Much about Internet

                                                       Internet Addresses

3.1  http://samolad.bestgalleries.me/4223312-7726398 Home pages have what is called an Internet Address. It looks like this: http://www.ananzi.com
. You can go to this page directly if you use this address in the address box.
The address box shows the address, or technically speaking, the URL of the page that you are currently viewing in your browser. URL stands for Universal Resource Locator, which is simply another word for address.

3.2 Internet Service Providers (ISP)
These are the people who control the access to the web. A person has to sign on with an ISP before you can get onto the Internet. Normally a monthly fee is payable but there are also contracts which reduce the monthly costs.
There are many ISP available to you, you need to investigate them and decide with which one you wish to subscribe. Once you have subscribed they help you set up your Internet. They give you a POP address from which you can receive e-mail and get connected to the web. Once you are set up you can then get onto the Internet.
http://samolad.bestgalleries.me/4223312-7726398
3.3 Internet Terminology
When working with the Internet, certain terms and terminologies are used to describe processes and concepts. A vast list of such terminology is available. Table 1 below describes a few of the more commonly used of these terms and terminologies.

Table 1
Terminology
Definition
Access Privileges
The privilege to access and make changes to folders.
Address
The unique code assigned to the location of a file in storage, a device in a system or network, or any other data source on a network.
Attachments
Multimedia files that are ‘attached’ to an E-mail; can be text, graphics, sound, video, spreadsheet, database or even an entire application.
Baud
The number of signalling elements that can be transmitted per second on a circuit. Older term being replaced by bps-bits per second
Bit
The smallest amount of information that can be transmitted. A combination of bits can indicate an alphabetic character, a numeric digit, or perform signalling, switching or other functions.
Browser
An electronic bulleting board where users can leave messages. Many BBS’s are on a membership basis.
Terminology
Definition
Chat
“Chat” is a term used to describe real-time conferencing. For example, IRC, “WebChat”, prodigy and aol chat rooms are all examples of “chat”.
Client
A computer that uses the services of another computer (a server or host). If you have a PC on your desk and you retrieve information from the World Wide Web, your PC is a client of the Web server to which it is connected.
Cybercafe
A café or bar allowing customers to explore the World Wide Web whilst having a drink or snack, usually charged per half-hour of usage.
Cyberspace
Originally used in “Neuromancer,” William Gibson’s novel of direct brain-computer networking referring to the collective realms of computer-aided communication.
Database
A multi-user collection of information. Often supports random access selectivity and multiple “views” or levels of abstraction of the underlying data.
Dedicated Line
A private line leased from a telecommunications carrier.
Download
To transfer programs or data from a computer to a connected device, usually from a server to a personal computer.
e-mail (Electronic
Mail)
Messages sent on the Internet to a particular individual.http://samolad.bestgalleries.me/4223312-7726398
File Server
A computer that provides access to files for remote users (clients).
Firewall
A firewall sits at the gateway of a private network and only lets certain types of information in from and out to the network.
Freeware
Software allowed to be distributed free by the author, but often with certain conditions applying (i.e. the
On the World Wide Web, this is the main navigation page owned by a company, organisation, university, individual etc, from which hyperlinks are made to other pages on the site (or other sites).
Terminology
Definition
HTML (Hyper Text
Markup Language)
A “tag” language in which web pages are formatted and web information is distributed.
HTTP (Hypertext
Transfer Protocol)
The method by which documents are transferred from the host computer or server to browsers and individual users.
Hyperlink
In World Wide Web pages, hyperlinks are highlighted text or images which, when selected (usually by clicking the mouse button), follow a link to another page. Hyperlinks can also be used to automatically download other files as well as sounds and video clips.
MoDem (MODulator-
DEModulator)
End of user computer interface that enables digital data to be transmitted over analog transmission facilities like phone lines.
Multimedia
Computer systems that integrate audio, video and data.
Network
A system of inter-related elements that are interconnected in a dedicated or switched linkage to provide local or remote communication (of voice, video, data, etc.) and to facilitate the exchange of information between users with common interests.
Newsgroup
A distributed bulletin board system about a particular topic. Usenet news is a system that distributes thousands of newsgroups to all parts of the Internet.
Page
A hypermedia document on the web.
PKZIP
PKZIP is a shareware compression utility for PCs. A program called PKUNZIP is used to decompress.
“POP” (point of
presence)
A “pop” is an Internet service provider’s dial-up connection for modem users, used particularly to describe local connections so modem users don’t have to dial long distance. For example, a particular ISP

might be based in Johannesburg, but have “POP’s” in Cape Town and Durban.
Server
In a network, a host data station that provides facilities to other stations.
Site
Address location of a server on the Internet.
Terminology
Definition
UNZIP
To unzip a file means to decompress, or expand a file that has been made smaller using a compression utility.
URL (Uniform
Resource Locator)
The form of the site address that reveals the name of the server where the site’s files are stored, the file’s directory path, and its file name.
WWW (World
Wide Web)
Internet system for world-wide hypertext linking of multimedia documents, making the relationship of information that is common between documents easily accessible and completely independent of physical location.
ZIP
When one “compresses” (i.e. makes a smaller but equal copy) a file using “pkzip”, the resulting file is called a “zip” file. It usually ends with the file extension “zip”.

3.4 Exercise 1: Examining the Start Page of Academy of Learning
Objective: To open the Explorer, examine and change the start page
Before you begin: Ensure that you have the Windows desktop displayed on your screen.
What you do
Comments/Prompts
1. Locate and double-click on your browser icon, which is found on the desktop
The Internet Explorer is launched and the start page is displayed as shown below.

2. You will now examine the URL Address of the current page
The address should be:
C:\AOL\AOLHOME.HTM
You will now change the current start page.

3. Click on the Tools, Internet Options commands
The Internet Options dialog box is opened.

4. Ensure that the General panel is selected
Note the Address of the Home Page: ://C:/AOL/AOLHOME.HTM

5. Delete the current address and type the following into the Address box:
File://C:/AOL/AOLHOME.HTM
(Do not attempt to underline the address) The new start page is entered into the Address box.

6. Click on the Apply button and then click on the OK button
The new start page has been set. (It will only be displayed once you restart the browser).

7. Exit from the browser
You are returned to the Windows desktop.

8. Launch the browser
The new start page will be displayed on your screen. (Maximize if necessary).
Your screen should now appear

similar to the example shown on the next page.
9. Click on the Tools, Internet Options command.
The Internet Options dialog is opened

10.
panel is selected
Note the Address of the Home page:
Next you will change the start page back to the original home page. file:///C:/AOL/AOLHOME1.HTM

11. Delete the current address and type the following into the
Address box:
file://C:\AOLHOME.HTM
The new start page is entered into the Address box

12. Click on the Apply button and
The new start page has been set.

13. Exit from the browser
You are returned to the Windows desktop.

14. Launch the browser
The new start page will be displayed on your screen.
Your screen should now appear similar to the example shown on the next page.

15. Exit from the browser
You are returned to the Windows desktop.