INTERNET COMMUNICATION
Various form of Internet Communication :
Chatting
Conferencing (audio & video)
Net meeting
Newsgroup
Forum
Peripheral used for communication :
Web camera
Microphone
Earphone
Email : How to
Register email ?
Send messages
Attach files
Receive / Retrieve messages
Delete / Save messages
Netiquette, is the convention on electronic forums (Usenet, mailing lists, live chat, and Internet forums) to facilitate efficient interaction. Internet phenomena, the concept and its application remain in a state of flux, and vary from community to community. The points most strongly emphasized about USENET, netiquette often include avoiding cross-posting, using simple electronic signatures, and other techniques used to minimize the effort required to read a post. Netiquette guidelines posted by IBM for employees utilizing Second Life in an official capacity, however, focus on basic professionalism, maintaining a tenable work environment, and protecting IBM's intellectual property. Similarly, some Usenet guidelines call for use of unabbreviated English while users of online chat protocols like IRC and instant messaging protocols like SMS often encourage trends in the opposite direction.
Search Engine :
A search engine is an information retrieval system designed to help find information stored on a computer system. Search engines help to minimize the time required to find information and the amount of information which must be consulted, akin to other techniques for managing information overload.
The most public, visible form of a search engine is a Web search engine which searches for information on the World Wide Web.
Function :
Search engines provide an interface to a group of items that enables users to specify criteria about an item of interest and have the engine find the matching items. The criteria are referred to as a search query. In the case of text search engines, the search query is typically expressed as a set of words that identify the desired concept that one or more documents may contain
Examples :
Yahoo
Google
Alta vista
Hot bot
Task :
1. Find what is central processing unit (cpu) – copy & paste in MS Word
2. Find images of : monkey, bird, fish, map of
3. Download any video
4. Download any audio
VOICE OVER INTERNET PROTOCOL (VoIP)
Protocols used to carry voice signals over the IP network are commonly referred to as Voice over IP or VoIP. VoIP is one of the Internet technologies that allows a user to make telephone calls using a broadband Internet connection instead of a regular (or analog) phone line.
VoIP is a method for taking analog audio signals and turning them into digital data that can be transmitted over the Internet.
VoIP SERVICES
There are three different VoIP services in common use today. They are Analog Telephone Adapter (ATA), IP Phones and computer-to-computer.
The simplest and most common way is through the use of a device called an Analog Telephone Adapter (ATA). The ATA allows you to connect a standard phone to your computer or your Internet connection for use with VoIP.
The ATA is an analog-to-digital converter. It takes the analog signal from your traditional phone and converts it into digital data for transmission over the Internet.
Skype, one VoIP provider, offers free calling locally and between members, and inexpensive long-distance calls to other numbers.
IP PHONES
IP Phones look just like normal phones with a handset, a cradle and buttons. IP Phones have an RJ-45 Ethernet connector instead of the standard RJ-11 phone connectors.
COMPUTER-TO-COMPUTER
Computer-to-computer is certainly the easiest way to use VoIP. Devices needed to place a computer-to-computer Internet telephone call:
Software, a microphone, speakers or headphones, a sound card and an Internet connection preferably a fast one like you would get through a cable or DSL modem.
Except for your normal monthly ISP fee, there is usually no charge for computer-to-computer calls, no matter what the distance.
ADVANTAGES OF VoIP
As VoIP is digital, it may offer features and services that are not available with a traditional phone. If you have a broadband Internet connection, you need not maintain and pay the additional cost for a line just to make telephone calls.
With many VoIP plans you can talk for as long as you want with any person in the world. You can also talk with many people at the same time without any additional cost.
DISADVANTAGES OF VoIP
Some VoIP services do not work during power failures and the service provider may not offer backup power.
Not all VoIP services connect directly to emergency services. VoIP providers may or may not offer directory assistance or white page listings.
As VoIP uses an Internet connection, it is susceptible to all the problems normally associated with home broadband services.
Phone conversations can become distorted, garbled or lost because of transmission errors. Some kind of stability in Internet data transfer needs to
be guaranteed before VoIP could truly replace traditional phones.
VoIP is susceptible to worms, viruses and hacking, although this is very rare and VoIP developers are working on VoIP encryption to counter this.
INTERNET SERVICES :
BLOGGING
A blog (web log or weblog) is one of the popular activities on the Internet. Most of these blogs are publicly shared and the authors frequently update the content on a regular basis.
A blog is usually referred to the text produced by the author about his or her thoughts, experiences or interests.
use a consistent writing style and appropriate tone for your subject post often, though your posts are short allow your readers to eave you comments on your posts(www.blogarama.com), which categorises blogs into directories. Following are several top blogging resources you should check out:
Blogger (www.blogger.com) - owned by Google, one of the free and easiest to maintain blogging tool. TypePad (www.typepad.com) - the blog tool that provides more functionality for a minimal fee. Movable Type (www.movabletype.org) - if you have your own domain site and want to put several blogs together, this is the best choice Wordpress (wordpress.org) - an open source blogging tool that needs a bit of coding to make your blogs more interestingThe World Wide Web or the Web consists of a worldwide collection of electronic documents.
Each electronic document on the Web is called a web page which can contain text, graphics, audio and video.
An electronic mail or email is the transmission of messages and files via a computer network.
The Internet Relay Chat (IRC) is a system for chatting that involves a set of rules and conventions, and client/server software.
SEARCH ENGINES
Search engines are special websites on the Internet to help you find information you need. Different search engines will serve different purposes, for example:
Google Scholar (http://scholar.google.com/) is for searching authoritative and scholarly sites. Google (http://www.google.com/) is for searching valuable or relevant sites with rankings. Yahoo News (http://dailynews.yahoo.com) is for searching opinions on current issues. Wikipedia (http://www.wikipedia.org/) it is an open source for encyclopedia