How Big is Big Data?

Is my 'big' the same as your 'big'? What do *you* mean by big data? Just one definition among many...

Transcript

1. How big is
2. “Simplest definition of #BigData ever:! ‘it doesn’t fit in Excel’ :)”! Stephane Hamel @SHamelCP 3Jul2012!
3. How much data does fit into Excel, anyway
4. In one Excel sheet there are maximums of: 1,048,576! 16,384! =17,179,869,184! Rows Columns Cells h"ps://office.microso/.com/en-­‐us/excel-­‐help/excel-­‐specifica7ons-­‐and-­‐limits-­‐HP010342495.aspx! 2013  
5. In each cell there is a maximum of: 32,767! characters Each character consists of: 8 bits =! 1 byte! Unless you use Unicode, then it’s 16 bits = 2 bytes per character… But that’s not all…
6. OR! For a grand total of: = 562,932,773,552,128! >500 Terabytes (TB) characters Looking for a precise number? First decide if 1K = 1000 or 1024…http://physics.nist.gov/cuu/Units/binary.html
8. also,! …limited to available memory… Who puts 32,767 characters in a cell??? I know you do, but you’re special. J
9. so…! Dimensions! of Data! x y
10. Remember the 1,048,576! 16,384! Rows Columns &
11. 1,048,576! 16,384! Rows Columns > > your data are
12. Excel no longer works as a tool & that’s big data!
13. Rule of thumb-ish, that’s about Font Awesome by Dave Gandy - http://fortawesome.github.com/Font-Awesome [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
14. & that’s how big >2-10 GB