COMMUNICATION…IS IT IMPORTANT? Communication is the act of exchanging information through different means eg: speech, visuals, hand signals, written, or behaviour.
Exercise – For more information click on the link below to read more: http://en.wikipedia.org/wiki/Communication
A few reasons why we need to communicate with others are: to express ourselves, to teach others, to learn, to influence, to share, to work…and probably the most important, to live! Try not to communicate – what do you think would happen? It isn’t easy to do because communication has to happen in one form or another for us to share information, ideas and convey what we need, want or require.
The way we communicate has definitely evolved from prehistoric days of cave drawings and smoke signals to the first letter sent via post in the 6th century; the invention of telegrams and radio in the 1800’s to the introduction of email and internet in the 1980’s.
Exercise – For more information click on the http://en.wikipedia.org/wiki/History_of_communication
We are now in the “digital age” which means that we use computers and digital cellphones, devices and the Internet (also known as “technology”) to communicate quicker and more effectively.
Exercise - Click on the link below to read DCT info by the Otago Polytechnic Community Learning Centres. An excellent read! http://clcs.weebly.com/digital-communication-technologies-dct.htm
WHAT ARE DIGITAL COMMUNICATION TECHNOLOGIES? NZQA Definition:
Digital communications technologies (DCTs) refer to digital tools that enable interaction and communication. These may include but are not limited to – email, Short Message Service (SMS), Multimedia Message Service (MMS), Voice-over-Internet protocol (VoIP), social software, blog, wiki, forum, usenet, mailing lists, websites.
SECTION B TYPES OF DIGITAL COMMUNICATION TECHNOLOGIES Let’s find out more about DCT’s!
Exercise – Definitions
• Ensure your DCT NOTEBOOK is open. • Find the definitions of the DCT’s below by going to Google and searching for the specific DCT definition, eg: “mobile phone definition”. • Create a list of definitions in your notebook of the ones you were unsure of. • Include any other DCT’s that you know of or that you come across while you are searching for definitions.
ïƒ¼ Mobile Phone (eg: Phone calls, SMS, MMS) ïƒ¼ Smart Phone/Devices ïƒ¼ Social Networking (eg: Facebook, Linked In) ïƒ¼ Photo/Video Sharing (Instagram, Youtube, Flicker) ïƒ¼ VoIP (eg: Skype, Google Talk) ïƒ¼ Email ïƒ¼ Blog (eg: Twitter, Vlog, Glogster) ïƒ¼ Discussion Board
SECTION A OVERVIEW OF THE INTERNET The Internet is often described as a network of networks or a global network. It consists of many hundreds of millions of computers connected across the world. The Internet is an international tool because it is used by people in over 100 countries, using many different languages. It connects millions of people who are involved in business, education, government, the arts, research, media, politics, religion, entertainment, sport, and many other human pursuits! The Internet is not owned or regulated by any controlling organisation. Individuals or organisations make their own decisions about what to publish on the Internet, and how they will use the Internet to meet their particular needs. For this reason, the Internet can also be described as being author driven
. THE WORLD WIDE WEB The World Wide Web (also known as the Web or WWW) is the part of the Internet that supports specially formatted documents called HTML (or HyperText Markup Language) documents. Organisations that are part of the World Wide Web publish their documents as Web pages using HTML so that people can access them easily using a Browser. There are a number of Standard User Protocols which are simply procedures or rules in order for the Internet to work properly. They are standard rules that can be used to transfer files and information across the Internet. HTTP, as mentioned above, is one type of protocol. Other examples are HTTPS, FTP (File Transfer Protocol), IP (Internet Protocol), POP (Post Office Protocol), IMAP (Internet Message Access Protocol), etc.
HTML documents are transferred between computers that are part of the Web using a special transfer protocol called HTTP (HyperText Transfer Protocol). Organisations that need special security (for example banks) for information transferred across the web can use HTTPS (a secure form of HTTP). Each web page or document on the World Wide Web is referenced by its URL (Uniform Resource Locator). The URL states: • how the web page or document can be located, and • what the location of the web page or document is
For example, the MIT Charter document on the MIT website has the following URL:
http://www.manukau.ac.nz/About%20Us/charter.pdf Document Name Directory Path Host: Domain Name MIT Website Address Accessed by: HyperText Transfer Protocol Web pages often contain hyperlinks (or links)
Web pages often contain hyperlinks (or links). These are connections to other web pages or documents on the World Wide Web, and these allow users to surf across the web from page to page by clicking on the links. The links can be text hyperlinks (hypertext) or they can be media hyperlinks (hypermedia) such as graphics, video, or sound.
A Browser (or Web Browser) is software that locates and displays Web pages. Examples of popular browsers are Safari, Google Chrome, Firefox and Internet Explorer.
USES OF THE INTERNET The Internet has many useful functions. Three examples are:
Searching for Information - Computer users can search the Internet for many different types of information; for example text documents, sound files, video clips, and images. Searching involves using a browser and a search engine. A search engine is software that allows you to find web pages on a particular subject by searching the Internet using keywords. Examples of popular search engines are Google, Bing and Yahoo.
Email - Email was one of the first services to developed for the Internet, and today is one of the most widely used, and useful features of the Internet. Email allows people to communicate and share information with other people around the world, quickly, cheaply and at any time.
Multimedia Applications - Multimedia is now an important part of the Internet. The ability to add graphics, video, animation, and sound to web pages means that information can be presented in a much more interesting manner than when using only text.