In 1969 Department of Defense started experiment to link computer systems together. This was called ARPAnet.
In early 1980’s ARPAnet grew into early internet – mostly universities and research sites funded by the National Science Foundation and the Dept of Defense
By 1990, Internet became commercialized and available worldwide
Connecting to the Internet
Phone Line Connection
Internet Service Providers such as AOL
Speed is relatively slow
Monopolizes telephone line
Cost is low
Internet Service Providers include Time Warner, Verizon
Speed is fast
Telephone calls can be received when online
Cost is more than phone line
You've probably seen news or advertising about cell phones and PDA’s that let you receive and send e-mail.
This seems a logical next step, it uses technology called
Wireless Application Protocol ( WAP )
WiFi - Hotspots
If you've been in an airport, coffee shop, library or hotel recently, chances are you've been right in the middle of a wireless network. Many people also use wireless networking, also called WiFi or 802.11 networking, to connect their computers at home, and some cities are trying to use the technology to provide free or low-cost Internet access to residents.
In the near future, wireless networking may become so widespread that you can access the Internet just about anywhere at any time, without using wires.
Browser allows user to find, view, hear and interact with material on the Internet
Microsoft Internet Explorer
URL - address of the web site
Saving a home page (see handout)
How to Find Information
Entering a web address or URL
Takes you directly to a web site
Organize the Internet by subject
Information on a variety of topics
Tool to locate information
Uses keywords to search
Google is popular search engine but there are many others
Validity and Security of Information
Just because you find something on the Internet, it doesn’t make it true