# Computer Science - Computer Fundamentals - Discussion

6.

Conversion of an octal number 208 to its binary number is

 [A]. 100002 [B]. 101112 [C]. 101102 [D]. 111102 [E]. None of the above

Explanation:

No answer description available for this question.

 Seema said: (Nov 3, 2011) How to calculate this answer ?

 Renjith said: (Jul 12, 2012) 20 to base 8 means 16 to base 10 i.e. 2 0 2 x 8 raise to 1 + 0 x 8 raise to 0 = 16. Now 16 base to 10 means 10000 base to 2 i.e. 16/2 = 8 remainder 0 8/2 = 4 remainder 0 4/2 = 2 remainder 0 2/2 = 1 remainder 0 So the answer is 1 0 0 0 0 (the last answer and the remainders, from bottom to top) Hope it is clear.!!

 Sonali said: (Feb 5, 2014) 20 to base 8 convert into decimals as 0*8^0+2*8^1 = 0+16 = 16. From decimal convert to binary, i.e. 16/2 = 8 remainder 0. 8/2 = 4 remainder 0. 4/2 = 2 remainder 0. 2/2 = 1 remainder 0. So the answer is 1 0 0 0 0 (the last answer and the remainders, from bottom to top).

 Ravi said: (Dec 15, 2014) Binary for 0 is 000. Binary for 2 is 010. So, binary for 20 is 010000. Basically we not consider the left zero for 1.
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