Lecture 6, Term 3 - 20071 COD12 COMPUTER LITERACY Communication and Connectivity.

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Presentation transcript:

Lecture 6, Term COD12 COMPUTER LITERACY Communication and Connectivity

Lecture 6, Term Internet Is a collection of local, regional, national and international computer networks that is linked together to exchange data and distribute processing tasks. Data stored in one computer is therefore accessible by another computer

Lecture 6, Term

4 Modem A device that sends and receives data to and from computers over telephone lines.

Lecture 6, Term

6 Resources provided by the Internet Web sites Various locations in the cyberspace that corresponds to a corporations, a store, a magazine and more. Search Engine Help catalog a huge portion of the data stored on servers that are connected to the Internet.

Lecture 6, Term

8

9 Resources provided by the Internet Downloading and uploading - electronic messages Bulletin boards – discussion groups Blogs Refers to a personal journal posted on the Web for access by the general public.

Lecture 6, Term

Lecture 6, Term Resources provided by the Internet E-commerce Online activities such as banking and shopping. Chat groups and instant messaging Broadcasting Multicasting technology can reach al over the world.

Lecture 6, Term Resources provided by the Internet Internet telephony Telephone-style conversations to travel over the Internet to virtually anywhere in the world.

Lecture 6, Term Uses of Internet Business Advertising Provide access to database Selling/buying Distributing products Provide after-sales service Voice and video conferencing and other forms of communication

Lecture 6, Term Uses of Internet Media and Entertainment companies Broadcast live radio and television programs. (including audio and video) Offer on-line chat

Lecture 6, Term Uses of Internet Scientists and scholars Communicate Perform research Distribute lecture notes and course materials to students. Publish papers and articles

Lecture 6, Term Uses of Internet Individual Communication Entertainment Finding information Buying and selling of goods and services

Lecture 6, Term Electronic Mail is the transmission of messages and files via a computer network.

Lecture 6, Term What is an message Is a document that is composed on a computer and remains in digital form so that it can be transmitted to another computer

Lecture 6, Term Who can use Internet? Any person with an account. An account provides the rights to a storage area or “mailbox” Each mailbox has a unique address.

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Lecture 6, Term What is an system? An system is the equipment and software that carries and manipulates messages.

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Lecture 6, Term Internet Addresses CodeExplanation eduEducational facility comCommercial organisation govNon-military government body milMilitary concern orgOther organisation netNetwork resources acAcademic institution auAustralia inIndia usUnited States of America ukUnited Kingdom fjFiji Islands

Lecture 6, Term THE END