WorksheetsData representation
Total questions: 21
Worksheet time: 19mins
Which is the smallest form of data?
Bit
Byte
Nibble
8 Binary Digits
Convert 129 to binary
10000001
01111110
01000000
11001100
How many bits per pixel do you need to make 4 colours?
colour depth of 1
colour depth of 2
colour depth of 3
colour depth of 4
Bitmap Colour Depth is
the colour of each pixel.
the density of pixels in an image.
information stored in an image to help recreate the image.
the number of bits used for each pixel.
What is the file size in bits, of a 10x10dpi bitmap image with a colour depth of 4 bits?
4000 bits
1000 bits
1600 bits
400 bits
Increasing Colour Depth and Resolution
increases the File size
decreases the File size
increases memory
decreases sound
How would decreasing the DPI of an image affect the image quality?
It would make it more colourful
It would make it more detailed
It would make it less colourful
It would make it less detailed
How many bits was used to encode the original ASCII character set?
7
8
16
4
How is Unicode different from ASCII
Unicode represents fewer characters
Unicode represents more characters
Unicode isn't for letters
Unicode doesn't have numbers
A sound clip uses a sample rate of 4000Hz, an 8 bit sample resolution, and is 10 seconds long. What is the file size in bits?
4,000
32,000
40,000
320,000
