Browse Definitions :

Browse Definitions by Alphabet

MAS - MET

  • mass notification system (MNS) - A mass notification system is a platform that sends one-way messages to inform employees and the public of an emergency.
  • Massachusetts data protection law - What is the Massachusetts data protection law?The Massachusetts data protection law is legislation that stipulates security requirements for organizations that handle the private data of residents.
  • massive open online course (MOOC) - A massive open online course (MOOC) is a free web-based distance learning program that is designed for large numbers of geographically dispersed students.
  • Master Boot Record (MBR) - The Master Boot Record (MBR) is the information in the first sector of a hard disk or a removable drive.
  • master data - Master data is the core data that is essential to operations in a specific business or business unit.
  • master data management (MDM) - Master data management (MDM) is a process that creates a uniform set of data on customers, products, suppliers and other business entities from different IT systems.
  • master/minion (formerly master/slave) - In computer networking, master/slave is a model for a communication protocol in which one device or process (known as the master) controls one or more other devices or processes (known as slaves).
  • material density - Material density, more often referred to simply as density, is a quantitative expression of the amount of mass contained per unit volume.
  • material requirements planning (MRP) - Material requirements planning (MRP) is a system for calculating the materials and components needed to manufacture a product.
  • Mathematical symbols - This table contains mathematical symbols and links to definitions of what they represent and how they are used.
  • matrix - Apart from information technology, matrix (pronounced MAY-triks) has a number of special meanings.
  • matter - Matter is a substance made up of various types of particles that occupies physical space and has inertia.
  • maturity grid (maturity model) - A maturity model is a matrix for evaluating an organization's level of progress towards a goal.
  • Maven - Maven is an Apache Software Foundation build tool for project management that automates Java projects.
  • maximizer - A maximizer is an individual who consistently seeks the optimal outcome for any endeavor.
  • maximum segment size (MSS) - The maximum segment size (MSS) is the largest amount of data, specified in bytes, that a computer or communications device can handle in a single, unfragmented piece.
  • maximum tolerable period of disruption (MTPOD) - Maximum tolerable period of disruption (MTPOD) is the time following a disaster after which an organization’s viability will be irreversibly impacted if production isn't resumed.
  • maximum transmission unit (MTU) - The maximum transmission unit (MTU) is the largest size frame or packet -- in bytes or octets (eight-bit bytes) -- that can be transmitted across a data link.
  • MBean (managed bean) - In the Java programming language, an MBean (managed bean) is a Java object that represents a manageable resource, such as an application, a service, a component, or a device.
  • MCITP (Microsoft Certified IT Professional) - An MCITP (Microsoft Certified IT Professional) is a credential that proves that an individual has a complete set of skills required to perform a particular IT job role, such as enterprise or virtualization administrator.
  • McKesson Corp. - McKesson Corp.
  • MCSA (Microsoft Certified Solutions Associate) - MCSA (Microsoft Certified Solutions Associate) is a certification program intended for people who seek entry-level jobs in an information technology (IT) environment.
  • MD5 - The MD5 (message-digest algorithm) hashing algorithm is a one-way cryptographic function that accepts a message of any length as input and returns as output a fixed-length digest value to be used for authenticating the original message.
  • MDI/MDIX (medium-dependent interface/MDI crossover) - MDI/MDIX is a type of Ethernet port connection that uses twisted-pair cabling to link two networked devices.
  • mean time to detect (MTTD) - Mean time to detect or discover (MTTD), also referred to as mean time to identify (MTTI), is a measure of how long problems exist in an IT deployment before the appropriate parties become aware of them.
  • Meaningful Use - In the context of health IT, meaningful use is a term used to define minimum U.
  • meaningful use attestation - Meaningful use attestation, in a health information technology (HIT) context, is a process that documents that an organization or individual has successfully demonstrated meaningful use and is successfully fulfilling the requirements for electronic health records (EHR) and related technology.
  • meaningful use stage 1 - Meaningful use stage 1 is the first phase of the United States federal government's meaningful use incentive program, which details the requirements for the use of electronic health record (EHR) systems by hospitals and eligible health care professionals.
  • meaningful use stage 2 - Meaningful use stage 2 is the second phase of the meaningful use incentive program that details the second phase of requirements for the use of electronic health record (EHR) systems by hospitals and eligible health care providers.
  • meaningful use stage 3 - Meaningful use stage 3 is the third phase of the federal incentive program that details requirements for the use of electronic health record systems by hospitals and eligible healthcare professionals.
  • mebibyte (MiB) - A mebibyte (MiB) is a unit of measurement used in computer data storage.
  • mechanical refrigeration - Mechanical refrigeration, often referred to simply as refrigeration or air conditioning, is a process by which heat is removed from a location using a human-made heat exchange system.
  • Mechanics-Dynamics-Aesthetics (MDA) - Mechanics-Dynamics-Aesthetics (MDA) is a design framework that helps video game designers (and the software developers who work with them) understand what effect a game's rules, player capabilities and setting have on the success of a game.
  • mechatronics - Mechatronics is a branch of engineering that focuses on designing, manufacturing and maintaining products that have both mechanical and electronic components.
  • media access management - In the Open Systems Interconnection (OSI) communication reference model, media access management is performed by the Media Access Control (MAC) sublayer of the Data-Link Layer.
  • media gateway - A media gateway is any device, such as a circuit switch, IP gateway, or channel bank that converts data from the format required for one type of network to the format required for another.
  • medical imaging (radiology) - Medical imaging, also known as radiology, is the field of medicine in which medical professionals recreate various images of parts of the body for diagnostic or treatment purposes.
  • medical scribe - A medical scribe is a healthcare employee that assists medical professionals with documenting patients' medical histories.
  • medical transcription (MT) - Medical transcription (MT) is the manual processing of voice reports dictated by physicians and other healthcare professionals into text format.
  • Meditech (Medical Information Technology Inc.) - Meditech (Medical Information Technology Inc.
  • medium - A medium is a third-party or element through which a message is communicated.
  • meet-in-the-middle attack - Meet-in-the-middle is a known plaintext attack that can greatly reduce the number of brute-force permutations required to decrypt text that has been encrypted by more than one key.
  • megabit - In data communications, a megabit is a million binary pulses, or 1,000,000 (that is, 106) pulses (or "bits").
  • megabits per second (Mbps) - Megabits per second (Mbps) are units of measurement for network bandwidth and throughput.
  • 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.
  • 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).
  • megatransfer - On a Small Computer System Interface (SCSI) computer bus, a megatransfer is one million data transfers.
  • Melissa virus - Melissa was a type of email virus that initially become an issue in early 1999.
  • Meltdown and Spectre flaws - Meltdown and Spectre flaws are variations on vulnerabilities to most computer chips manufactured in the past 20 years that can gain access to data and information stored on the device.
  • Memcached - Memcached is an open source, distributed memory object caching system that alleviates database load to speed up dynamic Web applications.
  • meme - A meme is an idea that is passed on from one human generation to another.
  • memorandum of understanding (MOU) - A memorandum of understanding (MOU) is a formal agreement that outlines plans for a common line of action between two or more parties.
  • memory - Memory is the electronic holding place for the instructions and data a computer needs to reach quickly.
  • memory dump - A memory dump is the process of taking all information content in RAM and writing it to a storage drive.
  • memory dump attack - A memory dump attack is the capture and use of RAM content that was written to a storage drive during an unrecoverable error, which was typically triggered by the attacker.
  • memory management - Memory management is the process of controlling and coordinating a computer's main memory.
  • memory management unit (MMU) - A memory management unit (MMU) is a computer hardware component that handles all memory and caching operations associated with the processor.
  • memory map - A memory map is a massive table, in effect a database, that comprises complete information about how the memory is structured in a computer system.
  • memory mirroring - Memory mirroring is the division of memory on a server into two channels.
  • memory overcommit (or overcommitment) - Memory overcommit (or overcommitment) is a hypervisor feature that allows a virtual machine (VM) to use more memory space than the physical host has available.
  • memory paging - Memory paging is a memory management technique for controlling how a computer's memory resources are shared.
  • 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.
  • memory-scraping malware - Memory-scraping malware is a type of malware that helps hackers to find personal data.
  • 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.
  • MEMS (micro-electromechanical systems) - A MEMS (micro-electromechanical system) is a miniature machine that has both mechanical and electronic components.
  • menu - A menu is a set of options presented to the user of a computer application to help them find information or execute a function.
  • menu bar - The menu bar is the part of a browser or application window, typically at the top left side, that houses drop-down menus that allow the user to interact with the content or application in various ways.
  • mergers and acquisitions (M&A) - Mergers and acquisitions (M&A) is the area of corporate finances, management and strategy dealing with purchasing and/or joining with other companies.
  • Merkle tree - A Merkle tree is a data structure in blockchain and cryptography that labels leaf nodes with the cryptographic hash of a data block and non-leaf nodes with the hash of their child nodes.
  • Mersenne prime (or Marsenne prime) - A Mersenne (also spelled Marsenne) prime is a specific type of prime number.
  • mesh network topology (mesh network) - A mesh network is a network in which devices -- or nodes -- are linked together, branching off other devices or nodes.
  • message - (Using e-mail, a message is an individual piece of mail.
  • message authentication code (MAC) - A message authentication code (MAC) is a cryptographic checksum on data that uses a session key to detect both accidental and intentional modifications of the data.
  • message passing interface (MPI) - The message passing interface (MPI) is a standardized means of exchanging messages between multiple computers running a parallel program across distributed memory.
  • message queueing - In programming, message queueing is a method by which process (or program instances) can exchange or pass data using an interface to a system-managed queue of messages.
  • Message Session Relay Protocol (MSRP) - Message Session Relay Protocol (MSRP) is a protocol for exchanging a series of related instant messages across an IP network in the context of a session.
  • message-driven processing - Message-driven processing is an approach used within the client/server computing model in which a client (for example, your Web browser) sends a service request in the form of a specially-formatted message to a program that acts as a request broker, handling messages from many clients intended for many different server applications.
  • messaging - In general, messaging (also called electronic messaging) is the creation, storage, exchange, and management of text, images, voice, telex, fax, e-mail, paging, and Electronic Data Interchange (EDI) over a communications network.
  • messaging security - Messaging security is a subcategory of unified threat management (UTM) focused on securing and protecting an organization’s communication infrastructure.
  • messaging server - A messaging server is a middleware program that handles messages that are sent for use by other programs using a messaging application program interface (API).
  • meta - Metadata is a description of data.
  • meta description tag - A meta description tag is the snippet of HTML code that belongs inside the header of a web page.
  • metabolomics - Metabolomics is a term sometimes used to describe the emerging science of measurement and analysis of metabolites, such as sugars and fats, in the cells of organisms at specific times and under specific conditions.
  • metacharacter - A metacharacter (sometimes spelled meta character or meta-character) is a special character in a program or data field that provides information about other characters.
  • metacoin platform - Metacoin platform is the information technology infrastructure that enables digital currency and digital asset transactions.
  • metadata - Often referred to as data that describes other data, metadata is structured reference data that helps to sort and identify attributes of the information it describes.
  • metadata management - Metadata management is the oversight of data associated with data assets to ensure that information can be integrated, accessed, shared, linked, analyzed and maintained to best effect across an organization.
  • metadata security - Metadata is defined as “data about data.
  • metafile - A metafile is a file containing information that describes or specifies another file.
  • metainformation - Metainformation is information about information.
  • metal-oxide semiconductor field-effect transistor (MOSFET) - The metal-oxide semiconductor field-effect transistor (MOSFET, pronounced MAWS-feht) is the most common type of field-effect transistor (FET).
  • metamorphic and polymorphic malware - Metamorphic and polymorphic malware are two types of malicious software (malware) that can change their code as they propagate through a system.
  • Metamorphic virus - A metamorphic virus is a type of malware that is capable of changing its code and signature patterns with each iteration.
  • metasyntactic variable - In programming, a metasyntactic (which derives from meta and syntax) variable is a variable (a changeable value) that is used to temporarily represent a function.
  • meter - The meter (abbreviation, m; the British spelling is metre) is the International System of Units (SI) unit of displacement or length.
  • meter per second (m/s or m/sec) - The meter per second (symbolized m/s or m/sec) is the Standard International (SI) unit of linear speed.
  • meter per second squared - The meter per second squared (symbolized m/s 2 or m/sec 2) is the Standard International (SI) unit of acceleration vector magnitude.
  • metered services (pay-per-use) - Metered services (also called pay-per-use) are any type of payment structure in which a customer has access to potentially unlimited resources but only pays for what they actually use.
  • method - In object-oriented programming, a method is a programmed procedure that is defined as part of a class and included in any object of that class.
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