The
www is a distributed browsing system
originally developed at European laboratory for particle physics (CERN) by research
scientist Tim burners – lee in 1993.
The internet had been around for years but it was not easy for people to share
the information on all of those networked computers. Berners – Lee wanted to create a system that would allow one –
click access to document stored on remote computers. He designed a system for
giving Internet document unique addressees, wrote the HTML Language for
encoding and displaying documents and built a software browser for viewing
those document from remote location.
INTERNET ACCESS OPTIONS
Direct Connection
In many Department and businesses
the computers have a direct (dedicated) connection to the internet through
a LAN (Local Area Network). A direct connection offers several advantages. You
can take full advantage of internet services without dialing in.
Dial Up
Connection
If your computer isn’t directly connect to the
Internet, you can temporarily connect to an internet host through a dial up connection using a Modem (Modem
using for converting Analog signal to Digital and Digital signal to Analog) and
standard Telephone lines. The time honored method one that works even with
ancient equipment and questionable phone lines is called dial up terminal
emulation. A typical connection through a modems and Telephone service is much
slower (and often less reliable) than a direct internet connection. While
modern modems are theoretically capable of delivering data at 56 kbps. They’re
usually much slower when connected to typical noisy phone/lines.
Broadband
Connection
Today
millions of internet users connect via Digital
Subscriber Line (DSL) and Satellites.
These modern alter natives are often called broadband connection because they
have much higher bandwidth there standard modems connection many broadband
services offer another big advantages to users; They can be continually
connected.
Internet Browsers
The Internet
browser. This is the program that locates websites for you and
allows users to maneuver around (surf) the World Wide Web and view
web pages. The two most popular today are Netscape Navigator and
Microsoft's Internet Explorer though Mosaic was the first and
still used by some people. Opera,
Mozilla, Farscape are another. Before graphic browsers Lynx was the
most popular browser and is still available for text browsing. Some ISP have a proprietary
type of browser though most have given up this practice as it limits the
users abilities to browse the Internet.
Type the URL (Uniform Resource Locater) or Web Address of
the website that you want to visit in the address bar of your browser and
press Enter or click Go. Collect
your favorite websites by adding them to your Favorites or Bookmarks. To
go to a Favorite or Bookmark, click on the menu and click on the link.
Why would you want to use it ( Internet)?
There are so many things you can do and participate in once
connected to the internet. They include using a range of services to
communicate and share information and things quickly and inexpensively with
tens of millions of people, both young and old and from diverse cultures around
the world. For example:
• You'll be
able to keep in touch and send things to colleagues and friends using
electronic mail, internet telephone, keyboard chat and video conferencing.
• You can
also tap into thousands of databases, libraries and newsgroups around the world
to gather information on any topics of interest for work or recreation. The
information can be in the form of text, pictures or even video material.
• This
means you can stay up to date with news, sports, weather and any current
affairs around the world with information updated daily, hourly or instantly.
• You can
also locate and download computer software and other products that are
available in cyberspace
• You can
listen to sounds and music, and watch digital movies
There
are also a growing number of interactive multimedia games and educational
tools. And as well as using the Internet for receiving things you will be able
to publish information about your school, hobbies or interests.
There are 4 things that are necessary to "get on the
internet" with a full graphic interface (picture, sounds, animation,
etc...).
• A
computer - preferably with a fast processor (around 100 MHz or more) and lots
of memory (16 MB or more)
• A modem –
(Internal or External)
• Browser
Software (Eg. Internet Explorer, Netscape Navigator, Opera)
• An ISP -
An Internet Service Provider is a service that connects your home or office
computer to the Internet and Telephone Line
Once you have purchased an account with an ISP you will be
given an account name. This is often your email address as well. You will also be given a password
and should also be provided with instructions. Protect your password as you
would any personal identification number (PIN) number. The ISP will also provide information on how
to configure your software. This can be simple or difficult depending on your
Operating System. Once configured you simply run the software to connect your
computer's modem to the ISP's modem, giving you access to the Internet.
What is the Internet?
The internet is made up of millions of computers linked
together around the world in such a way that information can be sent from any
computer to any other 24 hours a day. These computers can be in homes, Forces,
schools, universities, government departments, or businesses small and large. The
internet is often described as 'a network of networks' because all the smaller
networks of organizations are linked together into the one giant network called
the internet.
The internet has developed a very
strong community base where information, software and expert advice are freely
shared and for this reason users have developed a very strong protective stance
on freedom of speech, freedom from commercial interests, netiquette and
unsuitable material on the web.
The History
The net has actually been around for over 40 years. It all
began in the US during the Cold War, as a university experiment in military
communications. By linking lots of computers together in a network.
At
first each computer was physically linked by cable to the next computer, but
this approach has obvious limitations, which led to the development of networks
utilizing the telephone system
Apply Design Template
Applies one of the PowerPoint design
templates to your presentation or uses one of your own presentations as a
template. Design templates contain color schemes, slide and title masters with
custom formatting, and fonts designed for a particular look. To do this, go to
Format _ Slide Design
Slide Show
This will allow you to run your slide show,
beginning with the current slide if you're in slide view or the selected slide
if you're in slide sorter view.
Slide Show _ View Show
View _Slide Show or
Press F5
Custom Animation
Custom Animation option will allow you
to add or to change animation effects of a selected slide. Animation effects
include sounds, text and object movements, and movies that occur during a slide
show. To do this, go to
Slide
Show _ Custom Animation
Inserting a Picture
To insert a picture use one of the
following commands Click Picture
button in Picture Toolbar
Insert
_ Picture _ Form File








