LSM (Library Storage Module)a tape library containing cells (or slots or bins) in which cartridges are stored, usually for access by an automated cartridge system. See ACS.
luminance range1. In CRT displays, the difference in brightness between the lightest and the darkest element of a scene or its display. [After SMPTE] 2.
luminance signal1. In television technology, the signal that describes (a) the distribution of brightness levels within the image and (b) the equation for deriving that…
lurkerIn the Internet, a participant in a chat room or a subscriber to a mailing list or newsgroup who passively observes but does not actively participate in…
lurkingPassive participation in (i.e., monitoring) the activities of a mailing list, a newsgroup, an IRC channel, a video connection, or any other Internet…
lvalueTerm used by language lawyers for a storage location you can assign a new "value" to, such as a "variable" or an element of an "array".
lvalue modifierAn adjectival pseudofunction that warps the meaning of an "lvalue" in some declarative fashion.
LVD (Low Voltage Differential)Introduced with Ultra2 SCSI, and further enhanced with Ultra160 and Ultra320 SCSI, LVD technology enables data transfer to 320MB/s and supports cable…
LVSLoral Vought Systems, a defense industry contractor.
M by NA 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&S(1) Materials and Structures. (2) Modeling and Simulation.
M-patch bayA 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-PEGAbbreviation for Motion Picture Experts Group. 2. In digital television signal recording or transmission, the designator that identifies a certain coding…
MAC(1) OBSOLETE. Military Airlift Command. See AMC. (2) Maintenance Allocation Chart.
MAC AddressesThe Media Access Control Address is the hardware address for a Network Interface Controller.
MAC labelAn attribute of a subject or object which represents the sensitivity of the subject or object and is used for mandatory access control decisions.
MACCKMulti-Application Command and Control Kit (GD term for IVIS follow-on).
machine instructionAn 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 languageA language that need not be modified, translated, or interpreted before it can be used by the processor for which it was designed.
machine learningThe ability of a device to improve its performance based on its past performance.
machine readable recordsrecords that cannot be viewed or understood without help of some electro-mechanical device such as a computer.
machine utilizationThe 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-generatedDon't use software tools that purport to auto-generate doorway pages. These pages are usually devoid of meaningful content.
machine-independentIn telecommunications, computer, and data processing systems, pertaining to operations, procedures, computer programs, and processing that do not depend…