1. Ada King wrote the demonstration program for the Analytical Engine in ___.
2. The abacus remained the only means of calculation up to ___.
3. In ___, a Swedish printer built a working ___ based on ___'s ideas.
4. The calculator designed by Pascal was called the ___.
5. The Jacquard loom was invented by ___ in ___.
6. In ____, Babbage abandoned the Difference Engine.
7. ___ designed a special gearing system to enable multiplication on Pascal’s machine.
8. In 1823, ___ obtained a government grant to build the___.
9. In ___, a calculating machine called the Step Reckoner was invented by ___.
10. Augusta Ada King was the daughter of the famous English poet ___.
11. The ___ was the first device to use punch cards for inputting data.
12. The first mechanical calculator was the ___.
13. After the invention of logarithms, ___ constructed the first slide-rule in ___.
14. The idea of mechanical calculating mathematical tables first came to ___ in ___.
15. Babbage worked on the ___ for nearly 40 years.
16. ___ is recognized as the world’s first programmer.
17. The abacus was devised in ___ in ___.
18. ___ built the first adding machine in 1642.