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You can use these buttons to quickly switch between the programs or windows. To make a program or window the currently active one, click the associated taskbar button. System tray The System tray displays icons of tasks or programs that run continuously in the background. To learn more about each task, position the cursor over the icon for a few moments and a short description of the task appears. Typical tasks in the System tray are Current time, Power usage mode, Mouse properties, and speaker volume. To activate a specific task, double-click the appropriate System tray icon. Setting up for communications To connect to the Internet, use an online service, or communicate across the telephone lines with another computer, you need: . A modem (one comes with your computer) . A telephone line . A browser or communications program . An Internet Service Provider (ISP) or online service if you plan to use the Internet Exploring Your Computer’s Features 125 Setting up for communications Determining the COM port Your modem is connected to one of the computer’s COM (communications) ports. The default setting for the modem is COM3. The following procedure is intended to support you if you need to either upgrade your modem or reset the port to the default settings. If you are having trouble connecting through the modem, you may need to determine the current COM port name and possibly change it. To find out which port your modem is connected to: 1 Click Start, Control Panel, Printers and Other Hardware, and then Phone and Modem Options. The Phone and Modem Options Properties dialog box displays. 2 Fill in the Local Information text boxes and click OK. 3 Click the Modems tab. Your modem should be listed next to one of the computer’s COM ports. 4 Make a note of the COM port number. 5 To verify that the modem is set up properly, select the modem you wish to check, and then click Properties to bring up the dialog box with information specific to that modem. Windows XP communicates with the modem and displays identifying information reported by the modem. If Windows XP cannot communicate with the modem, it displays an error message. Consult the troubleshooting sections of your modem and operating system documentation. Exploring Your Computer’s Features 126 Setting up for communications 6 Click OK to close the properties dialog box for that specific modem. 7 Click OK to close the Modem Properties dialog box. 8 Close the Control Panel. Connecting the modem to a telephone line Before you can communicate using the modem, you need to connect it to a telephone line. Your computer’s built-in modem port provides an RJ-11 jack, allowing you to connect the modem to a standard voice-grade telephone line. 1 Plug one end of a telephone cable (purchased separately) into the modem port on the back of the computer. (Sample Illustration) Connecting the telephone cable to the modem port 2 Connect the other end to the RJ...

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