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

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? www.Opendata.socrata.com

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

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

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

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’

‘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

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