1. M4A

2. MAC (Message Authentication Code)

3. MAC (Mandatory Access Control)

4. MAC (Media Access Control)

5. MAC address

6. MAC bridge

7. Mac emulator

8. MAC filtering

9. Mac OS (Macintosh Operating System)

10. Mac OS X (Mac OS 10)

11. Mach

12. machine code

13. machine independent

14. machine language

15. machine word

16. Macintosh computer

17. macro (1)

18. macro (2)

19. macro virus

20. Madison

21. Magellan

22. magenta

23. magnetic disk

24. magnetic drum

25. magnetic tape

26. mail filter

27. mail filtering

28. mail merge

29. mail quota

30. mail robot

31. mail server

32. mailbot

33. mailbox, mail-box, mail box

34. maildrop

35. mailer

36. mailing label

37. mailing list (1)

38. mailing list (2)

39. mailing list server

40. main memory

41. mainframe computer

42. Majordomo

43. malware (MALicious softWARE)

44. Mambo

45. MAN (Metropolitan Area Network)

46. management console

47. Mandrake Linux

48. MANET (Mobile Ad hoc Network)

49. manipulation detection

50. MAOSCO

51. map (1)

52. MAP (1) (Merchant Account Provider)

53. map (2)

54. MAP (2) (Mobile Access Protocol)

55. map (3)

56. map (4)

57. MAP (4) (Mobile Application Part)

58. MAP messages

59. MAPI (Messaging Application Program Interface)

60. margin

61. markup declaration

62. markup language

63. markup tag

64. MAS (Mozilla Application Suite)

65. masquerade

66. mass storage

67. mass storage device

68. master-slave system

69. math coprocessor

70. MAU (Media Access Unit)

71. MAU (Multistation Access Unit )

72. maximize

73. Mb (Megabit)

74. MB (Megabyte)

75. MBps (MegaBytes per Second)

76. Mbps (Megabits per second)

77. MBR (Master Boot Record)

78. m-business (mobile business)

79. MC-1X

80. MCA (Micro Channel Architecture)

81. MCF (Meta Content Framework)

82. MCI

83. MCI (Media Control Interface)

84. McKinley

85. MCM (MultiChip Module or MicroChip Module)

86. MCNS (Multimedia Cable Network System)

87. m-commerce

88. MCP (MultiChip Package)

89. MCU (MicroController Unit)

90. MCU (Multipoint Control Unit)

91. MD2

92. MD4

93. MD5

94. MDA (Mail Delivery Agent)

95. MDA (Monochrome Display Adapter)

96. MDAC (Microsoft Data Access Components)

97. MDF (Main Distribution Frame)

98. MDR (Mini Delta Ribbon) connector

99. MDR-20

100. MDX (MultiDimensional EXpressions)

101. medallion

102. media

103. media gateway

104. Melissa

105. member (1)

106. member (2)

107. memory

108. memory address

109. memory bank

110. memory card

111. memory cell

112. memory chip

113. memory controller

114. memory device

115. memory dump

116. memory effect

117. memory interleaving

118. memory leak

119. memory management

120. memory manager

121. memory mapping

122. memory module

123. memory pool

124. memory protection

125. memory resident program

126. Memory Stick

127. Memory Stick Duo

128. memory transfer

129. Mendocino

130. menu

131. menu bar

132. menu pane

133. menu-driven

134. MEPS: (Malaysian Electronic Payment System)

135. merchant

136. merchant account

137. merchant bank

138. merchant server

139. mercury oxide cell

140. merge (1)

141. merge (2)

142. Merom

143. mesh network

144. message (1)

145. message (2)

146. message (3)

147. message (4)

148. message (5)

149. message body

150. message digest

151. message header

152. message passing

153. message store

154. messaging (1)

155. messaging (2)

156. messaging API

157. messaging system

158. meta

159. meta ad

160. meta tag

161. metadata

162. metal-air cell

163. metalanguage

164. meta-message

165. Metcalfe’s Law

166. method (1)

167. method (2)

168. MF (Medium Frequencies)

169. MFC (Microsoft Foundation Class) Library)

170. MFM (Modified Frequency Modulation)

171. MFP (MultiFunction Peripheral, MultiFunction Printer)

172. MGA (Monochrome Graphics Adapter)

173. MH (Mail Handler)

174. MHOTY (My Hat’s Off To You)

175. MHS (Message Handling Service)

176. MHS (Message Handling Service) (1)

177. MHz (MegaHertz) (1)

178. MHz (MegaHertz) (2)

179. MIB (Management Information Base)

180. MiB (mebibyte)

181. MICR (Magnetic Ink Character Recognition)

182. Micro ATX motherboard

183. micro cell

184. microarchitecture

185. microchip

186. microcode

187. microcomputer

188. MicroEmacs

189. microkernel (1)

190. microkernel (2)

191. micropayment

192. microprocessor

193. MicroSD card

194. Microsoft C

195. Microsoft Exchange

196. Microsoft Mail

197. Microsoft Robotics Studio

198. microwave

199. middleware

200. MIDI (Musical Instrument Digital Interface)

201. MIDI sequencer

202. midlet

203. MIDP (Mobile Information Device Profile)

204. MIF (Machine Interface Format)

205. MIF (Maker Interchange Format)

206. MIF (Management Information File)

207. MIF (Multiple Image Facility)

208. MIMD (Multiple Instruction stream Multiple Data stream)

209. MIME (Multipurpose Internet Mail Extensions)

210. MIME type

211. MIMO (Multiple Input Multiple Output)

212. Mini ITX motherboard

213. mini-CD

214. minicomputer

215. Mini-DIN connector

216. MiniDisc

217. mini-GBIC

218. minimal spanning tree

219. minimize

220. Minipay

221. mini-phone connector

222. MiniSD card

223. Minix

224. MIP mapping

225. MIPS (Million Instruction Per Second)

226. MIPS Computer

227. mirror (mirror site)

228. mirroring

229. MIS (Management Information Systems)

230. MISD (Multiple Instructions Single Data)

231. MITS Altair 8800

232. mixed mode processing

233. mixed reality

234. M-JPEG (Motion JPEG)

235. MkLinux

236. MKV (Matroska Multimedia Container)

237. MMC (Microsoft Management Console)

238. MMC (Mobile Module Connector)

239. MMC (MultiMediaCard)

240. MMDS (Multichannel Multipoint Distribution Service)

241. MMS (Multimedia Messaging Service)

242. MMSI (Maritime Mobile Service Identity)

243. MMSI (Mobile Maritime Service Indicator)

244. MMU (Memory Management Unit)

245. MMX (Multimedia Extensions)

246. Mn (Manganese) battery

247. mnemonic

248. MNP (Microcom Networking Protocol)

249. MO (Magneto-Optical) disk

250. MO (Magneto-Optical) drive

251. mobile

252. mobile communications

253. mobile computer

254. mobile computing

255. mobile data

256. mobile device

257. mobile payment

258. mobile platform

259. mobile service

260. mobile telephone, mobile phone

261. Mobitex

262. modec

263. model (1)

264. model (2)

265. modeling

266. modeling language

267. modem

268. modem bank

269. modem pool

270. Modula-2

271. modularization

272. modulate

273. modulation

274. modulation index (1)

275. modulation index (2)

276. module (1)

277. module (2)

278. moire

279. MOM (Moment)

280. money order

281. moniker

282. monitor (1)

283. monitor (2)

284. monitor (3)

285. monitor (4)

286. monitoring

287. monospace font

288. Montecito

289. Montgomery Emacs

290. monthly minimum

291. Moore’s law

292. morphing

293. Morse code

294. Morse key

295. MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor)

296. MOSS

297. MOSS (Member of the same sex)

298. MOST (Media Oriented Systems Transport)

299. MOT (Managed Object Toolkit)

300. motherboard

301. MOTIF

302. MOTO discount rate (Mail Order / Telephone Order discount rate)

303. Motorola 68000

304. Motorola 68010

305. Motorola 68020

306. Motorola 68030

307. Motorola 68040

308. Motorola 68060

309. MOTOS (Member of the opposite sex)

310. mount (1)

311. mount (2)

312. mount (3)

313. mouse

314. mouse gesture

315. mouse pointer

316. mouse port

317. mouse trail

318. mouseclick

319. mouseover

320. MOV

321. move

322. Mozilla

323. Mozilla composer

324. Mozilla Firebird

325. Mozilla Firefox

326. Mozilla Thunderbird

327. MP/M

328. MP3 (MPEG-1 audio layer 3)

329. MP3 SHOUTcast

330. MP4

331. MPack

332. MPC (Multimedia PC)

333. MPEG (Motion Picture Experts Group)

334. MPEG transport stream packet

335. MPEG-1

336. MPEG-2

337. MPEG-21

338. MPEG-3

339. MPEG-4

340. MPEG-4 Part 14

341. MPEG-7

342. MPG

343. MPLS (MultiProtocol Label Switching)

344. MPOFR (MultiProtocol Over Frame Relay)

345. MPP (Massively Parallel Processing)

346. MPS (Mobile Positioning System)

347. MPS (MultiProcessing Specification)

348. MQSeries

349. mrouter (multicast router)

350. MRP (Material Requirements Planning )

351. MRTG (Multi Router Traffic Grapher)

352. MS (Mobile Station)

353. MS Exchange

354. MS Windows (Microsoft Windows)

355. MSB (Most Significant Bit)

356. MSC (Mobile Switching Centre)

357. MS-DOS (Micosoft Disk Operating System)

358. MSIL (MicroSoft Intermediate Language)

359. MSISDN (Mobile Subscriber ISDN)

360. MSK (Minimum Shift Keying)

361. MSN (Microsoft Network)

362. MSN TV

363. MS-Net (MicroSoft Network)

364. MSP (Merchant Services Provider)

365. MSTP (Multiple Spanning Tree Protocol)

366. MT/s (MegaTransfers per SECond)

367. MTA (Mail Transfer Agent)

368. MTP (Micropayment Transfer Protocol)

369. MTSO (Mobile Telephone Switching Office)

370. MTU (Maximum Transmission Unit)

371. MUA (Mail User Agent)

372. multicast

373. multicast address

374. multidrive

375. multimedia

376. multimedia application

377. multimedia PC

378. multi-mode fiber

379. multiple access

380. multiple access protocol

381. multiple inheritance

382. multiplexing (1)

383. multiplexing (2)

384. multiplexor

385. multiplier (1)

386. multiplier (2)

387. multiplier (3)

388. multiprocessing

389. multiprocessor

390. multiprogramming

391. multi-switch

392. multitasking

393. multithreading

394. multitier application

395. multiuser database

396. multiuser game

397. multiuser operating system

398. multiuser system

399. multivendor environment

400. MultiWin

401. MULTOS ( MULTiple Operating System)

402. MUMPS (Massachusetts General Hospital Utility Multiprogramming System)

403. MUSM (Miss you so much)

404. mutex (mutual exclusion)

405. MVCC (Multi-Version Concurrency Control)

406. MVIP (MultiVendor Integration Protocol)

407. MVNO (Mobile Virtual Network Operator)

408. MVS (Multiple Virtual Storage)

409. MX record (Mail eXchange record)

410. MyISAM

411. MySQL