1. Connected sources and available data
Big Data & Privacy
Connected sources and available data

2. Information requires space
Data – measurements, records, facts – all require space
Storage concern  memory
Where do we get data from?
Where might we get info about health stats?
Where might we get info about transportation?
Social media usage?

3. How much can you remember?
Bit – one binary digit
Byte – 8 bits [storage for a single letter of a word]
KiloByte – 1024 bytes (binary not decimal)
Megabyte – 1024 KB. One minute of sound recording. A novel.
GigaByte – A symphony in high fidelity. One movie.
Terabyte – All the books in a large library. ~ 1,610 CDs

4. How much can you remember?
Petabyte – 223,100 DVDs (878 feet tall) or mile high CD stack
Exabyte – A list of all words ever spoken by humankind
Zettabyte – Recorded video for all TV and movies
Yottabyte – Would fill DE and RI with a million datacenters

5. Moore’s Law
~ Computer Processors will double in complexity approximately every 2 years. Gordon Moore – 1965 Nintendo SNES Game Cube Wii

6. Challenges
Given a tool that can provide access to large data sets, what might be some issues that arise?
What would it be like to try and locate a friend, by sight, in NYC?
What other challenges might we encounter?
Visualization, delay, multiple ‘stories’

7. ‘Internet of Things’ RFID  Radio Frequency ID
RFID can communicate on a network  Internet
We know every device on the internet requires its own IP address.
Currently we have an IPv4 (internet protocol version 4)
Only allows a total of ~4 billion addresses
32 bit address
New IPv6 will allow 300 undecillion unique addresses
That’s a 3 followed by 38 zeroes

8. Let’s find sources of data
With a partner (or 3), choose one of the sources on the sheet You may find one of your own Write your responses