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MB 兆字節 兆字節 MB 百萬數元組 MB Mb n 1: a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bits [synonym: {megabit}, {Mbit}, {Mb}] 2: a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes [synonym: {megabyte}, {M}, {MB}] 3: a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes [synonym: {megabyte}, {mebibyte}, {M}, {MB}, {MiB}] 4: (a British degree) a bachelor's degree in medicine [synonym: {Bachelor of Medicine}, {MB}] the size or data transfer rate of a storage device which is accessed in multiples of eight bits (e.g. {RAM}, {hard disk}) this almost certainly means megabytes, but when referring to the data transfer rate of a communications system it probably means {megabits}. Some years ago, it is claimed, "MB" always meant megabytes and "Mb" meant megabits but recently this useful distinction has been lost. (1996-09-22) |
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