Tino APCS

Lesson A21

Next: Introduction To...

Number Systems

Lesson Overview: Knowing how the computer stores information will give you an understanding of some of the common computational errors such as over-flow, round-off and, under-flow errors. This lesson is a very light introduction to number systems and their relationship to Computer Science.

A
Introduction To Number Systems
B
Review Decimal
C
Octal
D
Hexadecimal
E
Binary
F
Short Cuts Between Binary, Octal, And Hexadecimal
G
How This Relates To Computers And Overflow Errors
Y
Summary
Lesson Vocab
BINARY

A number base with only two digits.

DECIMAL

A number base with ten digits.

HEXADECIMAL

A number base with sixteen digits.

OCTAL

A number base with eight digits.

OVER-FLOW ERROR

When a value is placed into a data type without enough bits to handle the value's size.

ROUND-OFF ERROR

An error which affects the precision of decimal numbers.

UNDER-FLOW ERROR

When a value is placed into a data type that cannot handle numbers as small as the value.