M - Definitions
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M
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... (Continued)
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Management and Operations (M&O) Stamp of Approval
The Management and Operations (M&O) Stamp of Approval from the Uptime Institute is a certification of the critical facilities and management operations procedures of a data center.
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Mathematical Symbols
This table contains mathematical symbols and links to definitions of what they represent.
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mechanical refrigeration
Mechanical refrigeration, often referred to simply as refrigeration, is a process by which heat is removed from a location using a man-made heat-exchange system.
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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.
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moves, adds and changes (MAC)
Moves, adds and changes (MAC) keep computing equipment in line with user needs and up-to-date, with disciplined process management.
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multi-core processor
A multi-core processor is an integrated circuit (IC) to which two or more processors have been attached for enhanced performance, reduced power consumption, and more efficient simultaneous processing of multiple tasks.
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multiprocessing
Multiprocessing is the coordinated processing of programs by more than one computer processor.
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MVS (Multiple Virtual Storage)
MVS (Multiple Virtual Storage) is IBM's best-known operating system for mainframe and large server computers.