Class 5th
Subject- Computer
TOPIC - Ch - 1 Evolution of Computer
Q-1 - Write down the name of computing devices  and  who developed it read   in the topic "History of Computer".
Ans-1. Abacus. - China
        2. Pascal Adding machine - Blaise Pascal
        3. Leibniz Calculator  -  Leibniz 
        4. Difference Engine -  Charles Babbage
        5. Analytical Engine -   Charles Babbage and Augusta Ada Lovelace -  
        6. Boolean Logic system - George Boole
        7. Tabulating Machine -  Dr Herman Hollerith 
       8 . EDVAC -John Von Neumann 
       9. Mark I - Howard Aiken
      10. ENIAC - JOHN MAUCHLY and J. PRESPER
      11. UNIVAC I  - JOHN MAUCHLY and J. PRESPER
 
 
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