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- 1. Multiple Choice(Fill in the blank to complete the sentence) Tiny squares called ..... are the building blocks of all digital images.elementssquarespixarspixels
- 2. Multiple Choice
The digital picture shown has been zoomed in and appears now to be very 'blocky'. What is the correct term for this?Poor resolutionDigitisationPixelationGranularity - 3. Multiple ChoiceColour depth is the term used to describe .....
N.B. The term 'bit' means a binary digit e.g. '1' or '0'how many colours have been used to make the picturehow many colours there in each pixelnone of thesethe number of bits used to indicate the colour of a single pixel - 4. Multiple ChoiceWhich one of the following answers best describe a limitation of this systemOnly a few colours can be displayedThe system could not be used for simple computer gamesOnly 1 colour can be displayedOnly 2 colors can be displayed
- 5. Multiple ChoiceHow many colours is the bottom picture showing given that it is using 4 bit colour depth?16 colours4 colours256 colours5 colours
- 6. Multiple ChoiceWhat will happen to the computer file size as the colour depth is increased?The file size will get smallerThere will be no change in file sizeThe file size will get biggerNone of these
- 7. Multiple ChoiceResolution meanshow fast can the file be senthow much detail in an image. higher resolution means more image detailexactlychange picture so it looks wrong
- 8. Multiple ChoiceColour depth meansthe difference in brightness between objects or regions
the relationship between picture width and its height.the overall lightness or darknessthe number of bits used for each colour of a single pixel. - 9. Multiple ChoiceWhen we have a 'one-bit' colour, which are the only two binary numbers that are possibilities?00 and 11000 and 1110 and 10000 and 1111
- 10. Multiple ChoiceHow many combinations are there for a '2 bit' colour?841632
- 11. Multiple ChoiceWhich 'bit' image would give the best picture quality?24482
- 12. Multiple ChoiceWhen you 'compress' a file, what happens?You squash your computer.The bitsize reduces and unnecessary information is removed.You put a flannel on your computer.The file size increases.
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