How does the computer know which number (0 to 255) is
being encoded? It receives the information in the form of
computer information storage called a. The byte
itself is actually sent as a number in -
the binary system describes all numbers with combi-
nations of 0 and 1. Each digit of the binary code is
called a. So each bit is either a 0 or a 1.
Examine the chart below and you will see that the binary number code system is very
much like the decimal system that we use, except that ones, tens, hundreds, and thou-
sands places are replaced by ones, twos, fours, eights, sixteens, and so on.
figure 80.
The example above shows how only four of the pixels in a picture are encoded. Each
of the three signals is called a , composed of eight.
In the bottom row (or byte), see if you can provide the binary code which would
provide the value of 80.