Transcript Introduction - School Of Communication | Illinois State University

The Internet
COM 366
Web Design & Production
Brief history
• Internet began as nationwide network
for Department of Defense in 1960s
– Expanded to universities in 1980s
• Used for e-mail, transferring files
• HTML created in late 1980s
– Hypertext Markup Language
– Tim Berners-Lee
• First Web browsers were text-only
– Gopher developed in early 1990s
• Mosiac created at U of I in 1993
– First graphics-based browser
– Allowed images, sound, video
– became Netscape in 1995
Servers
• Interconnected computers
– Have special server software
• Used to transfer files over the Internet
• IP address
– Each server has a unique IP address
• Set of numbers (192.12.248.73)
– Corresponding domain name
• www.ilstu.edu
• Client
– Your computer, which connects to a server
– Displays files
Server
Client (your computer)
Internet
URLs
• Uniform Resource Locator
• Web address
http:// www.ilstu.edu /~jaglasc/COM366 /schedule.html
protocol
domain name
pathname
filename
• http
– Hypertext transfer protocol
– Language servers use to communicate
• Index files
– Index.html
– Default file
– What the server looks for when no file
name is supplied
HTML
• Stands for Hypertext Markup Language
• Text-only document
– ASCII file
• Language that browsers read
– Special tags with angle brackets
– <i> text </i>
Web browsers
• Like Netscape or Explorer
• Computer (client) software that displays
html documents
• View source
Setting up a Web site
• Transfer html files from your computer
to server
• FTP
– File transfer protocol
– Fetch for Macs, WS_FTP for PCs
– Go online, then launch
– Then upload the file(s)
Server
B
Fetch
(FTP)
A
C
Your computer
Internet
Server space
• Free space
– geocities, yahoo
– Require ads
• ISPs
– Internet service providers
– Earthlink, America Online
– Offer limited space, inexpensive
– No domain name
• Professional hosting services
– Hosts your site
– Do not provide Internet access
• Not a dialup service
– Can get your own domain name
– Offer more storage space
Domain names
• Used instead of IP
• Categories
–
–
–
–
.com commercial/business
.edu education
.org nonprofit organization
.gov government agencies
• Registration
– Usually hosting company can do it
– Network Solutions
• Request a domain name
• Give them server’s IP numbers