Browse Definitions :

Hardware

Terms related to computer hardware, including definitions about cables, connectors and power supply units and words and phrases about computing peripheral devices including the keyboard, mouse, audio speakers, and printers.

JBO - NET

  • JBOD (just a bunch of disks) - JBOD ("just a bunch of disks") refers to a computer's hard disks that haven't been configured according to the RAID system.
  • jitter buffer - In voice over IP (VoIP), a jitter buffer is a shared data area where voice packets can be collected, stored, and sent to the voice processor in evenly spaced intervals.
  • joystick - In computers, a joystick is a cursor control device used in computer games and assistive technology.
  • just-in-case manufacturing (JIC manufacturing) - Just-in-case (JIC) manufacturing is the traditional model of production, in which products are created in advance and in excess of demand.
  • keylogger (keystroke logger or system monitor) - A keylogger, sometimes called a keystroke logger or system monitor, is a type of surveillance technology used to monitor and record each keystroke typed on a specific computer's keyboard.
  • keyphone (K/P or key station) - Commonly used by a company within its private automatic branch exchange (PABX) telephone system, a keyphone (abbreviated as K/P, sometimes called a key station) is a telephone with the extra buttons and the intelligence to allow incoming calls to be transferred to other extensions.
  • kill switch - A kill switch is a mechanism used to shut down or disable machinery.
  • kilobyte (KB or Kbyte) - A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science professionals, along with the general public, when referring to amounts of computer data using the metric system.
  • Kindle Fire - Kindle Fire is a low-priced tablet computer from Amazon.
  • L1 and L2 - L1 and L2 are levels of cache memory in a computer.
  • lambda switching (photonic switching, or wavelength switching) - Lambda switching (sometimes called photonic switching, or wavelength switching) is the technology used in optical networking to switch individual wavelengths of light onto separate paths for specific routing of information.
  • laser - A laser is a coherent and focused beam of photons; coherent, in this context, means that it is all one wavelength, unlike ordinary light which showers on us in many wavelengths.
  • LCD (Liquid Crystal Display) - LCD (Liquid Crystal Display) is a type of flat panel display which uses liquid crystals in its primary form of operation.
  • LEED (Leadership in Energy and Environmental Design) - LEED (Leadership in Energy and Environmental Design) is an ecology-oriented building certification program run under the auspices of the U.
  • Lenovo Converged HX series - HX hyper-converged infrastructure appliances are designed for virtual desktop infrastructure (VDI), server virtualization, private and hybrid clouds, enterprise applications and remote/branch office (ROBO) environments.
  • Lenovo IdeaPad Yoga - The Lenovo IdeaPad Yoga is a line of convertible tablet computers that run the Windows operating system.
  • level of support (support level) - Level of support indicates a specific extent of technical assistance in the total range of assistance that is provided by an information technology product (such as a software product) to its customers.
  • limited combustible cable (LCC) - Limited combustible cable (LCC), also called CMP-50 cable, is fire-resistant cable with insulation made of a synthetic material called fluorinated ethylene propylene (FEP).
  • line doubler - A line doubler is an electronic device that converts analog or digital television (TV) video signals into a format suitable for display on a computer monitor.
  • LinuxONE - LinuxONE is a mainframe series that runs on Linux created by IBM as a way of competing with cloud computing solutions.
  • lithium polymer battery (LiPo) - A lithium-polymer battery (LiPo) is a rechargeable battery that, in the case of true LiPo, uses solid polymer for the electrolyte and lithium for one of the electrodes.
  • load balancing - Load balancing is a technique used to distribute workloads uniformly across servers or other compute resources to optimize network efficiency, reliability and capacity.
  • load testing - Load testing is the process of subjecting a computer, peripheral, server, network or application to a work level approaching the limits of its specifications.
  • logic simulator - A logic simulator is a computer program that allows designers and experimenters to conduct virtual tests of complex digital systems before working with any hardware.
  • logical AND symbol - For a practical application, see logic gate.
  • logical partition (LPAR) - A logical partition (LPAR) is the division of a computer's processor s, memory, and storage into multiple sets of resources so that each set of resources can be operated independently with its own operating system instance and application s.
  • long-haul optics - Long-haul optics refers to the transmission of visible light signals over optical fiber cable for great distances, especially without or with minimal use of repeaters.
  • loose coupling - Loose coupling is a method of interconnecting the components in a system or network so that those components, also called elements, depend on each other to the least extent practicable.
  • LTO (Linear Tape-Open) tape - LTO (Linear Tape-Open) tape is an open-format tape storage technology created by Hewlett-Packard (HP), International Business Machines (IBM) and Seagate Technology.
  • Mac mini - The Mac mini from Apple is a low-cost and very compact personal computer that runs the Mac OS X operating system and is sold without a display, keyboard, or mouse.
  • machine-to-machine (M2M) - Machine-to-machine, or M2M, is a broad label that can be used to describe any technology that enables networked devices to exchange information and perform actions without the manual assistance of humans.
  • magnetic resonance imaging (MRI) - Magnetic resonance imaging (MRI) is a method of obtaining images of the interiors of objects, especially living things such as humans and animals.
  • magnetic stripe reader (magstripe reader) - A magnetic stripe reader, also called a magstripe reader, is a hardware device that reads the information encoded in the magnetic stripe located on the back of a plastic badge.
  • magnetic tape storage - Magnetic tape is one of the oldest technologies for electronic data storage.
  • mainframe (big iron) - A mainframe (also known as 'big iron') is a high-performance computer used for large-scale computing purposes that require greater availability and security than a smaller-scale machine can offer.
  • Mammoth - Mammoth is a magnetic tape and drive system used for computer data storage and archiving.
  • MDI/MDIX (medium dependent interface/MDI crossover) - MDI/MDIX is a type of Ethernet port connection using twisted pair cabling.
  • mean-swap-between-failure (MSBF) - Mean-swap-between-failure (MSBF) is a measure used by at least one company to express the reliability of an automated tape library system in which a robot is used to automatically swap tape cartridges when needed.
  • Media Access Control layer (MAC layer) - In the Open Systems Interconnection (OSI) model of communication, the Media Access Control layer is one of two sublayers of the Data Link Control layer and is concerned with sharing the physical connection to the network among several computers.
  • megabyte (MB) - As a measure of computer processor storage and real and virtual memory, a megabyte (abbreviated MB) is 2 to the 20th power bytes, or 1,048,576 bytes in decimal notation.
  • megabytes per second (MBps) - Megabytes per second (MBps) is a unit of measurement for data transfer speed to and from a computer storage device.
  • megachips per second (Mcps) - Megachips per second (Mcps) is a measure of the speed with which encoding elements, called chips (not to be confused with microchips), are generated in Direct Sequence Spread Spectrum (DSSS) signals.
  • megaflop - A megaflop is a measure of a computer's speed.
  • megahertz (MHz) - The megahertz, abbreviated MHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one million hertz (1,000,000 Hz).
  • megapixel - A megapixel (that is, a million pixels) is a unit of image sensing capacity in a digital camera.
  • memory - Memory is the electronic holding place for instructions and data that your computer's microprocessor can reach quickly.
  • memory mirroring - Memory mirroring is the division of memory on a server into two channels.
  • memory read error - A memory read error is a malfunction that occurs when data is being accessed from memory for use by a program, or when a value read from RAM fails to match an expected value.
  • memristor - A memristor is a type of resistor in which the flow of electrical current in an electronic circuit is determined by the amount of charge that has previously flowed through it.
  • memtest86 - Memtest86 is an open source diagnostics utility for testing a computer's random access memory (RAM) on an x86 machine.
  • mesh network topology (mesh network) - A mesh network is a network in which the devices -- or nodes -- are connected so that at least some, and sometimes all, have multiple paths to other nodes.
  • mezzanine - Mezzanine is a term used to describe the stacking of computer component cards into a single card that then plugs into the computer bus or data path.
  • MFSK (multiple frequency shift keying) - MFSK (multiple frequency shift keying), also called multi-frequency shift keying, is a method of signal modulation in which discrete audio tone bursts of various frequencies convey digital data.
  • mickey - The mickey, in a computing context, is a unit for the smallest detectable movement of a mouse.
  • Micro Channel Architecture (MCA) - Developed by IBM for its line of PS/2 desktop computers, Micro Channel Architecture is an interface between a computer (or multiple computers) and its expansion cards and their associated devices.
  • micro fuel cell - A micro fuel cell is a power source for electronic devices that converts chemical energy into electrical energy.
  • micro-datacenter - Micro-datacenters are very small self-contained data center systems that include all the necessary technologies for power, security, cooling and infrastructure management.
  • micrometer - A micrometer (sometimes expressed using the obsolete term, micron), is one-millionth of a meter and can also be expressed as:10 -6 meterOne thousandth of a millimeterOne 25-thousandth of an inchThe micrometer is a unit of measure for the core in optical fiber, for which the most common diameter is 62.
  • micron - The micron, officially obsolete as a term of measurement, is sometimes used by microchip and wiring manufacturers in place of micrometer, one-millionth of a meter.
  • microrobot - A microrobot is a miniaturized, sophisticated machine designed to perform a specific task or tasks repeatedly and with precision.
  • microserver - A microserver, also known as a server appliance, is a compact, less expensive, modular hardware platform designed to make installation and maintenance simpler than traditional enterprise-class rack servers.
  • Microsoft System Center Mobile Device Manager (MSCMDM) - Microsoft System Center Mobile Device Manager (MSCMDM) is server-based software that allows enterprise IT professionals to manage and automate tasks for Windows Mobile devices.
  • MIMO (multiple input, multiple output) - MIMO (multiple input, multiple output) is an antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver).
  • Mini-ITX - Mini-ITX is a compact motherboard configuration designed to support relatively low-cost computers in small spaces such as in automobiles, set-top box es, and network devices.
  • MISO (multiple input, single output) - MISO (multiple input, single output) is an antenna technology for wireless communications in which multiple antennas are used at the source (transmitter).
  • mobile Internet device (MID) - A mobile Internet device (MID) is a handheld device that is larger than a smartphone but smaller than a netbook.
  • Molex - In business since 1938, Molex manufactures electronic, electrical, and optical fiber connectors.
  • Moore's Law - The original Moore's Law derives from a speech given by Gordon Moore, later a founder of Intel, in 1965, in which he observed that the number of microcomponents that could be placed in an integrated circuit (microchip) of the lowest manufacturing cost was doubling every year and that this trend would likely continue into the future.
  • MOSFET (metal-oxide semiconductor field-effect transistor) - MOSFET (metal-oxide semiconductor field-effect transistor is a special type of field-effect transistor (FET) that works by electronically varying the width of a channel along which charge carriers (electrons or holes) flow.
  • motherboard - A motherboard is the main printed circuit board (PCB) in a computer.
  • motherboard tattoo - A motherboard tattoo is a unique code that can be written in the basic input/output system (BIOS) of a computer to ensure that system restore or diagnostic compact discs (CDs) will work only on the machine or line of machines with which the CDs are sold.
  • motion plan - A motion plan is a multi-step process that can be used by a robot to precisely position itself to perform a specified task.
  • mount - In computers, to mount is to make a group of files in a file system structure accessible to a user or user group.
  • MPP (massively parallel processing) - MPP (massively parallel processing) is the coordinated processing of a program by multiple processors that work on different parts of the program, with each processor using its own operating system and memory.
  • MRAM (magnetoresistive random access memory) - MRAM (magnetoresistive random access memory) is a way to store data bits using magnetic states instead of the electrical charges used by dynamic random access memory (DRAM).
  • MTBF (mean time between failures) - MTBF (mean time between failures) is a measure of how reliable a hardware product or component is.
  • MultiMediaCard (MMC) - A MultiMediaCard (MMC) is a tiny memory card that uses flash memory to make storage portable among various devices, such as car navigation systems, cellular phones, eBooks, PDAs, smartphones, and digital cameras, music players, and video camcorders, and personal computers.
  • multiprocessing - Multiprocessing is the coordinated processing of programs by more than one computer processor.
  • multiprogramming - Multiprogramming is a rudimentary form of parallel processing in which several programs are run at the same time on a uniprocessor.
  • myoelectric signal (motor action potential) - A myoelectric signal, also called a motor action potential, is an electrical impulse that produces contraction of muscle fibers in the body.
  • NAND flash memory - NAND flash memory is a type of nonvolatile storage technology that does not require power to retain data.
  • nano-emissive display (NED) - A nano-emissive display (NED) is a high-resolution, full-color, lightweight, physically thin display that uses carbon nanotube technology.
  • nanochip - A nanochip is an integrated circuit (IC) that is so small, in physical terms, that individual particles of matter play major roles.
  • nanocomputer - A nanocomputer is a computer whose physical dimensions are microscopic.
  • nanofabrication - Nanofabrication is the design and manufacture of devices with dimensions measured in nanometers.
  • nanolithography - Nanolithography is the art and science of etching, writing, or printing at the microscopic level, where the dimensions of characters are on the order of nanometers (units of 10 -9 meter, or millionths of a millimeter).
  • nanomachine (nanite) - A nanomachine, also called a nanite, is a mechanical or electromechanical device whose dimensions are measured in nanometers (millionths of a millimeter, or units of 10 -9 meter).
  • nanopaper - Nanopaper is a 3D rendering of thermally stable nanomaterials made of long nanowires created from titanium oxide using a hydrothermal heating process.
  • nanorobot - A nanorobot is a tiny machine designed to perform a specific task or tasks repeatedly and with precision at nanoscale dimensions, that is, dimensions of a few nanometers (nm) or less, where 1 nm = 10-9 meter.
  • nanoscale technology - Nanoscale technology is a branch of nanotechnology in which standard size tools are used to manufacture simple structures and devices with dimensions on the order of a few nanometers or less, where one nanometer (1 nm) is equal to a billionth of a meter (10 -9 m).
  • nanotransistor - A nanotransistor is a transistor - the component that acts as an electronic signal switch or amplifier - that is near the scale of a billionth of a meter (or nanometer) in size.
  • nanotube (carbon nanotube) - A carbon nanotube (CNT) is a miniature cylindrical carbon structure that has hexagonal graphite molecules attached at the edges.
  • nanowire - A nanowire is an extremely thin wire with a diameter on the order of a few nanometers (nm) or less, where 1 nm = 10 -9 meters.
  • nearline storage - Nearline storage is the on-site storage of data on removable media.
  • nematic liquid crystal - A nematic liquid crystal is a transparent or translucent liquid that causes the polarization (that is, the focusing in a plane) of light waves to change as the waves pass through the liquid.
  • Netfinity - IBM's Netfinity is an Intel-based enterprise server line that is based on IBM's X-architecture.
  • nettop - A nettop is a small, low-power and relatively inexpensive desktop computer.
  • network interface unit (NIU or Network Interface Device) - A network interface unit (NIU) (sometimes called a network interface device) is a device that serves as a common interfacefor various other devices within a local area network (LAN), or as an interface to allow networked computers to connect to an outside network.
  • network-attached storage (NAS) - Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity.

SearchCompliance

  • compliance risk

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

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

SearchSecurity

  • user authentication

    User authentication verifies the identity of a user attempting to gain access to a network or computing resource by authorizing a...

  • unified threat management (UTM)

    Unified threat management (UTM) describes an information security (infosec) system that provides a single point of protection ...

  • attack vector

    An attack vector is a path or means by which an attacker or hacker can gain access to a computer or network server in order to ...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

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

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close