communicating systems use well-defined formats (protocol) for exchanging messages. Each message has an exact meaning intended to elicit a response from a range of possible responses pre-determined for that particular situation. ^[2]

Big ideas in networking[edit]

What do you actually NEED to know?[edit]

There are certain standards you must know in order to complete IB diploma. These are not fully complete, in my opinion, but they are here for your reference:

3.1.7 Explain why protocols are necessary - Level 3

Do you understand this topic?[edit]

You should be able to:

Do you have an advanced understanding about this topic?[edit]

Resources[edit]

an excellent introduction to networks

References[edit]

[1] ttp://www.flaticon.com/

[2] ttps://en.wikipedia.org/wiki/Communications_protocol

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 [[file:network.png|right|frame|Networks<ref>http://www.flaticon.com/</ref>]]
-A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.
+In telecommunications, a communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. These are the rules or standard that defines the syntax, semantics and synchronization of communication and possible error recovery methods. Protocols may be implemented by hardware, software, or a combination of both.
-Network computer devices that originate, route and terminate the data are called [[network nodes]].  Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.
+Communicating systems use well-defined formats (protocol) for exchanging messages. Each message has an exact meaning intended to elicit a response from a range of possible responses pre-determined for that particular situation. <ref>https://en.wikipedia.org/wiki/Communications_protocol</ref>
-Computer networks differ in the [[transmission medium]] used to carry their signals, the communications protocols to organize network traffic, the network's size, topology and organizational intent.
-Computer networks support an enormous number of applications such as access to the World Wide Web, video, digital audio, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications as well as many others. In most cases, application-specific communications [[protocols]] are [[Network layers | layered]] (i.e. carried as payload) over other more general communications protocols.<ref>https://en.wikipedia.org/wiki/Computer_network</ref>