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Open network Closed network
It is part of the open network, but it
It is open and accessible to all
is specific to a specific part
Ex: internet
Ex: school lab
World Wide Web (WWW): is part of the internet network, made up of web pages
that people can navigate.
Ex: The Egyptian knowledge bank (EKB)
A timeline of the technological development of the internet
➢ 80s (Dial up internet connection)
Used phone line to connect to internet, it’s slow but stable connection.
Couldn’t use phone when on internet.
➢ Late 80s (Digital Subscriber line (DSL)
A high-speed connection that uses phone wires to connect to the internet.
Allowing the phone and the internet to be used simultaneously (at the same
time).
➢ 90s (Emergence of the world wide web)
.
WWW is a large set of web pages that are linked to each other using hyperlinks
➢ 2000+ (Wi-Fi devices)
You can access the internet from your smartphone through Wi-Fi, Portable
internet service and Hotspots.
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