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Encyclopedia > Wireless card

A wireless network interface card (WNIC) is a network card which connects to a radio-based computer network, unlike a regular network card (NIC) which connects to a wire-based network such as token ring or ethernet. A WNIC, just like an NIC, works on the Layer 1 and Layer 2 of the OSI Model. A transitional network card with both BNC Thinnet (left) and Twisted pair (right) connectors. ... A computer network is a system for communication between computers. ... Token-Ring local area network (LAN) technology was developed and promoted by IBM in the early 1980s and standardised as IEEE 802. ... Ethernet is a frame-based computer networking technology for local area networks (LANs). ... The Open System Interconnection Reference Model (OSI Model or OSI Reference Model for short) is a layered abstract description for communications and computer network protocol design, of the Open Systems Interconnection initiative. ...


A WNIC is an essential component for wireless desktop computer. This card uses an antenna to communicate through microwaves. A WNIC in a desktop computer is mostly located in the PCI slot. Other options are USB WNIC, PCMCIA WNIC and integrated WNIC. Desktop computer with several common peripherals (Monitor, keyboard, mouse, speakers, microphone and a printer) A desktop computer is an independent personal computer that is made especially for use on a desk in an office or home. ... A Yagi-Uda antenna An antenna or aerial is an electronic component designed to transmit or receive radio waves. ... Microwave Slang for small waves, like at a beach, often used by surfers. ... 32-bit PCI expansion slots on a motherboard 64-bit PCI expansion slots inside a Power Macintosh G4 The Peripheral Component Interconnect standard (in practice almost always shortened to PCI) specifies a computer bus for attaching peripheral devices to a computer motherboard. ... Note: USB may also mean upper sideband in radio. ... The PCMCIA is the Personal Computer Memory Card International Association, an industry trade association that creates standards for notebook computer peripheral devices. ...


A WNIC can operate in two modes known as infrastructure mode and ad hoc mode. It has been suggested that this article or section be merged with Mesh networking. ...


In an infrastructure mode network the WNIC needs an access point: all data is transferred using the access point as the central hub. All wireless nodes in an infrastructure mode network connect to an access point. All nodes connecting to the access point must have the same service set identifier (SSID) as the access point, and if the access point is enabled with WEP they must have the same WEP key or other authentication parameters. A wireless access point (WAP or AP) is a device that connects wireless communication devices together to create a wireless network. ... Node may mean: Node (botany), the place on a plant stem where a leaf is attached Node (physics), a spatial locus along a standing wave where the wave has minimal amplitude Node (networking), a device connected to a network, such as a computer or router Node (computer science), a basic... In Wi-Fi Wireless LAN computer networking, a service set identifier (SSID) is a code attached to all packets on a wireless network to identify each packet as part of that network. ... Wired Equivalent Privacy (WEP) is part of the IEEE 802. ... Authentication is the act of establishing or confirming something or someone as authentic. ...


In an ad-hoc mode network the WNIC doesn't require an access point, but rather can directly interface with all other wireless nodes directly. All the peer nodes in an ad-hoc network must have the same channel and SSID. Channel, in communications (sometimes called communications channel), refers to the medium through which information is transmitted from a sender (or transmitter) to a receiver. ...


 
 

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