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Online Communication. Electronic mail (email). Electronic mail is a form of communication where mainly text based messages are exchanged by using computers attached to a network. Email can also include attachments such as a PDF document or an image file. Instant messaging (chat) .
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Electronic mail (email) • Electronic mail is a form of communication where mainly text based messages are exchanged by using computers attached to a network. • Email can also include attachments such as a PDF document or an image file.
Instant messaging (chat) • Instant messaging lets people send instant messages (text-based conversation) to each other over a network, such as across the internet by means of the relevant instant messaging software application. • There are many systems available (MSN, Google Talk etc) unfortunately they may not be compatible with one another because each company wants to format their messages in a specific way and can see no advantage in letting other IM services have access to their 'clients'. • Instant messaging may also be present on company intranets that allow employees to communicate with one another rather than email. • Another common use of instant messaging are the customer support services that appear on some organisations' website. Typically this provides an 'instant chat' service with an online (human) assistant paid to help you
Newsgroup • One of the earliest use of the Internet was to exchange messages between a group of like minded people. Even before the world wide web was created, there was a network called 'Usenet'. This is still going strong today. On Usenet, you can join thousands of newsgroups. There are at least 50,000 of them. You subscribe to the newsgroup and then begin to read and contribute to the 'threads' within each newsgroup. • A thread is a string of text based messages, from the first one that started the topic up to the latest one. The is where the first 'emoticons' such as :) (smiling face) came from and even before the mobile phone was invented, people were using text shortcuts such as IMHO (In My humble Opinion) or ROLF (Roll on Floor Laughing). • Some newsgroups are 'moderated' meaning someone is controlling what can and cannot be posted in that newsgroup.
Social Networking • Social Networking sites offer a free, personal page for you to describe your interests, a list of friends that are also on the site, favourite music, recent photographs, what's happening and so on. • The idea is for people to share their pages so that they can share news, views and offline events
Blogs • Blog is the shortened version of the word for web-log. • A blog is a website that is used like a diary. Many people create a blog and then write regularly about things they have been doing or events which have taken place. Posts often include links to other site.
Vlogs/podcasts • The 'Pod' bit refers to the iPod mp3 player that has become massively popular, the second bit - 'cast' - refers to distributing content, either factual or entertainment. • So a podcast is someone producing an audio mp3 for other people to download and listen to on their mp3 player. There are now thousands of podcasters making short 'programs' about every subject under the sun. • Mainstream broadcasters also provide podcasts of their shows and factual programs that you can download and listen to in your own time. • It is very simple to produce a podcast. Simply record your speech with a microphone. The data file then gets formatted as an mp3 file. This file is then uploaded to a server so it is available to visitors and subscribers of the site. • You can now also have 'video' podcasts that are short video clips intended for downloading and viewing offline.
voIP • What is it? • Stands for 'Voice Over Internet Protocol'. • It is a technology that allows you to make telephone calls over a Broadband internet connection.
voIP • Why was it developed? • In a sentence - to save money. • The Internet is designed to send data from one computer to another. It does not care in the slightest what that data actually is - so it could just as easily represent your voice.
voIP • How does it work? • The technology is fairly straight-forward: • a)you speak into a microphone that is connected to a sound card. b)The sound card has an 'Analogue-to-Digital converter' that translates your speech into a digital stream. c)That data is given a destination address and off it goes like any other data stream. d) The receiving computer has the right VOIP software to convert the incoming data back into speech
voIP • Advantages • 1.The advantage of VOIP using the internet is that at its most basic the system is essentially free as long as you have an Internet connection.2. The next step-up is to use a VOIP service company such as Skype. They may offer a free service if you call other subscribers and then charge for other calls.
voIP • Disadvantages • a) Both ends have to have the right software and hardware to speak to one anotherb) There is no guarantee of quality when using the Internet - no one company owns the internet, so if a part of it is broken there is no-one to call to fix it.c) It uses packet-switching so if packets get dropped along the way then voice quality drops.d) Even when fully working, it is not as high a quality of voice as a normal telephone line.e) It does not work if you have a power-cut, unlike your normal telephone.f) It may not work for emergency service numbers. Sometimes you just can't tell the emergency services where you are, so they use some standard telephone location technology to help locate you. With VOIP this is more difficult.
Wikis • A wiki is a web application which allows users from around the world to collaborate. • They are able to add, edit and delete content posted by other users. • The most famous 'wiki' is the Wikipedia encyclopedia. This is now the World's largest encyclopedia. It is believed to be as accurate as the Encyclopedia Britannica. • "Wiki Wiki" means 'rapidly' in Hawaiian
Chatrooms • A chat room is a virtual place on the Internet where people can get together and talk. They use programs which allow real time chat to take place such as MSN. • Although chat rooms can be a great place to 'socialise' and catch up with friends, many concerns have been raised over their misuse by people pretending to be someone other than themselves.
