Readers are confused enough already. Let's hit the help key here and set things straight. Computers don't work with characters. They work with numbers. Not just any numbers.
Bits are beautiful in their simplicity.
A bit is the easiest concept in all of math. It's something that is either on or off, either here or there, either rain or shine. It's like a light switch. If the switch is off, the bit is 0. If the switch is on, the bit is 1.