Data Representation Flashcards
1
Q
integers are
A
whole numbers
2
Q
computers can only work with
A
binary values (1s and 0s)
3
Q
real numbers are numbers with
A
a decimal point
4
Q
How does a computer store a real number
A
mantissa and exponent
5
Q
what is ASCII
A
the internationally agreed code used to represent characters
6
Q
Extended ASCII uses
A
8 bits
7
Q
Extended ASCII can
A
represent 256 characters
8
Q
how are vector graphics represented
A
shapes and attributes
9
Q
common vector shapes
A
rectangle
ellipse
line
polygon
10
Q
common vector attributes
A
co-ordinates
fill colour
line colour
11
Q
A bit mapped graphic is stored as
A
an array of pixels Each pixel’s colour is stored as a binary value
12
Q
The resolution of a bitmapped graphic is
A
its total number of pixels
13
Q
The bit depth of the image is
A
the number of bits used to store each colour
