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Network hardware

Terms related to network hardware, including definitions about cables or file servers and words and phrases about routers and switches.

100 - INT

  • 1000BASE-T - 1000BASE-T is Gigabit Ethernet (1 gigabit is 1000 megabits per second) on copper cables, using four pairs of Category 5 unshielded twisted pair to achieve the gigabit data rate.
  • 802.16 - 802.16 is a group of broadband wireless communications standards for metropolitan area networks (MANs) developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE).
  • analog telephone adapter (ATA) - An analog telephone adaptor (ATA) is a device used to connect a standard telephone to a computer or network so that the user can make calls over the Internet.
  • application delivery controller (ADC) - An application delivery controller (ADC) is a network component that manages and optimizes how client machines connect to web and enterprise application servers.
  • ARCNET - ARCNET is a widely-installed local area network (LAN) technology that uses a token-bus scheme for managing line sharing among the workstations and other devices connected on the LAN.
  • ARM server - An advanced RISC machine (ARM) server is an enterprise-class computer server that employs a large array of ARM processors rather than a complement of x86-class processors.
  • AS/400 (IBM iSeries, AS/400e, eServer iSeries/400) - The AS/400 - formally renamed the 'eServer iSeries/400,' but still commonly known as AS/400 - is a middle-size server designed for small businesses and departments in large enterprises and now redesigned so that it will work well in distributed networks.
  • Asynchronous - In general, asynchronous -- pronounced ay-SIHN-kro-nuhs, from Greek asyn-, meaning "not with," and chronos, meaning "time" -- is an adjective describing objects or events that are not coordinated in time.
  • backbone - A backbone is a larger transmission line that carries data gathered from smaller lines that interconnect with it.
  • beaming - In infrared transmission, beaming is the communication of data between wireless devices using a beam of infrared light.
  • BIOS rootkit - A BIOS-level rootkit is programming that exists in a system's memory hardware to enable remote administration.
  • blade PC (or PC blade) - A blade PC, also called a PC blade, is a computer that is entirely contained in a thin, modular circuit card placed in a centralized, secure location such as a server rack.
  • BNC (Bayonet Neil-Concelman or British Naval Connector) - A BNC (Bayonet Neil-Concelman, or sometimes British Naval Connector) connector is used to connect a computer to a coaxial cable in a 10BASE-2 Ethernet network.
  • branch office box (BOB) - A Branch Office Box (BOB) is a server appliance that has been optimized to provide distributed support for simple utility functions that are required locally but are difficult to provide over a WAN.
  • bridge - A bridge is a class of network device that’s designed to connect networks at OSI Level 2, which is the data link layer of a local-area network (LAN).
  • broadband voice gateway - A broadband voice gateway is a device that allows you to make telephone calls over a high-speed Internet connection rather than through a regular telephone outlet without having to go through your computer.
  • brouter - A brouter (pronounced BRAU-tuhr or sometimes BEE-rau-tuhr) is a network bridge and a router combined in a single product.
  • buckypaper - Buckypaper is a strong and lightweight substance manufactured from compressed carbon nanotubes, which are long, cylindrical carbon structures consisting of hexagonal graphite molecules attached at the edges.
  • burn-in - Burn-in is a test in which a system or component is made to run for an extended period of time to detect problems.
  • bus network - A bus network is a local area network (LAN) topology in which each node -- a workstation or other device -- is connected to a main cable or link called a bus.
  • cable head-end - A cable head-end (or headend) is the facility at a local cable TV office that originates and communicates cable TV services and cable modem services to subscribers.
  • cache server - A cache server is a dedicated network server or service acting as a server that saves Web pages or other Internet content locally.
  • catastrophic failure - Catastrophic failure is a complete, sudden, often unexpected breakdown in a machine, electronic system, computer or network.
  • Categories of twisted pair cabling systems - ANSI/EIA (American National Standards Institute/Electronic Industries Association) Standard 568 is one of several standards that specify "categories" (the singular is commonly referred to as "CAT") of twisted pair cabling systems, such as wires, junctions, and connectors.
  • Centrino - Centrino is a technology package from Intel that provides built-in wireless support for laptop computers while making it possible to run a laptop all day (up to seven hours) without a battery recharge.
  • certification - In information technology as in other fields such as teaching, accounting, and acupuncture, certification is a formal process of making certain that an individual is qualified in terms of particular knowledge or skills.
  • Cisco Borderless Networks - Cisco Borderless Networks is the brand name for a set of hardware and software technologies which allow "anyone, anywhere, anytime, and on any device" to connect to an organization's network.
  • Cisco Catalyst Blade Switch 3020 - The Cisco Catalyst Blade Switch 3020 is a switch designed for the Hewlett-Packard (HP) BladeSystem c-Class of blade servers.
  • Cisco Systems, Inc. - Cisco Systems, Inc.
  • coarse wavelength division multiplexing (CWDM) - Coarse wavelength division multiplexing (CWDM) is a method of combining multiple signals on laser beams at various wavelengths for transmission along fiber optic cables, such that the number of channels is fewer than in dense wavelength division multiplexing (DWDM) but more than in standard wavelength division multiplexing (WDM).
  • coaxial antenna - A coaxial antenna is a variant of the dipole antenna, designed for use with an unbalanced feed line.
  • coaxial cable - Coaxial cable is a type of copper cable specially built with a metal shield and other components engineered to block signal interference.
  • committed information rate (CIR) - Committed information rate (CIR) is the guaranteed rate at which a Frame Relay network will transfer information under normal line conditions.
  • commodity - A commodity is a type of widely-available product that is not markedly dissimilar from one unit to another.
  • commodity hardware - Commodity hardware, in an IT context, is a device or device component that is relatively inexpensive, widely available and more or less interchangeable with other hardware of its type.
  • Complementary Code Keying (CCK) - Complementary Code Keying (CCK) is a modulation scheme used with wireless networks (WLANs) that employ the IEEE 802.
  • configuration drift - Configuration drift occurs naturally in data center environments when changes to software and hardware are not recorded or tracked in a comprehensive and systematic fashion.
  • connection - In telecommunication and computing in general, a connection is the successful completion of necessary arrangements so that two or more parties (for example, people or programs) can communicate at a long distance.
  • connection broker - In desktop virtualization, a connection broker is a software program that allows the end-user to connect to an available desktop.
  • connection-oriented - In telecommunications, connection-oriented describes a means of transmitting data in which the devices at the end points use a preliminary protocol to establish an end-to-end connection before any data is sent.
  • control network - A control network is a network of nodes that collectively monitor, sense, and control or enable control of an environment for a particular purpose.
  • converged network adapter (CNA) - A converged network adapter (CNA) is a single network interface card (NIC) that contains both a Fibre Channel (FC) host bus adapter (HBA) and a TCP/IP Ethernet NIC.
  • core router - A core router is a router that forwards packets to computer hosts within a network (but not between networks).
  • CPE device - A CPE device is telecommunications hardware located at the home or business of a customer.
  • cross-bar switch - In a network, a cross-bar switch is a device that is capable of channeling data between any two devices that are attached to it up to its maximum number of ports.
  • crosstalk - Crosstalk is a disturbance caused by the electric or magnetic fields of one telecommunication signal affecting a signal in an adjacent circuit.
  • CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is a protocol for carrier transmission in 802.
  • CSU/DSU (Channel Service Unit/Data Service Unit) - A CSU/DSU (Channel Service Unit/Data Service Unit) is a hardware device about the size of an external modem that converts a digital data frame from the communications technology used on a local area network (LAN) into a frame appropriate to a wide-area network (WAN) and vice versa.
  • customer premises equipment (CPE) - Customer premises equipment (CPE) is telecommunications and information technology equipment kept at the customer's physical location rather than on the service provider's premises.
  • Data Access Arrangement (DAA) - A Data Access Arrangement (DAA) is an electronic interface within a computer and its modem to a public telephone line.
  • data availability - Data availability is a term used by some computer storage manufacturers and storage service providers (SSPs) to describe products and services that ensure that data continues to be available at a required level of performance in situations ranging from normal through "disastrous.
  • data center services - Data center services is a collective term for all the supporting components necessary to the proper operation of data center.
  • data streaming - Data streaming is the continuous transfer of data at a steady, high-speed rate.
  • dense wavelength division multiplexing (DWDM) - Dense wavelength division multiplexing (DWDM) is a technology that puts together -- multiplexes -- data signals from different sources so they can share a single optical fiber pair while maintaining complete separation of the data streams.
  • digital audio broadcasting (DAB) - .
  • DoCoMo (NTT DoCoMo) - DoCoMo, also known as NTT DoCoMo, is a Japanese communications corporation that has introduced a line of cell phone sets that contain the equivalent of a digital smart card.
  • domain controller - Primary domain controller (PDC) and backup domain controller (BDC) are roles that can be assigned to a server in a network of computers that use the Windows NT operating system.
  • drive-by pharming - Drive-by pharming is a vulnerability exploitation method in which the attacker takes advantage of an inadequately unprotected broadband router to gain access to user data.
  • DSC pull server - A DSC pull server (desired state configuration pull server) is an automation server that allows configurations to be maintained on many servers, computer workstations and devices across a network.
  • Dynamic Source Routing (DSR) - Dynamic Source Routing (DSR) is a self-maintaining routing protocol for wireless networks.
  • ECOphlex (PHase-change Liquid EXchange) - ECOphlex (PHase-change Liquid EXchange) is an efficient and environmentally-friendly computer component cooling technology.
  • edge device - An edge device is any piece of hardware that controls data flow at the boundary between two networks.
  • edge node - An edge node is a computer that acts as an end user portal for communication with other nodes in cluster computing.
  • edge router - An edge router is a specialized router located at a network boundary that enables an internal network to connect to external networks.
  • egress - Egress (pronounced EE-grehs, from Latin egressus, or going out) is the act of going out of something.
  • Elastic Load Balancing (ELB) - Elastic Load Balancing (ELB) is a load-balancing service for Amazon Web Services (AWS) deployments.
  • endpoint device - An endpoint device is an Internet-capable computer hardware device on a TCP/IP network.
  • Energy Star - Energy Star is a government-backed labeling program that helps people and organizations save money and reduce greenhouse gas emissions by identifying factories, office equipment, home appliances and electronics that have superior energy efficiency.
  • enterprise DNS - Enterprise DNS is an enterprise-class implementation of the domain name system (DNS) that resolves external and internal queries for large organizations in a centrally managed, scalable, automatable and secure way.
  • erbium amplifier - An erbium amplifier, also called optical amplifier or an erbium-doped fiber amplifier or EDFA, is an optical or IR repeater that amplifies a modulated laser beam directly, without opto-electronic and electro-optical conversion.
  • Ethernet/IP (Ethernet Industrial Protocol) - Ethernet/IP (Ethernet Industrial Protocol) is a network communication standard capable of handling large amounts of data at speeds of 10 Mbps or 100 Mbps, and at up to 1500 bytes per packet.
  • female connector - A female connector is a connector attached to a wire, cable, or piece of hardware, having one or more recessed holes with electrical terminals inside, and constructed in such a way that a plug with exposed conductors (male connector) can be inserted snugly into it to ensure a reliable physical and electrical connection.
  • fiber jumper - A fiber jumper, sometimes called a fiber patch cord is a length of fiber cabling fitted with LC, SC, MTRJ or ST connectors at each end.
  • file server - In the client/server model, a file server is a computer responsible for the central storage and management of data files so that other computers on the same network can access the files.
  • forward error correction (FEC) - Forward error correction (FEC) is a method of obtaining error control in data transmission in which the source (transmitter) sends redundant data and the destination (receiver) recognizes only the portion of the data that contains no apparent errors.
  • full-disk encryption (FDE) - What is full-disk encryption (FDE)?Full-disk encryption (FDE) is encryption at the hardware level.
  • full-duplex - Full-duplex data transmission means that data can be transmitted in both directions on a signal carrier at the same time.
  • gatekeeper - A gatekeeper is a management tool for H.
  • geo-fencing (geofencing) - Geo-fencing is a feature in a software program that uses the global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries.
  • graceful degradation - Graceful degradation is the ability of a computer, machine, electronic system or network to maintain limited functionality even when a large portion of it has been destroyed or rendered inoperative.
  • green networking - Green networking is the practice of selecting energy-efficient networking technologies and products, and minimizing resource use whenever possible.
  • greenfield deployment - In networking, a greenfield deployment is the installation and configuration of a network where none existed before, for example in a new office.
  • GTAG (Global Tag) - GTAG (Global Tag) is a standardization initiative of the Uniform Code Council (UCC) and the European Article Numbering Association (EAN) for asset tracking and logistics based on radio frequency identification (RFID).
  • hard reset (factory reset; master reset) - A hard reset, also known as a factory reset or master reset, is the restoration of a device, such as a smartphone or tablet, to its state when it left the factory.
  • Hardware as a Service (in grid computing) - Hardware as a Service (Haas), in a grid computing context, is a pay-as-you-go model for accessing a provider's infrastructure and CPU power.
  • hardware load-balancing device (HLD) - A hardware load-balancing device (HLD), also known as a layer 4-7 router, is a physical unit that directs computers to individual servers in a network, based on factors such as server processor utilization, the number of connections to a server, or the overall server performance.
  • hardware-as-a-service (in managed services) - Hardware-as-a-service (HaaS) is a procurement model that is similar to leasing or licensing in which hardware that belongs to a managed service provider (MSP) is installed at a customer's site and a service level agreement (SLA) defines the responsibilities of both parties.
  • high availability (HA) - High availability (HA) is the ability of a system to operate continuously without failing for a designated period of time.
  • HomePNA - HomePNA is an industry standard for interconnecting computers within a home using existing telephone lines and registered jack.
  • hop - In a packet-switching network, a hop is the trip a data packet takes from one router or intermediate point to another in the network.
  • Huawei Technologies - Huawei is a Chinese information and communications technology (ICT) company that specializes in telecommunications equipment.
  • hybrid fiber coaxial network (HFC network) - A hybrid fiber coaxial (HFC) network is a telecommunication technology in which optical fiber cable and coaxial cable are used in different portions of a network to carry broadband content (such as video, data, and voice).
  • IEEE 802 wireless standards - The IEEE 802 standard is a collection of networking standards that cover the physical and data-link layer specifications for technologies such as Ethernet and wireless.
  • InfiniBand - InfiniBand is an architecture and specification for data flow between processors and I/O devices.
  • infrastructure (IT infrastructure) - Infrastructure is the foundation or framework that supports a system or organization.
  • inline network device - An inline network device is one that receives packets and forwards them to their intended destination.
  • interconnection - Interconnection is a strategy for ensuring that businesses can privately, securely and directly exchange digital information.
  • intermediate distribution frame (IDF) - An intermediate distribution frame (IDF) is a free-standing or wall-mounted rack for managing and interconnecting the telecommunications cable between end user devices and a main distribution frame (MDF).
  • intrusion prevention system (IPS) - An intrusion prevention system (IPS) is a network security and threat prevention tool.
SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • security token

    A security token is a physical or digital device that provides two-factor authentication for a user to prove their identity in a ...

  • hardware security module (HSM)

    A hardware security module (HSM) is a physical device that provides extra security for sensitive data.

  • buffer overflow

    A buffer overflow occurs when a program or process attempts to write more data to a fixed-length block of memory, or buffer, than...

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • What is RAID 6?

    RAID 6, also known as double-parity RAID, uses two parity stripes on each disk. It allows for two disk failures within the RAID ...

  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

  • VRAM (video RAM)

    VRAM (video RAM) refers to any type of random access memory (RAM) specifically used to store image data for a computer display.

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