1-31
Table 1-5. —Binary and Hexadecimal Comparison
Unit and Number
As in each of the previous number systems, a unit stands for a single object.
A number in the hex system is the symbol used to represent a unit or quantity. The Arabic numerals
0 through 9 are used along with the first six letters of the alphabet. You have probably used letters in math
problems to represent unknown quantities, but in the hex system A, B, C, D, E, and F, each have a
definite value as shown below:
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