Packard Bell All-in-one Computer User Manual

Contents

Packard Bell All-in-one Computer User Manual Manual pdf 48 page image

48 - Internet and online securityInternet 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')Network connectionsA LAN (Local Area Network) is a group of computers (for example,within an office building or home) that share a commoncommunications line and resources. When you set up a network, youcan share files, peripheral devices (such as a printer) and an Internetconnection. You can set up a LAN using wired technologies (such asEthernet) or wireless technologies (such as Wi-Fi or Bluetooth).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.