Codes and inventions part 1

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A basic intro to barcodes for efl learners

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Codes and inventions part 1

  1. 1. Norman Joseph Woodland & Bernard Silver They invented something so useful we see it everyday on everything ???
  2. 2. Norman Woodland ... •was a boy scout and •a code fanatic •he learned Morse code when he was a scout
  3. 3. Norman Woodland • • was an engineering student was in a village store when …..
  4. 4. He heard the shop keeper asking for….
  5. 5. An easy way to ….. • register stock • control stock • change prices easily What did Norman Woodland and Bernard Silver invent?
  6. 6. This is called a ???
  7. 7. This barcode is ? 1. 1D 2. 2D 3. UPC
  8. 8. Solution ? 1D - information can be read in One direction UPC - Universal Product Code
  9. 9. This barcode can contain how much information? 1. 20 characters 2. 150 characters 3. 500+ characters 4. 1,000+ characters
  10. 10. The inventors of the barcode got their patent in ... 1. 1965 2. 1952 3. 1975
  11. 11. The inventors of the barcode became millionaires? True or False ?
  12. 12. They sold their invention for …. 1. $15,000 2. $500,000 3. Enough money for them to retire for ever!
  13. 13. Their invention was not used for 20 years ……. Why? What invention didn’t exist ?
  14. 14. To use a barcode you need a laser! The first laser was invented in 1962 …...
  15. 15. The first article was scanned in a shop in …. 1. 1967 2. 1983 3. 1974 4. 1978
  16. 16. What was the first article scanned? It cost 67 cents
  17. 17. What can you remember? 1. Who invented the bar code ? 2. When did they get the patent? 3. What invention is necessary to use a barcode? 4. How much money did this invention make for the inventors? 5. What was the first article scanned and when?
  18. 18. What can you remember ? 1. How much information can a barcode contain on average ? 1. What does UPC mean? 1. Is a barcode 1D 2D or 3D - this means ?

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