M

Machine code, 211
Maestlin, Michael, 17
Magnetic core memories, 194

commercial IBM, 205
development of, 2012

Manchester Mark I. See Mark I (Manchester)
MANIAC (Mathematical Analyzer, Numerator, Integrator, and Computer), 15354
Mark-8 personal computer, 26970
Markkula, A. C., 27980
Mark I (Ferranti), 150
Mark I (Harvard)

design and development of, 1037
first stored program on, 212
IBM financing of, 18788

Mark I (Manchester), 14850, 195, 254

programming, 21011

Mark II, 108
Marquand, Allan, 91
Massachusetts Institute of Technology (MIT)

Digital Computer Lab and IBM, 230
differential analyzer and, 8687, 108, 122
SAGE computer and, 2035
Whirlwind computer and, 19697

Mathematical tables, 3940, 107
Mathematics

Boolean, 8992
complex, 1013
decimal vs. binary, 34

Mauchly, John W., 11012, 121, 152, 15758, 220, 222

Atanasoff and, 11314, 11620
background on, 112
design of EDVAC and, 13942
development of ENIAC and, 12023
ENIAC memo of, 11011
patent quarrels and, 151153
stored programs and, 13537
UNIVAC and, 15663

Maudslay, Henry, 48
McLuhan, Marshall, 285
Memory, 65

magnetic core, 194, 2012
random-access read/write, 140
regenerative, 220
reliable internal, 14851
sophisticated RAM, 261
storing data and programs in, 134

Memory chips. See RAM; ROM
Mesa transistors, 24142
Metropolis, Nicholas, 154
Microchips. See Integrated circuits
Micromodule Plan, 23233, 235
Microprocessor, 251

chips for, 264
development of, 26165
first commercial, 26465
importance of, 285

Microsoft Corporation, 275
Military

computers and, 19596
development of electronic calculators and, 108112
miniaturization of electronic components and, 23233
See Ballistics Research Laboratory; BINAC

Mill, of analytical engine, 6062
Millionaire calculator, 80
Mims, Forrest, III, 271
Miniaturization, of electronic components, 230, 23233, 235
Minicomputer, first successful, 25758
MITS (Micro Instrumental and Telemetry Systems), 27076

advertisements for, 274
Altair 8800, 27076, 278

Model 1, relay calculator, 1023
Molds, printing, 59
Monads, 35
Monroe, Jay Randolph, 79
Monroe Calculating Machine Company, 79, 103
Moore, Albert Fitler, 107
Moore, Gordon, 240, 259
Moore School of Electrical Engineering, 10710, 136137

John Mauchly and, 11920
patent quarrels and, 15153

MOS Technology, 278
Moulton, John Fletcher, 66
Muller, J. H., 42
Multiplication

analytical engine and, 61
engraved table for, 10
sign for, 12
Stepped Reckoner and, 3233

Multiplication-table calculator, 80
Multiplication tables, 910, 7980
Multiplier

five-digit, 199
IBM electronic, 190

Multiprocessing, definition of, 208
Multiprocessing computer, 255
Murrow, Edward R., 164