A Brief History of Computing

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Across
  1. 1. Considered the first computer programmer.
  2. 4. Created by Charles Babbage in
  3. 5. Used to crack codes in the 2nd world war.
  4. 10. Considered the second generation of computer.
  5. 11. Consists of a number of electronic circuits, all on a single “chip” or semiconductor.
  6. 14. Never actually built but set the tone for the first non-human computer.
  7. 15. A device that takes binary input data and performs operations on that data from instructions stored in memory, providing the results as output.
  8. 17. Considered the first generation of computer.
  9. 18. Gained popularity in the 70s and 80s, first produced by Commodore, Apple and IBM
  10. 20. Considered the fourth generation of computer.
Down
  1. 2. Created the Difference Engine in 1822.
  2. 3. Mechanical calculator that could solve polynomial functions.
  3. 6. Refers to a computer with no moving parts.
  4. 7. Small electronic switches that revolutionised computing.
  5. 8. The fastest computer today, with 9,216 CPUs.
  6. 9. Created by Alan Turing in 1936.
  7. 12. Said to be the first electronic, digital, programmable computer.
  8. 13. Developed by Tommy Flowers in the 1940s and said to be the first electronic, digital, programmable computer. However, not general purpose.
  9. 16. Considered the third generation of computer.
  10. 19. The first microprocessor.