180 M/W Microwave M2 Mondo 2000 MA Ma Bell MA Maintenance Administrator MAC Macintosh Computer MAC Media Access Control MAC Message Authentication MAC Multi Access Computers MACBS Multi-Access Cable Billing System MAD Malicious Art Domination MAD Massive Anarchistic Destruction MAD Mutual Assured Destruction MADN Multiple Access Directory Numbers MAG Makings of Artistic Geniuses MAI Masters of Abstractions and Illusions MAN Metropolitan Area Network MAP Maintenance and Administration Position MAP Manufacturing Automation Protocol MAPSS Maintenance & Analysis Plan for Special Services MAR Microprogram Address Register MARC Market Analysis of Revenue and Customers System MARCOM Marketing Communications MAS Main Store MAS Mass Announcement System MASB Mass Announcement System Bus MASC Mass Announcement System Controller MASM Mass Announcement System Memory MASS Mid-Atlantic and Southern States MATAC Material Acquisition MATFAP Metropolitan Area Transmission Facility Analysis Program MAU Multistation Access Unit MB Megabyte MBOD Manufacturing Board of Directors MBPS Mega-Bits Per Second MBU Manufacturing Business Unit MCA Micro Channel Architecture MCAM Manufacturing Corporate Account Manager MCC Master Control Center MCCS Mechanized Calling card Service MCESS Mechanical Component Engineering Support Service MCGA Multi-Color Graphics Array or (Adaptor) MCH Maintenance Channel MCHB Maintenance Channel Buffer MCI Microwave Communications Incorporated MCIAS Multi-Channel Intelligent Announcement System MCN Metropolitan Campus Network MCP Master Control Program MCS Meeting Communications Service MCS Multinational Character Set MCT Manufacturing Cycle Time MCTRAP Mechanized Customer Trouble Report Analysis Program MCU Multi Chip Unit MDA Monochrome Display Adapter MDACS Modular Digital Access Control System MDC Market Distributor Control MDC Meridian Digital Centrex MDD Marshals of Dynamic Discord MDDS Media and Documentation Update Service MDF Main Distribution Frame MDR Message Detail Record MDS Message Design Systems MDU Marker Decoder Unit MDX Modular Digital Exchange ME Mechanical Engineering MEC Mobile Equipment Console MELD Mechanized Engineering and Layout for Distributing Frame MEM Manufacturing Engineering and Marketing MERS Most Economic Route Selection MET Multibutton Electronic Telephone MF Multi-Frequency MFENET Magnetic Fusion Energy Network MFG Manufacturing MFJ Modification of Final Judgement MFLOPS Millions of Floating Point Operations Per Second MFM Modified Frequency Modulation MFR Multi-Frequency Receivers MFT Manifest MFT Metallic Facility Terminal MG Mastergroup MGT Mastergroup Translator MHS Message Handling System MHZ Mega-Hertz MI Machine Interface MIC Master Image Creators MIC Management Information Center MICE Modular Integrated Communications Environment MIDAS Master Integrated Distribution Subcontracting Agreement MIF Master Item File MIMG Media Industry Marketing Group MIN Mobile Identification Number MINX Multimedia Information Network Exchange MIPS Millions of Instructions Per Second MIR Material Increase Request MIR Micro-Instruction Register MIS Management Information System MIS Management Information Systems MISCF Miscellaneous Frame MISG Market Information Services Group MIT Massachusetts Institute of Technology MITS Microcomputer Interactive Test System MJU MultiPoint Junction Unit MLC Miniline Card MLCD Multi-Line Call Detail MLDS Medium Large Disk Systems MLHG Multiline Hunt Group MLP Maynard List Price MLPC Model Level planning Committee MLT Mechanized Loop Testing MMC Mickey Mouse Club MMC Minicomputer Maintenance Center MMGT Multimaster Group Translator MMOC Minicomputer Maintenance Operations Center MMS Main Memory Status MMS Memory Management System MMX Mastergroup Multiplex MNG Music N' Graphix MNP Microcom Networking Protocol MOB Men of Business MODEM Modulator/Demodulator MOF Master Order Form MOG Minicomputer Operations Group MOS Material Order System MOS Metal Oxide Semiconductor MP Micro Pirates MP Multi-Processor MPCH Main Parallel Channel MPEG Motion Pictures Experts Group MPI Micro Pirates Incorporated MPME Manufacturing Process and Material Engineering MPOW Multiple Purpose Operator Workstation MPPD Multi-Purpose Peripheral Device MPS Master Production Schedule MPSC Manufacturing Planning and Control Systems MRAA Meter Reading Access Arrangement MRC Management Response Center MRC Manufacturing Resource Center MRC Market Research Center MRF Maintenance Reset Function MRN Maroon MRP Manufacturing Resource Planning MS Maintenance State MS Milli-Seconds MSB Mid-Range Systems Business MSC Media Stimulated Calling MSCP Mass Storage Control Protocol MSD Micro Systems Development MSD Most Significant Digit MSFC Marshall Space Flight Center MSI More Stupid Initials MSPM Manufacturing System Program Manager MSSC Marketing Sales Strategy Committee MT Mitel MTB Magnetic Tape Billing MTBF Mean Time Between Failures MTBSI Mean Time Between System Interruptions MTF Master Test Frame MTNT THe MuTaNT MTP Message Transfer Part MTR Mechanized Time Reporting MTS Message Telecommunications Service MTS Message Telephone Service MTS Message Transport Service MTS Mobile Telephone Service MTSO Mobile Telephone Switching Office MTTR Mean Time to Repair MTU Maintenance Termination Unit MTU Media Tech Unit MTX Mobile Telephone Exchange MU Message Unit MULDEM Multiplexer/Demultiplexer MUX Multiplexer MVB MicroVax Business MVF MAD Virus Factory MVP Multiline Variety Package MVS Multiple Virtual Storage MW Multiwink MWI Message Waiting Indicator MXU Multiplexer Unit MOD Master's of Destruction MOD Master's of Disaster