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Monday, January 11, 2010

One clarification about internet service

When you see an internet speed advertised... as in.. FiOS Internet 15Mbps/5... or Comcast Performance 15Mbps/2 etc, this does NOT mean Megabytes per second.

Internet speeds are measured in Megabits per second, NOT Megabytes. We think of Megabytes because of the size of computer files etc... For example, your average 10megapixel point and shoot photo is 2.5 megabytes. This is different than your internet speed.

Here is how it works.

There are 8 bits in a byte. Simply take your internet speed and divide it by 8. That is how many megabytes per second your internet provider says is the fastest you can go. I have 15Mbps service from Comcast. So I can expect to see transfer speeds cap off at about 1.875 MegaBYTES per second.

One way to see the difference.
MegaBITS per second usually can be seen as Mbps.
MegaBYTES per second normally is listed as MBps.

Note the difference in capital letters.

Just a bit of clarity for anyone who might be wondering.

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