Transcript Internet
Internet
History
’60 = an invention of the US army
Universities and libraries also start to use
this communication tool
Protocol + physical network=> backbone
of the internet
’90:Tim Berners-Lee and Robert Cailleau
introduce HTML=> WWW is born
What is the Internet?
• Worldwide network
of computers and
servers
• Connected to each
other
• By satellite, modem
and cable
Host asks info – Server
has got info and
distributes it on request
Unique IP-address (cfr
156.45.78.99)
Language between PC’s=
TCP/IP-protocol
The different Services
WWW (World Wide Web)
FTP (File Transfer Protocol)
E-mail
Usenet
The World Wide Web...
Collection of PC’s that share
documents, images and multimedia
over the internet
Main feature=hyperlinks
Communicates via HTTP-protocol
(cfr TCP-IP)
Code to compose web pages =
HTML
Web Browser
Necessary to surf!
User friendly
“Translates” the HTML code to the
page as we see it.
Internet Explorer / Netscape
Web – Web Pages
Home page
Hyperlinks=>click and surf
URL (uniform resource locator)
Image Maps
Chat
Download