revision for exam

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what are weblogs?	these are frequently updated online journals with diary-like entries which allow people to express their thoughts and feelings and give details of their daily activities. Typically, a blog includes text, photos and sometimes video.
what are microblogging sites?	These are sites which allows users to create and exchange really short text entries. A popular example of this type of site is Twitter™
what is a wiki?	These are websites that provide information that visitors to the site can extend and edit. They allow users to share information and are useful for research. The best-known example of a wiki is Wikipedia, the online encyclopaedia which can be updated by contributors.
what is a chatroom?	Online communication within communities is sometimes referred to as chat . Some of the large interactive communities where people take part in the same conversation or type of chat at the same time are known as chatrooms .
what is a podcast	Podcasts are a series of audio or video files that can be downloaded from the internet. If video is published in episodes like a blog, then this process is known as a vlog (video blogging). YouTube is an example of a video-sharing website where individuals can share vlogs.
what is a network of friends?	A collection of people who jointly keep up-todate contact online. Sometimes this may be a specifi c network, such as The National Youth Science Forum, or it may be more general, like a group of friends keeping in touch through Facebook.
what is netiquette?	Short for ‘internet etiquette’ or ‘network etiquette’. It is a set of conventions covering the use of networks used to interact with other people. The conventions are designed to prevent people causing annoyance or offence to others.
what is a virtual world?	An online community which meets in a computer-generated world; for example, the large multi-player online games.
what is instant messaging?	Instant messaging provides a way to exchange textual messages as an alternative to the telephone and at a fraction of the cost. As messages are sent in real time, responses can be received instantaneously. However, instant messaging does have its disadvantages: • emotions are better expressed in person and can sometimes be miscommunicated within an instant message that is sent quickly • viruses can be spread by instant messaging.
what is voice over internet protocal?	Voice over Internet Protocol (VoIP) allows people to interact in real time using voice and/or video messaging, and is available between any two points in the world. For internet-only conversations, there is no additional cost at either end. Skype™ is an example of a service that uses VoIP. Being able to contact relatives and business colleagues on the other side of the world at relatively low cost is the biggest benefit. VoIP software is often used by businesses for online conferences and meetings. This reduces travel costs, travel time (and therefore loss of productivity during this time) and the cost of hiring a venue. As with all new technology, VoIP has its limitations: • Reliability. VoIP service is dependent on the quality and reliability of your broadband service and may not work if there is a power cut. • Voice quality. Voices can sometimes be distorted or there may be long pauses between questions and answers. • Security. As with all internet technologies, identity theft, viruses, spamming and phishing are all potential threats
what is an online community?	A virtual community which exists only online. It may be open to anyone (e.g. a bulletin board) or restricted by interest (e.g. various scientifi c communities).
what is a type of online communication?	Email, messaging, news groups, social networks, conferencing, blogs, vlogs
what is a form of real-time infomation?	Timetables, news, sport updates, weather reports, travel news
what is online commerce?	Banking, auctions, online sales and purchases, publishing
how does the goverment use online services?	Tax returns, e-voting, applications for grants or benefits
what forms of education is there online?	Online learning, online training, manufacturers’ online tutorials
how would businesses use online services?	Business networks, collaborative working, video conferencing
in what ways are entertainment a form of an online service?	Multi-user games, radio and TV players, video streaming
what are the types of online advertising?	search engine results pages, banner and pop up advertising, email marketing e.g spam and unsolicited bulk emails and pay-per-click advertising
what is pay-per-click adverting?	Pay-per-click (PPC) advertising is a form of online advertising. It involves websites or web pages hosting ads for other companies. If a surfer clicks on an ad, they will be re-directed through to the advertiser’s website. The website or web page provider will receive a payment for every ad which is clicked on.
what is instant messaging?	is a way to exchange textual messages as an alternativeto the telephone and at a fraction of the cost.
what does VoIP mean?	Voice over Internet Protocol
what does compressing a file do?	it compresses a large file that may be too large to send to someone or will take a while to reach them so compressing them makes it easier
what is a store and forward system?	this is when you send an email and the person you send it to is not signed in so the email is placed into storage until the recipent is signed in and then it forwards the message from storage to their email.
what are the advantages of email?	it has an easily accessable address book, can be used to send attachments such as pictures, videos and music files it can also be sent to multiple peolple
what is a CC?	a CC is a carbon copy which means that you copy someone into the recipenets field meaning that they can be seen by other people who also recieved the email
what is BCC?	a BBC is a blind carbon copy this means that the person who recieves the email will not see that you have sent the email to other people aswell

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