Laptop wireless modems allow laptops to send and receive data other computers over wireless or cable networks. They connect to the laptop externally or through the PCMCIA expansion slot, and may be built for 56k or broadband connections. Smaller models are built into cellular phones and serve as USB or Bluetooth modems for the laptop.
Firewall: Choose a laptop wireless modem with a firewall to keep harmful files from entering your computer through the network. The computer’s firewall or anti-virus program should be enough to protect small homes, but public Wi-Fi connections require a dedicated firewall to filter incoming data.
Coverage: Make sure your laptop wireless modem can receive signals from a wide range. Choose a model that supports roaming connections if you travel frequently. If your area has poor network coverage, consider getting a power booster or your modem.
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