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3.
It's a guy who is addicted to a computer or internet
Martin is online again, he is truly megabyte
by Gonzoooo September 09, 2005
 
1.
(Comp Sci.)
1024 Kilobytes, written mB used to refer to size of files or media such as hard drives. Refers to amount of information in a file, or how much information can be contained on a Hard Drive or Disk. Also 1,048,576 bytes.
I downloaded at 4mBps.
Which is approximately 4096 kilobytes.
by VoiDeD May 01, 2005
 
2.
A very big bite. Could be accompanied by a roar.
I was so hungry, I finished a whopper in 2 megabytes.
by Matrixifyme August 17, 2006