Wireless-N Business Notebook Adapter

DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be "seen" from the Internet.

DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP addresses.

Domain - A specific name for a network of computers.

DOS (Denial of Service) - A network security term which defines a type of attack designed to prevent legitimate users from using wireless service by flooding with useless/malicious traffic.

Download - To receive a file transmitted over a network.

DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines. Dynamic IP Address - A temporary IP address assigned by a DHCP server.

EAP (Extensible Authentication Protocol) - A general authentication protocol used to control network access. Many specific authentication methods work within this framework.

Encryption - Encoding data transmitted in a network.

Ethernet - IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium.

Firewall - A set of related programs located at a network gateway server that protects the resources of a network from users from other networks.

Firmware - The programming code that runs a networking device.

FTP (File Transfer Protocol) - A protocol used to transfer files over a TCP/IP network.

Full Duplex - The ability of a networking device to receive and transmit data simultaneously.

Gateway - A device that interconnects networks with different, incompatible communications protocols.

Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time.

HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World Wide Web.

Infrastructure - A wireless network that is bridged to a wired network via an access point.

Appendix F: Glossary

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Linksys WPC4400N manual Wireless-N Business Notebook Adapter
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WPC4400N specifications

The Linksys WPC4400N is a wireless networking card that epitomizes the fusion of advanced technology and user-friendly design, intended primarily for laptops and desktop computers. This product stands out for its compatibility with the IEEE 802.11n standard, which promises improved wireless coverage and higher data transfer speeds compared to its predecessors.

One of the most significant features of the WPC4400N is its dual-band capability. Operating on both the 2.4GHz and 5GHz frequency bands, it allows users to choose the optimal frequency for their needs. The 2.4GHz band offers extended range, making it ideal for general browsing and streaming, whereas the 5GHz band provides increased speed, making it perfect for high-bandwidth activities such as gaming and video conferencing.

Incorporating MIMO (Multiple Input Multiple Output) technology, the WPC4400N enhances wireless performance by using multiple antennas to transmit and receive data simultaneously. This results in a more stable connection and a significant boost in throughput. MIMO technology ensures that users experience fewer drops in connectivity and improved speeds, even when multiple devices are connected to the network.

Additionally, the WPC4400N supports backward compatibility with the 802.11b and 802.11g standards. This feature ensures that users can connect to older routers and devices seamlessly, providing flexibility and convenience in mixed-device environments. The card is equipped with a simple installation process, making it easy for users to set up their network connection without requiring extensive technical knowledge.

The WPC4400N also prioritizes security, featuring advanced encryption protocols such as WPA2, which safeguards user data from potential threats. The device’s robust security features help protect sensitive information when used in public networks, making it a reliable choice for both home and business users.

In summary, the Linksys WPC4400N is a versatile wireless networking card that combines dual-band connectivity, MIMO technology, backward compatibility, and strong security measures. These characteristics make it an excellent choice for users who demand high-performance wireless connections in a variety of settings. Whether for streaming, gaming, or day-to-day internet use, the WPC4400N is designed to deliver a seamless and efficient networking experience.
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