Ó 2001
Prentice Hall
2.11
A Bit About Bits
•A bit (binary digit)
–is the smallest unit of information
–can have two values
–can represent numbers,
codes, or
instructions
lThink of these values as switches: yes and no, black and white, high and low, or
on
on
and off
Off
On
“Even the most sophisticated ocmputer is really only a large well-organized volume of bits.”
David Harel