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40 - Internet and online security
connection is recommended only if you have limited use of the internet as the connection
speed is low and connection time is typically charged per hour.
DSL (e.g. ADSL)
DSL (Digital Subscriber Line) is an ‘always-on’ connection that runs over the phone line.
As DSL and phone do not use the same frequencies, you can use your telephone at the
same time you are connected to the internet (this requires a ‘micro-filter’ on each
telephone socket to avoid interference). To be eligible for DSL, you must be located near
an DSL-equipped phone exchange (service is sometimes unavailable in rural areas).
Connection speeds vary depending on your location, but DSL generally provides very fast
and reliable internet connection. As the connection is always-on, it is generally charged
at fixed monthly rates.
Cable
A cable connection provides fast and always-on internet service via a cable television
line. This service is generally available in large cities. You can use your telephone and
watch cable TV at the same time you are connected to the internet.
Network connections
A LAN (Local Area Network) is a group of computers (for example, within an office building
or home) that share a common communications line and resources. When you set up a
network, you can share files, peripheral devices (such as a printer) and an internet
connection. You can set up a LAN using wired technologies (such as Ethernet) or wireless
technologies (such as Wi-Fi or Bluetooth).
Note
A DSL connection requires an appropriate modem. A modem is usually provided by the ISP when
you register. Many of these modems include an ‘router’ that provides network and Wi-Fi access.
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