Technology terms starting with M

1,143 terms

M (1) Model. (2) Million. (3) Mega.
M by N A type of Symmetrix grouping in which up to two Symmetrix frames may be configured on either side of a data replication link in a Metrocluster/SRDF…
M&LC Missile and Launch Control.
M&S (1) Materials and Structures. (2) Modeling and Simulation.
M-patch bay A patching facility designed for patching and monitoring digital data circuits at data signaling rates from 1 Mb/s (megabits per second) to 3 Mb/s.
M-PEG Abbreviation for Motion Picture Experts Group. 2. In digital television signal recording or transmission, the designator that identifies a certain coding…
m-sequence See n-sequence.
M-T-M Model Test Model.
M/LWIR Medium/Long Wavelength Infrared.
M/P Manpower/Personnel.
MAA Mission Area Analysis.
MAAG Military Assistance Advisory Group.
MAB Abbreviation for monoclonal antibody.
MAC (1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart.
MAC Addresses The Media Access Control Address is the hardware address for a Network Interface Controller.
MAC label An attribute of a subject or object which represents the sensitivity of the subject or object and is used for mandatory access control decisions.
MACCK Multi-Application Command and Control Kit (GD term for IVIS follow-on).
MACCS Marine Corps Air Command and Control System.
machine instruction An instruction that is written in a machine language and can be executed directly by the processor for which it was designed without translation or…
machine language A language that need not be modified, translated, or interpreted before it can be used by the processor for which it was designed.
machine learning The ability of a device to improve its performance based on its past performance.
machine readable records records that cannot be viewed or understood without help of some electro-mechanical device such as a computer.
machine utilization The amount of machine capacity used to complete a particular request (for example SELECT, GET, PUT, and so on), normalized to the hourly capacity of a…
machine word Synonym computer word.
Machine-generated Don't use software tools that purport to auto-generate doorway pages. These pages are usually devoid of meaningful content.
machine-independent In telecommunications, computer, and data processing systems, pertaining to operations, procedures, computer programs, and processing that do not depend…
machine-oriented language Synonym computer-oriented language.
machine-readable medium A medium capable of storing data in a form that can be accessed by an automated sensing device.
machine-readable record Digitized and coded information that, in order to be understood, must be translated by a computer or other type of equipment
MACOM Major Army Command.
Macro A series of commands that are configured to be executed together with one button press.
Macro Virus A virus that attaches itself to documents and uses the macro programming capabilities of the documents application to execute and propagate.
macrobend A relatively large-radius bend in an optical fiber, such as might be found in a splice organizer tray or a fiber-optic cable that has been bent.
macrobend loss In an optical fiber, that loss attributable to macrobending. Synonym curvature loss.
MAD (1) Mission Area Deficiency. (2) Mutually Assured Destruction.
MADCAP Mosaic Array Data Compression and Analysis Program.
MADS Modified Air Defense System.
MAE Medium Altitude Endurance.
magic Technically speaking, any extra semantics attached to a variable such as $!, $0, %ENV, or %SIG, or to any tied variable.
magic cookie Synonym cookie.
magic number A constant value with a significance within a particular context. For instance, the value 12 could mean many different things - the number of hours you…
Magic Packet A broadcast frame used with wake-on-LAN (WOL) technology. The data that is contained in a Magic Packet is the defined constant as represented in…
magical increment An "increment" operator that knows how to bump up alphabetics as well as numbers.
magical variables Special variables that have side effects when you access them or assign to them.
magnetic card A card with a magnetizable surface on which data can be stored and retrieved.
magnetic circuit The complete closed path taken by magnetic flux. 2. A region of ferromagnetic material, such as the core of a transformer or solenoid, that contains…
magnetic core storage In computer technology, a storage device that uses ferromagnetic materials such as iron, iron oxide, or ferrite and in such shapes as wires, toroids, and…
magnetic disk See diskette, hard disk.
magnetic drum A right circular cylinder with a magnetizable surface on which digital data can be stored and retrieved.
magnetic media Any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information See also optical disk and…
Magnetic particles The magnetic particles incorporated in the binder to form the magnetic layer on a magnetic tape.
Magnetic pigment See magnetic particles.
Magnetic remanence The strength of the magnetic field that remains in a tape or magnetic particle after it is (1) exposed to a strong, external magnetic field and (2) the…
Magnetic retentivity See magnetic remanence.
magnetic storm A perturbation of the Earth's magnetic field, caused by solar disturbances, usually lasting for a brief period (several days) and characterized by large…
magnetic tape A magnetically coated strip of plastic on which analog or digital data can be encoded See also storage media.
magneto-ionic double refraction The combined effect of the Earth's magnetic field and atmospheric ionization, whereby a linearly polarized wave entering the ionosphere is split into two…
magneto-optic See magneto-optic effect.
magneto-optic effect Any one of a number of phenomena in which an electromagnetic wave interacts with a magnetic field, or with matter under the influence of a magnetic field.
MAGTF Marine Air-Ground Task Force.
mail bombing Synonym spamming. See flooding, spam.
mail contact A mail-enabled Active Directory contact that contains information about people or organizations that exist outside an Exchange Server organization.
mail exchange record (MX record) An entry in a domain name system database that directs the routing of mail by mail transfer agents. [After Bahorsky]
mail exploder Part of an e-mail delivery system that allows a message to be automatically and efficiently delivered to a list of addresses, thus implementing mailing…
mail gateway A computer that connects two or more electronic mail systems (especially dissimilar mail systems on two different networks) and transfers messages between…
Mail List A mailing list is a list of people who subscribe to a periodic mailing distribution on a particular topic.
mail management application of records management principles and techniques to the flow of mail within the organization
mail path A series of machine names used to direct electronic mail from one user to another. [Bahorsky]
mail reflector Synonyms e-mail exploder, mail exploder. 2. A program that forwards e-mail to individuals at a (usually) unchanging e-mail address, even when the…
mail user A mail-enabled Active Directory user that represents a user outside the Exchange organization. Each mail user has an external e-mail address.
mail user agent The software used to access and manage a user's electronic mail. [After Bahorsky]
mail-enabled An Active Directory object that has at least one e-mail address defined. If the user is mail-enabled, the user has an associated e-mail address, but does…
mail-enabled universal distribution group A group of recipients that are created to expedite the mass e-mailing of messages and other information.
Mailbox An area on a storage device where email is placed. In email systems, each user has a private mailbox.
mailbox database A database for storing mailboxes in Exchange Server. The mailbox database manages the data in mailboxes, tracks deleted messages and mailbox sizes, and…
mailbox delivery queue A group of temporary queues that hold messages that are being delivered to a Mailbox server by using encrypted Exchange RPC.
mailbox disk One of a set of disks owned by each filer that is used to store the cluster state information of the filer.
mailbox provider An organization that provides email mailbox hosting services. Mailbox providers are sometimes referred to as Internet Service Providers, even if they only…
Mailbox server role An Exchange Server 2007 server role that provides e-mail storage and advanced scheduling services for Microsoft Office Outlook users.
mailbox store A database for storing mailboxes in Exchange. Mailbox stores store data that is private to an individual and contain mailbox folders generated when a new…
mailbox user A mail-enabled Active Directory user object that has mailbox attributes. [Exchange 2007]
mailbox-enabled An Active Directory object that has an Exchange mailbox associated with it; therefore it can both send and receive messages within the Exchange system.
mailbox-type facility A facility in which a message from an originating user is stored until the destination user requests delivery of that message.
Mailer Daemon A Unix program used in the management of e-mail messages. Not generally encountered by a user unless the user gets a bounced message.
Mailing List A collection of e-mail addresses of people who have asked to receive regular mail discussions on a particular topic, and for which they can sometimes…
Mailing List Manager An automated program to handle the administrative functions of adding/removing subscribers, disseminating the message postings, sending topic related and…
mailing list server Synonym list server.
mailserver A computer that provides e-mail management and storage space for messages pertaining to a group of subscribers. [Bahorsky]
Mailto A HTML tag that allows visitors to a site click on a link that creates a new message in their default email client.
Main Beam The primary directional EMR emitted from radar transmitters.
main distribution frame (MDF) A distribution frame on one part of which the external trunk cables entering a facility terminate, and on another part of which the internal user…
main frame Synonym (in telephony) main distribution frame.
main heading In indexing, the heading under which a related group of subheadings or other subdivisions belong See also primary subject.
main lobe Of an antenna radiation pattern, the lobe containing the maximum power (exhibiting the greatest field strength). Note: The horizontal radiation pattern, i.
main method The starting point for program execution public static void main(String[] args)
main route table The default route table that any new VPC subnet uses for routing. You can associate a subnet with a different route table of your choice.
main station A user instrument, e.g., telephone set or terminal, with a distinct call number designation, connected to a local loop, used for originating calls, and on…
main storage In a computer, program-addressable storage from which instructions and other data may be loaded directly into registers for subsequent execution or…
mainframe A class of powerful, general purpose computers that can manage large amounts of data at high speed.
maintainability A characteristic of design and installation, expressed as the probability that an item will be retained in or restored to a specified condition within a…