Colour images
Authored by Gyorgy Denes
Computers
8th Grade
Used 145+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do we use to represent images in computers?
A canvas
A paintbrush
A bitmap
An analogue image
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What word is "picture element" often shortened to?
piel
piskel
pixel
pictel
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many bits do we need for each pixel of a black-and-white image?
0
1
2
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where is the first pixel of an image
In the middle
bottom-left corner
top-left corner
top-right corner
bottom-right corner
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The pixel co-ordinates (1,1) refer....
to the dead centre of the bitmap
the top-left corner
to the pixel that is 1-right and 1-down from the top-left corner
to a question that nobody knows the answer to.
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
The real world is analogue, whereas data represented by a computer is d (a) .
(fine with or without the initial letter)
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which three colours are used by computers as primary colours?
red
yellow
cyan
blue
green
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