4.5 Fundamentals of data representation Flashcards
1
Q
What 3 number sets can real numbers reside in?
A
Natural numbers
Rational numbers
Irrational numbers
2
Q
What is meant by the resolution of a bitmapped graphic image?
A
How many pixels wide it is
3
Q
What is meant by the colour depth of a bitmapped graphic image?
A
How many different colours can be represented.
4
Q
How do you calculate the file size of a bitmap image
A
Pixels wide * Pixels long * Colour depth
5
Q
Describe two advantages of using vector graphics instead of bitmaps to represent an image.
A
They can have an infinite resolution and are usually small in size.
6
Q
How does Two’s compliment work?
A
The leftmost bit has a negative value while the rest are positive.
