1-62
Q110.
SUMMARY
Now that you’ve completed this chapter, you should have a basic understanding of number systems.
The number systems that were dealt with are used extensively in the microprocessor and computer fields.
The following is a summary of the emphasized terms and points found in the "Number Systems" chapter.
The UNIT represents a single object.
A NUMBER is a symbol used to represent one or more units.
The RADIX is the base of a positional number system. It is equal to the number of symbols used in
that number system.
A POSITIONAL NOTATION is a system in which the value or magnitude of a number is defined
not only by its digits or symbol value, but also by its position. Each position represents a power of the
radix, or base, and is ranked in ascending or descending order.
The MOST SIGNIFICANT DIGIT (MSD) is a digit within a number (whole or fractional) that has
the largest effect (weighing power) on that number.
The LEAST SIGNIFICANT DIGIT (LSD) is a digit within a number (whole or fractional) that has
the least effect (weighting power) on that number.
