E tech

WEEK 1

Technology (digital) literacy -The ability to use digital technology communication tools or network to locate, evaluate , use and create information. Information and communication technology (ICT) deals with the use of different communication technologies such as mobile phones,telephone, internet,etc. To locate save send and edit information. World Wide Web – an information system on the internet that allows documents to be connected to other documents by hypertext links enabling the user to search for information by moving from one document to another. Web 1.0 -static web Web 2.0 -dynamic web Web3.0 -semantic web Web 1.0 -when the world wide web was invented most well pages were static. Static (also known as flat page or stationary page) in the sense that the page is “as cannot be manipulated by the user. The content is also the same for all user. This is referred to as web 1.0 Web 2.0 -web 2.0 is the evolution of web 1.0 by adding dynamic web pages-the user is able to see a website differently than others. Examples of web 2.0 include social networking sites,blogs,wikis,video sharing sites posted services and web applications. Features of web 2.0 1. Folksonomy. It allows users to categorize and classify/arrange using freely choser keywords. (e.g, tagging) popular social networking sites as twitter,instagram,facebook,etc. Use tags that start with the pound sign (#) this is also referred to as hashtag. 2. 3. Long tail. Services are offered on demand rather than on a one-time-purchase. In certain cases, timed based princing is synonymos to subscribing to a data plan that charges you for the ammount of time you spent in the internet. Or a data plan that charges your the amount of bandwith you used. 4. User participation . The owner of the website is not the only one who is able to put content. Others are able to place a content of there own by means of coment, reviews and evaluation. Some websites allow readers to comment on a article, participate in a poll or review a specific product (e.g, amazon.com,online stores). 5. Software as a service. (Saas) user will subscribe to a software only when needed rather than purchasing them. This is a cheaper option if you do not always need to use a software. 6. Mass participation. It is a diverse information sharing through universal web access. Since most user can use the internet. Web 2.0’s content is based on people from valiurs culture. WEB 3.0 AND THE SEMANTIC WEB the semantic web is a movement led by the world wide web consortium (W3C) The W3C standard encourages web developers to include semantic content in their web pages. The aim of web 3.0 is to have machines (or servers) understand the users preferences to be able to deliever web content specifically targeting the user. SEVERAL PROBLEMS OF WEB 3.0 1.Compatibility HTML files and current web browsers coould not support web 3.0 2. Security The users security is also in question since the machine is saving hi or her preferences 3. Vastness The world wide web already contains billions of web pages. 4. Vagueness Certain word are inprecise. The words “old” and “small” would depend on the user. 5. Logic Since machines use logic there are certain limitations for a computer to be able to predict what the user is referring to at a given time