Acer Aspire ES1-711 user manual DSL e.g. Adsl, Cable, 3G Wwan or Wireless Wide-Area Network

72 - Internet and online security

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.

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.

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.

3G (WWAN or 'Wireless Wide-Area Network')

A 3G connection allows you to use cellular networks (such as those used by a mobile phone) to connect to the Internet while away from home. The socket for a SIM card may be built in to your computer, or may require an external device, such as a USB modem or even an appropriately equipped mobile phone.

Note

If your computer includes a SIM card slot, you require a compatible SIM card and a contract with a cellular provider.

Before using the 3G features, check with your service provider to see if any additional charges will be incurred, especially roaming charges.