Question

fill in the blanks.1)People started doing calculation with the help of............2)The earliest calculations device is called................3)Abacus was invented about......4)...............developed the analytical engine which had features of present day computers.5)Basic pascal invented.................. which was able to perform only.............. and...................6)................. is known as father of computer.

Answer 1

6. Charles babage is the answer ...

Answer 2

1.calculator
2.abacus.
3.400 yrs ago
4.charles babbage.