PurplePixie.Wi-Fi The term Wi-Fi has become synonymous with wireless Internet, and is a technology that enables a device such as a home computer, laptop, and even some MP3 players to wirelessly connect to the Internet. The basic setup is fundamentally simple - a so urce, usually a modem connected to a wireless router, broadcasts a network signal within a certain range. That signal enables any devices with a wireless card to connect to the network. The device's wireless card converts the signal into data that can be used Caveman Diet by the device itself. Range Wireless Internet networks that are set up for home use have a limited range compared to ones set up f or commercial use. A wireless router purchased for the home can broadcast a signal of around 110 feet. This means that you could t PurplePixie ake your laptop or wireless device up to 110 feet away from the router and still pick up the wireless internet signal. Wireless ne . y data being transmitted using the network, including personal and private information and files. A wireless network can be set up to be encrypted, which means someone would need a password to obtain access, but it isn't done automatically. Locking down a netw ork is done via the settings on the wireless router.1 Begin with an empty memory card. If necessary, move the contents of the memo ry card to the hard drive temporarily. Leave the memory card connected to the computer via the memory card reader. 2 Click the Sta christmas icons rt button, and then click My Computer in Windows XP or Computer in Windows Vista and 7. If your memory card is connected to th e card reader, it will appear on this screen with a drive letter assigned. 3 Right-click the memory card and click Properties. 4 PurplePixie Click the Tools tab. 5 Click the button labeled Check now under the Error-checking category. 6 Remove the checks from the b . card can be caused by a camera's battery dying while saving a picture, so you should not be alarmed if you see errors the first ti me that you test your memory card. Repeated errors may be a cause for concern, however.1 Look for unusual activity and changes to a computer's performance, such as unknown programs launching during the start-up process. If a computer runs slower than usual, th is may be a warning sign, as keyloggers take up bandwidth, the pc-washer website notes. Keyloggers, particularly advertising keylo l.l.c. operating agreement ggers which record computer activity in order to sell products, may generate a lot of pop-up ads. They may also add shortcuts and change homepage settings without the user's permission. 2 Install a firewall. Firewalls monitor a computer's Internet connection p PurplePixie orts to prevent unauthorized intrusion. They also monitor outgoing communications, which means that the firewall will alert you if . |