purpose, the computer 140 exploits for example a modem (e.g., an ISDN modem) and a dial-up connection, or an XDSL modem and an XDSL connection to the access point 130 b, or a Wireless LAN (WLAN) connection to the access point 130 b (such as a WI-FI???WIreless-FIdelity???connection, a kind of Internet access that is becoming popular in areas such as hotels and airports).