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| DevCentral > Weblogs > - A Software Architect's take on Network Security
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posted on Tuesday, September 02, 2008 10:18 AM
Today's word in the Networking ABC's is the letter Y. It took me a long time to find the right networking term that starts with the letter "Y". A few folks mentioned using "Yank" (as in Yank the cord) or "YMMV" (for Your Mileage May Vary) but I wasn't satisfied with those so I waited. Finally I came across a term that I thought deemed satisfactory for the Networking ABC's. The work for today is "Yobibyte". The Yobibyte is the largest unit of measurement for computer data and seeing how we are immersed in data day and night, I figured this was just the one. "Y" is for Yobibyte  Yobibyte
Pronounced: Yaw-Be-Bite The yobibyte (a contraction of yotta binary byte) is a unit of computer storage commonly abbreviated as YiB. 1 yobibyte = 280 bytes = 1,208,925,819,614,629,174,706,176 bytes = 1,024 zetabytes. The yobibyte is closely related to the yottabyte, which can either be a synonym for yobibyte, or refer to 1024 bytes = 1,000,000,000,000,000,000,000,000 bytes, depending on context. To refresh your memory on prefixes and to put the yobibyte in context with numbers you might be more familial with, here's a list of the prefixes from kibi up to yobi. | Name | Symbol | Base 2 | Base 16 | Value (Base 16) | Value (Base 10) | Binary Name | Binary
Symbol | | kibi | Ki | 210 | 162.5 | 400 | 1,024 | kilo | k/K | | mebi | Mi | 220 | 165 | 10 0000 | 1,048,576 | mega | M | | gibi | Gi | 230 | 167.5 | 4000 0000 | 1,073,741,824 | giga | G | | tebi | Ti | 240 | 1610 | 100 0000 0000 | 1,099,511,627,776 | tera | T | | pebi | Pi | 250 | 1612.5 | 4 0000 0000 0000 | 1,125,899,906,842,624 | peta | P | | exbi | Ei | 260 | 1615 | 1000 0000 0000 0000 | 1,152,921,504,606,846,976 | exa | E | | zebi | Zi | 270 | 1617.5 | 40 0000 0000 0000 0000 | 1,180,591,620,717,411,303,424 | zetta | Z | | yobi | Yi | 280 | 1620 | 1 0000 0000 0000 0000 0000 | 1,208,925,819,614,629,174,706,176 | yotta | Y |
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