CIS 1 - Kurtz  Santa Monica College 

THE INTERNET

 

Features of the Internet 

 

Began in late 1960's by the US Army 
There is no central structure by design 
World's largest E-mail system 
Tens of millions of host computers 
Hundreds of Millions of users
Services: E-mail, WWW, FTP, Telnet, more

 

Protocol 

 

A set of rules for the exchange of information and data 
TCP/IP common to all Internet messages

 

 

 

Electronic Mail 

 

E-mail 
Address is composed of User (account) name and domain name separated by @  
The single most important service offered on the Internet

 

World Wide Web 

 

"The Web" "WWW"  
Largest information service on the Internet 
Graphic display of online hypertext

 

Web Browser 

 

The program that runs on your computer and enables you to use the World Wide Web

 

URL 

 

Uniform Resource Locator
The Internet address for a specific document or other resource
May become invalid as resources are moved

 

Search Engine 

 

Used to locate Web information

 

Web page 

 

An electronic document on the WWW

 

Home page 

 

The starting point for a WWW site

 

Link 

 

Clicking on a link allows you to get more information 

Usually highlighted, may be a graphic

 

Bookmark, Favorite 

 

URL that has been saved for future reference

 

LISTSERV 

 

An on-line mailing list

 

USENET 

 

The network of computers on the Internet offering News Groups

 

FTP 

 

File Transfer Protocol 
Used for sending and receiving files on the Internet

 

 

 

Telnet 

 

Used to connect to a remote CLI computer

 

 

 

 

 

 

HTML

 

Hypertext Markup Language
Used to create pages on the World Wide Web
Hypertext employs links to allow users to transfer to new pages to get more information

 

 

 

 

 

 

Fully Qualified Domain Name

 

FQDN
Always ends with a top-level domain
Identifies a particular computer
Text strings separated by dots

 

 

 

 

 

 

Domain Name Service

 

DNS
Translates a FQDN into an IP address