History of Computers

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Across
  1. 2. A simulated experience created using 3D display
  2. 5. A type of calculator made of string and beads.
  3. 6. new technology made computers less expensive or _____.
  4. 8. People who write instructions for the computer.
Down
  1. 1. This replaced vacuum tubes in computers
  2. 3. The first computer was invented by Charles_______ in the 1830s
  3. 4. Computers invented in the 1940s
  4. 6. A microprocessor is tiny
  5. 7. 1st & 2nd computer generation filled a whole _______.
  6. 9. This technology thinks like humans.