Browse Definitions:

Networking

Definitions about networking including routing and switching vocabulary, telecom terminology and words about email, messaging and mobile.

Circuit switched services equipment and providers

Terms related to circuit switched services equipment and providers, including dedicated communications channel definitions and words and phrases about telecommunications.

  • trunk

    A trunk is a physical path or link in a communications system that interconnects major switching centers or nodes and is designed to handle many transmissions simultaneously.

  • service-level agreement (SLA)

    A service-level agreement (SLA) is a contract that specifies what the service provider is responsible for.

  • signal-to-noise ratio (S/N or SNR)

    In analog and digital communications, signal-to-noise ratio is a measure of signal strength relative to background noise. This ratio is usually measured in decibels.

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Data transmission

Terms related to data transmission, including definitions about communication channels and words and phrases about point-to-point and point-to-multipoint data transfers.

  • von Neumann bottleneck

    The von Neumann bottleneck is a limitation on throughput caused by the standard personal computer architecture.

  • trunk

    A trunk is a physical path or link in a communications system that interconnects major switching centers or nodes and is designed to handle many transmissions simultaneously.

  • orthogonal frequency-division multiplexing (OFDM)

    Orthogonal frequency-division multiplexing (OFDM) is a digital modulation method that splits a signal into several narrowband channels carried on different frequencies to reduce interference.

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Email and messaging

Terms related to email and messaging, including definitions about instant messenger and words and phrases about email servers, storage, spam and mobile access.

  • email spam

    Email spam, or junk email, is unsolicited bulk messages sent through email with commercial, fraudulent or malicious intent.

  • HipChat

    Atlassian HipChat allows employees to collaborate, work as teams and manage goals, all in real time, whether they work in the same office building or are located around the world.

  • email security gateway

    An email security gateway is a product or service that is designed to prevent the transmission of emails that break company policy, send malware or transfer information with malicious intent.

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High-speed networks

Terms related to high-speed communication networks, including network and end-system architecture definitions and words and phrases about high-bandwidth and low-latency communication.

  • bandwidth

    Definition: Learn what bandwidth is and how the term is used as a synonym for signal frequency range, data transfer rate and capacity.

  • MiFi

    MiFi is a portable broadband device that allows multiple end users and mobile devices to share a 3G or 4G mobile broadband Internet connection and create an ad-hoc network.

  • ternary content-addressable memory (TCAM)

    Ternary content-addressable memory (TCAM) is a specialized type of high-speed memory that searches its entire contents in a single clock cycle, with the term “ternary” referring to its ability to store and query data using three different inputs: 0, 1 and X.

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Internet of Things

The Internet of Things (IoT) is a scenario in which objects, animals or people are provided with unique identifiers and the ability to transfer data over a network without requiring human interaction.

  • sensor fusion

    Sensor fusion is the combined use of multiple types of sensor data for a more complete picture of the sensor’s subject or environment.

  • predictive maintenance (PdM)

    Predictive maintenance (PdM) is the servicing of equipment when it is estimated that service is required, within a certain tolerance. PdM is used in railroads, industrial equipment, manufacturing plants and oil and gas processing.

  • MEMS (micro-electromechanical systems)

    A MEMS (microelectromechanical system) is a miniature machine that has both mechanical and electronic components.

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LANs

Terms related to local area networks (LANs), including definitions about Ethernet and words and phrases about devices that share a common communications line or link.

  • network automation

    Network automation is the use of IT controls to supervise and carry out every-day network management functions.

  • 40 Gigabit Ethernet (40GbE)

    40 Gigabit Ethernet (40GbE) is a standard that enables the transfer of Ethernet frames at speeds of up to 40 gigabits per second (Gbps). 40 GbE runs on Quad Small Form Factor Pluggable (QSFFP) cabling, a high-density fiber connector with 12 strands of fiber.

  • network drive

    A network drive is a storage device on a local access network (LAN) within a business or home. Within a business, the network drive is usually located on a server. In a home, the network drive may be located on a dedicated server, one of the networked computers or an external hard drive.

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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.

  • Elastic Load Balancing (ELB)

    Elastic Load Balancing (ELB) is a load-balancing service for Amazon Web Services (AWS) deployments.

  • Wi-Fi (802.11x standard)

    Wi-Fi is the popular term for high-frequency wireless local area network (WLAN) technology and a standard that has gained acceptance in many companies as an alternative to a wired LAN.

  • systems engineering (SE)

    Systems engineering (SE) is an interdisciplinary area of technology that encompasses software and hardware systems design and development with consideration to their interconnections and the environment in which they operate.

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Network software

Terms related to network software, including definitions about network monitoring and words and phrases about network administration.

  • systems engineering (SE)

    Systems engineering (SE) is an interdisciplinary area of technology that encompasses software and hardware systems design and development with consideration to their interconnections and the environment in which they operate.

  • mirror site

    A mirrored site is a website or set of files on a server that has been copied to another server so that the site or files are available from more than one place.

  • IT systems management

    Systems management is the administration of the information technology systems in an enterprise data center. An effective systems management plan facilitates the delivery of IT as a service (ITaaS) and allows the organization's employees to respond to changing business requirements in an agile manner.

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Networking and communications

Terms related to networking and communications, including definitions about network protocols and words and phrases about data transmission.

  • acoustical mesh network

    An acoustical mesh network is a decentralized communication system that transmits data by using sound to connect computers. There are both legitimate and unscrupulous uses for acoustical mesh networks.

  • fog computing (fog networking, fogging)

    Fog computing, also known as fog networking or fogging, brings the benefits of the cloud closer to where data is created: at the network's edge.

  • omnidirectional antenna

    An omnidirectional antenna is a wireless transmitting or receiving antenna that radiates or intercepts radio-frequency (RF) electromagnetic fields equally well in all horizontal directions in a flat, two-dimensional (2D) geometric plane.

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Routing and switching

Terms related to routers and switches, including definitions about hubs and words and phrases about packet-switched networks.

  • adaptive routing (dynamic routing)

    Adaptive routing, also called dynamic routing, is a process for determining the optimal path a data packet should follow through a network to arrive at a specific destination. Adaptive routing can be compared to a commuter taking a different route to work after learning that traffic on his usual route is backed up.

  • recursive DNS server

    A recursive DNS server is a domain name system server that takes website name or URL (uniform resource locator) requests from users and checks the records attained from authoritative DNS servers for the associated IP address.

  • recursive DNS query

    A recursive DNS query is a request from a client for a website that must be responded to with either the sought response or an error message stating that the site does not exist.

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Smart grid

Terms related to smart grids, including definitions about utility electricity delivery systems and words and phrases about smart meters and distributing, monitoring and billing electrical power.

  • Internet of Things (IoT)

    The Internet of Things (IoT) is an environment in which objects, animals or people are assigned unique identifiers and given the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction.

  • WRAN (wireless regional area network)

    A wireless regional area network (WRAN) is techology based on IEEE 802.22 to take advantage of underused white space spectrum and bring high-speed wireless connectivity to rural areas.

  • event-condition-action rule (ECA rule)

    An event condition action rule (ECA rule) is the underlying model for event-driven programming, in which actions are triggered by events, given the existence of specific conditions.

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Telecom

Terms related to telecom, including definitions about telecommunication service providers and words and phrases about voice, video and Internet communication.

  • cloud services

    Cloud services is an umbrella term that may refer to a variety of resources provided over the internet, or to professional services that support the deployment of such cloud-based resources.

  • landline

    A landline is a telephone that transmits signals converted from audio data through physical media, such as wire or fibre optic cable, rather than through wireless transmission as is the case with mobile phones.

  • personal digital assistant

    Personal digital assistants were the precursors to smartphones. Most PDAs had a small physical keyboard, and many types of applications were written for these devices.

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VoIP

Terms related to voice over IP (VoIP), including definitions about communication protocols and words and phrases about making phone calls over the Internet.

  • data deduplication

    Deduplication retains one unique data instance to reduce storage and bandwidth consumed by remote backups, replication and disaster recovery.

  • VoIP (voice over IP)

    VoIP enables voice and multimedia communications, such as phone calls, over the internet and other IP-based networks, and allows enterprises to operate a single voice and data network.

  • port 9875 (port of doom)

    Port 9875 is a port often associated with setting up VoIP communications.The port is also notorious as an attack vector for the Portal of Doom Trojan; as a result, it is sometimes referred to as the Port of Doom.

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Wireless LANs

Terms related to wireless LANs, including definitions about Wi-Fi and words and phrases about wireless access points, wireless controllers, wireless LAN security and WLAN configuration.

  • radio frequency (RF, rf)

    Radio frequency is a measurement representing the oscillation rate of electromagnetic radiation spectrum, or electromagnetic radio waves, from frequencies ranging from 300 GHz to as low as 9 kHz.

  • line of sight (LOS)

    The level of obstruction in a line of sight determines not only the visibility from one point to another but also the quality of signal reception for wireless transmissions, such as Wi-Fi.

  • Wi-Fi (802.11x standard)

    Wi-Fi is the popular term for high-frequency wireless local area network (WLAN) technology and a standard that has gained acceptance in many companies as an alternative to a wired LAN.

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Wireless technologies

Terms related to wireless technologies, including definitions about wireless devices and words and phrases about radio, microwave and infrared communication.

  • Qi (Wireless Power Consortium)

    Qi (pronounced CHEE) is a manufacturer-agnostic standard for wirelessly charging battery-powered devices. Qi, which means life energy in Chinese, was developed and is maintained by the Wireless Power Consortium.

  • Wi-Fi (802.11x standard)

    Wi-Fi is the popular term for high-frequency wireless local area network (WLAN) technology and a standard that has gained acceptance in many companies as an alternative to a wired LAN.

  • Bluetooth

    Bluetooth technology allows computers, mobile devices and accessories to easily interconnect with each other. A Bluetooth connection is wireless and works over a short range.

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SearchCompliance

  • PCAOB (Public Company Accounting Oversight Board)

    The Public Company Accounting Oversight Board (PCAOB) is a Congressionally-established nonprofit that assesses audits of public ...

  • cyborg anthropologist

    A cyborg anthropologist is an individual who studies the interaction between humans and technology, observing how technology can ...

  • RegTech

    RegTech, or regulatory technology, is a term used to describe technology that is used to help streamline the process of ...

SearchSecurity

  • email spam

    Email spam, or junk email, is unsolicited bulk messages sent through email with commercial, fraudulent or malicious intent.

  • distributed denial of service (DDoS) attack

    A distributed denial-of-service attack occurs when an attack originates from multiple computers or devices, usually from multiple...

  • application whitelisting

    Application whitelisting is the practice of identifying applications that have been deemed safe for execution and restricting all...

SearchHealthIT

  • athenahealth Inc.

    Based in Watertown, Mass., athenahealth Inc. is a leading vendor of cloud-based EHRs for small to medium-sized physician ...

  • Affordable Care Act (ACA or Obamacare)

    The Affordable Care Act (ACA) is legislation passed in 2010 that changed how uninsured Americans enroll in and receive healthcare...

  • HIPAA Privacy Rule

    The Standards for Privacy of Individually Identifiable Health Information, commonly known as the HIPAA Privacy Rule, establishes ...

SearchDisasterRecovery

  • disaster recovery as a service (DRaaS)

    One approach to a strong disaster recovery plan is DRaaS, where companies offload data replication and restoration ...

  • data recovery

    Data recovery restores data that has been lost, accidentally deleted, corrupted or made inaccessible. Learn how data recovery ...

  • disaster recovery plan (DRP)

    A company's disaster recovery policy is enhanced with a documented DR plan that formulates strategies, and outlines preparation ...

SearchStorage

  • yottabyte (YB)

    A yottabyte is a measure of theoretical storage capacity and is 2 to the 80th power bytes, or, in decimal, approximately 1,000 ...

  • Kilo, mega, giga, tera, peta, exa, zetta and all that

    Kilo, mega, giga, tera, peta, exa, zetta are among the list of prefixes used to denote the quantity of something, such as a byte ...

  • brontobyte

    A brontobyte is a measure of memory or data storage that is equal to 10 to the 27th power of bytes.

SearchSolidStateStorage

  • 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.

  • SSD caching

    SSD caching, also known as flash caching, is the temporary storage of data on NAND flash memory chips in a solid-state drive so ...

  • NVDIMM (Non-Volatile Dual In-line Memory Module)

    An NVDIMM (non-volatile dual in-line memory module) is hybrid computer memory that retains data during a service outage.

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

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