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Megabyte or megabit?

What exactly is a megabyte? ... one of our adult children asked us if we had also heard of a petabyte as it was in a trivia quiz (see table below). It can be very confusing with all the different measurements. Here are some to keep you in the loop. A megabyte is a unit of information or computer storage equal to either 106 (1,000,000) bytes or 220 (1,048,576) bytes, depending on context. In rare cases, it is used to mean 1000×1024 (1,024,000) bytes. It is commonly abbreviated MB (not to be confused with Mb, which is used for the megabit). The term megabyte was coined in 1970. See more at Wikipedia ...

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The megabit is a unit of information storage, abbreviated Mbit or sometimes Mb.

1 megabit = 106 = 1,000,000 bits which is equal to 125,000 bytes or 125 kilobytes.

The megabit is most commonly used when referring to data transfer rates in network speeds, e.g. a 100 Mbit/s Fast Ethernet connection. In this context, like elsewhere in telecommunications, it always equals 106 bits. Residential high speed internet is often measured in megabits.

A binary counterpart of the megabit, useful for measuring RAM and ROM chip capacity, is the mebibit. See more at Wikipedia ...

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Showing at Glenbrook Cinema until April 3-9, 2008

 


 

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