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In the classroom

Information Processing. In the classroom. In the workplace. Information is growing exponentially!. New PC can be equipped with 3 TB hard drive (that’s ~3,000 GB or 3,000,000 MB!). World’s estimated data capacity in 2012 was over 2.5 zettabytes. What’s a zettabyte ?. Units of Measure.

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In the classroom

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  1. Information Processing In the classroom In the workplace

  2. Information is growing exponentially! • New PC can be equipped with 3 TB hard drive (that’s ~3,000 GB or 3,000,000 MB!). • World’s estimated data capacity in 2012 wasover 2.5 zettabytes. • What’s a zettabyte?

  3. Units of Measure • 1 Bit = Binary Digit • 8 Bits = 1 Byte = 100 B • 1024 Bytes = 1 Kilobyte = 103 B • 1024 Kilobytes = 1 Megabyte = 106 B • 1024 Megabytes = 1 Gigabyte = 109 B • 1024 Gigabytes = 1 Terabyte = 1012 B • 1024 Terabytes = 1 Petabyte = 1015 B • 1024 Petabytes = 1 Exabyte = 1018 B • 1024 Exabytes = 1 Zettabyte = 1021 B • 1024 Zettabytes = 1 Yottabyte = 1024 B • 1024 Yottabytes = 1 Brontobyte = 1027 B • 1024 Brontobytes = 1 Geopbyte = 1030 B

  4. Handling Information in a Modern World • Acquiring information: locate and cite sources, assess source validity, use search tools • Evaluating information: current, valid, reliable source • Organizing: use tables, spreadsheets, databases, index • Managing/Presenting: make graphs and charts, type of graph (x-y, pie chart, bar chart), don’t distort scale • Interpreting: statistics, graphs, linear/log scales, timelines

  5. Acquiring Information:A Scavenger Hunt • Given a list of items: Search, Find, and Cite. • Internet search engines are powerful. • Citation information: • Text: Last name, First name. Title of Book. Place of Publication: Publisher, Year of Publication. • Web: Page source (organization or business): Page title. Date of publication.Date of collection, URL. • A citation enables a reader to verify your find.

  6. Evaluating Information • Printed publications are edited, proofed, typeset, and printed: usually reliable. • Web content can go from keyboard to web page in a matter of seconds: trustworthy? • “Let the Reader beware.” • Who is responsible? • What is the source? • How accurate and reliable?

  7. Organizing Information:Using a Spreadsheet • Data, data everywhere! • Copy/paste data into a spreadsheet so you can: • Reorder it • Label it • Calculate with it • Sort it • Example supply of data: sports statistics from several teams

  8. Managing Information • Sort the data by various characteristics and combinations of characteristics. • Filter data to examine a subset of all the data. • Calculate various statistics and parameters to interpret the data.

  9. Presenting Information • Present the data in various ways (charts, graphs) and groupings (pairings).

  10. Interpreting Information • Calculate statistics • Correlation • Regression • Statistical significance • Consider transformations • Logarithmic • Exponential

  11. Quotable Quotes You can use all the quantitative data you can get, but you still have to distrust it and use your own intelligence and judgment. Alvin Toffler

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