| Machine | Developed year | ||
| 1. | Mark-I | A. | 1673 |
| 2. | Hollerith's Machine | B | 1944 |
| 3. | Leibnitz's Calculator | C. | 1837 |
| 4. | Babbage's Analytical Engine | D. | 1890 |
A) \[1\to B,\,\,2\to D,\,\,3\to A,\,\,4\to C\]
B) \[1\to C,\,\,2\to D,\,\,3\to A,\,\,4\to B\]
C) \[1\to A,\,\,2\to B,\,\,3\to D,\,\,4\to C\]
D) \[1\to B,\,\,2\to C,\,\,3\to D,\,\,4\to A\]
E) None of these
Correct Answer: A
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