Acer TravelMate P2 Series User Manual

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Contents

Acer TravelMate P2 Series User Manual Manual pdf 95 page image

Internet and online security - 95Internet as the connection speed is low and connection time istypically charged per hour.DSL (e.g. ADSL)DSL (Digital Subscriber Line) is an ‘always-on’ connection that runsover the phone line. As DSL and phone do not use the samefrequencies, you can use your telephone at the same time you areconnected to the Internet (this requires a ‘micro-filter’ on eachtelephone socket to avoid interference). To be eligible for DSL, youmust be located near an DSL-equipped phone exchange (service issometimes unavailable in rural areas). Connection speeds varydepending on your location, but DSL generally provides very fast andreliable Internet connection. As the connection is always-on, it isgenerally charged at fixed monthly rates.CableA cable connection provides fast and always-on Internet service via acable television line. This service is generally available in large cities.You can use your telephone and watch cable TV at the same time youare connected to the Internet.3G (WWAN or 'Wireless Wide-Area Network')A 3G connection allows you to use cellular networks (such as thoseused by a mobile phone) to connect to the Internet while away fromhome. The socket for a SIM card may be built in to your computer, ormay require an external device, such as a USB modem or even anappropriately equipped mobile phone.NoteA DSL connection requires an appropriate modem. A modem is usuallyprovided by the ISP when you register. Many of these modems include an‘router’ that provides network and Wi-Fi access.NoteIf your computer includes a SIM card slot, you require a compatible SIM cardand a contract with a cellular provider.Before using the 3G features, check with your service provider to see if anyadditional charges will be incurred, especially roaming charges.