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ODW 6.6
Our Digital World 6.6
| Term | Definition |
|---|---|
| node | A device connected to a network. |
| dial-up modem | A piece of hardware that works with telephone transmissions and changes or manipulates an analog signal so that it can be understood by a computer or fax machine (which only understand digital signals). |
| DSL modem | Hardware that allows you to connect to your existing telephone system but separates voice from data traffic so you don’t lose the use of your telephone while your computer is transmitting or receiving data. DSL stands for digital subscriber line. |
| cable modem | A piece of hardware that enables you to send and receive digital data using a high-speed cable network based on the cable television infrastructure found in many homes. |
| wireless modem | A piece of hardware that typically takes the form of a PC card that you slot into a device to provide it with an antenna that can pick up a connection to the Internet. |
| mobile broadband stick | A USB device that acts as a modem to give your computer access to the Internet and which can easily be moved between computers. |
| network adapter | A device that provides the ability for a computer to connect to a network. |
| network interface card (NIC) | A kind of network adapter card, which takes the form of a circuit board built into the motherboard of a computer. Enables a client computer on a LAN to connect to a network by managing the transmission of data and instructions received from the server. |
| wireless interface card | A network interface card that uses wireless technology. |
| wireless access point | A hardware device that contains a high-quality antenna that allows computers and mobile devices to transmit data to each other or to and from a wired network infrastructure. |
| router | A hardware device that connects two or more networks in a business setting. At home, a router allows you to connect multiple devices to one high-speed connection. |
| wireless router | A hardware device that allows you to connect multiple networks (or devices in a home network) using wireless communication signals. |
| repeater | An electronic device that takes a signal and retransmits it at a higher power level to boost the transmission strength. A repeater can also transmit a signal to move past an obstruction, so that the signal can be sent further without degradation. |
| hub | Used on older LAN networks to coordinate the message traffic among nodes connected to a network. |
| switch | A hardware device that joins several computers together to coordinate message traffic in one LAN network. Unlike a hub, a switch checks the data in a packet it receives and sends the packet to the correct destination using the fastest route. |
| gateway | A device that helps separate, dissimilar networks to communicate with each other. |
| bridge | A device that helps separate, similar networks to communicate with each other. |
| network operating system (NOS) | Programs that control the flow of data among clients, restrict access to resources, and manage individual user accounts. |
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softcrylic
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