Question

How many bits must be “flipped” (i.e., changed from 0 to 1 or from 1 to 0) in order to capitalize a lowercase ‘a’ that’s represented in ASCII?

Answer 1

To capitalize lowercase “a” which is 0110001 which is “A” you will need to flip the following bites 01000001 as represented in ASCII. Since we are only looking at 2bit digit which is 0 and 1 which  has a 256 possible combinations from 0 up to 255.