Internet: There are million of computers from nearly every country in the world connected to the internet. And more millions are of internet users.
Modem: Enables the computer to transfer data over the phone line+connects the computer to the internet speeds measured in b p s bits per second.
e.g: Kbps killo=1000
Mbps Mega=1000000
Internet communication
- Dial up accounts, where you did into your internet accounts through the modem.
- ADSL People in many countries use internet to communicate. Most people write e-mail to their friends+family. Some people download software+games. Often this software is shareware and it is important to pay person who wrote it.
URL= Uniform Resource Locator.
URL specifies where the identified resource is available and the protocol for retrieving it. In popular usage and many technical documents, it is often confused as a synonym for Uniform Resource Identifier(URI), which are not required to specify how to locate the resource.
Example of URL:
- http://www.yahoo.com/ which indicates using http protocol information resides on the http://www.yahoo.com.(hos%20tmachine/)
- while http: hypertext transfer protocol is necessary for connecting two web pages across the globe.
Multimedia: Make application with sound +graphics can also put animation.
e.g: Riven is a popular multimedia game that use sound+graphics.
It is a media that contents, utilizes a combination of different content forms.
Multimedia file extension:
.avi (Auto Video Interleaved). This is MS windows usual format for video files.
.bmp (Bitmap). This can be photo.
.gif (graphic interchange format). A 256 color photo (specially for graphic).
.jpg (Joint Photographics Experts Group). It is high quality image saved in a compressed format
.wav (wave from sound) sound file for windows environment.
.mid (MIDI) song for storing large song file.
CD-ROM: Compact Disc Read Only Memory.
It is an optical technology used for storing digital information on a plastic 12 cm disc.
Alta Vista is search engine.
Search engine is a program that searches documents for specified keywords and returns a list of the documents where the keywords were found.
http: Hyper Text Transfer Protocol used for home page on the www.
FTP: File Transfer Protocol acess files+ transfer them on your computers.
Gopher: text based information retrieved system.
Telnet: connect your computer directly to another computer.
Kiosk : An Interactive kiosk is computer terminal that provides information access via electronic methods.
Business on Internet: more and morebusiness are writing web pages(HTML) or thinking.
The internet will change the way shop, make friends and so on.
To make e-business we need for:
- HTML (Hyper Text Markup Language for web page).
- Java script or VB script to write functions that are embedded in HTML.
- ASP (Active Server Page) or CGI (common Gate way interface, we write or design program to accept +to return data between client and server).
E-bussiness is conduct of business on the internet.
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