How many bits are needed to represent the decimal number 200?

Log 2 200 = In 200 ã• In 2 = 7.6 ... â need 8 bits. If a signed number is being stored, then 9 bits would be needed as one as one would be needed to indicate the sign of the number.

8 (assuming unsigned numbers - i. e., you don't reserve a bit for the sign.