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.
Types Of Laptop Wireless Modems
Kinds of Laptop Wireless Modems include the following:
GSM modems
GSM modems use radio waves to transmit and receive signals from a carrier.
They usually have low connection speeds comparable to 56k dialup modems.
GPRS modems
GPRS modems work the same way as GSM modems, but offer much faster transmission.
They can transmit and display multimedia messages, such as images and HTML files.
Broadband modems
Broadband modems automatically detect and connect to Wi-Fi or wireless LAN connections.
They transmit over 10 times faster than GPRS modems and can be used on a dedicated basis.
Choosing Laptop Wireless Modems (Buying Tips)
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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