Number system assessment
This is a quick assessment for the number system section. Please include your school email so that you can get a copy of the assessment with your response.
Email address *
Select the correct description for colour depth *
1 point
A sample is a measure of amplitude at a point in time.
0 points
Sound will originally start in this form and then it will be converted to digital i.e. binary for storage. What form is this?
0 points
What is the result of 11111111 + 00000000? *
1 point
A bitmapped image with a colour depth of one can represent images that use two colours. How many more colours can be represented in an image if the colour depth is increased from one to four?
0 points
What is the result of 1111 + 0011? *
1 point
If the letter A is 65 in ASCII, what is the letter F? *
1 point
What is the result of 11111111 + 00001111? *
1 point
Select the correct formula for calculating the file size of the image *
1 point
List two advantages of Unicode over ASCII *
1 point
Select the smallest and largest quantity of data. *
1 point
Required
Having a higher number of pixels as well as colour higher colour depth will result in a bigger file size *
1 point
How many bits per pixel would need to be used if the image shown in Figure 4 used 4 colours instead of 2? *
1 point
Captionless Image
Identify the correct prefixes for for values based on powers of 10 *
1 point
Required
How many code is ASCII made up of? *
1 point
What is the correct formula for calculating the sound file sizes based on the sampling rate and the sample resolution.
0 points
One way of representing sound digitally is to take samples of the original sound. Define sampling rate.
0 points
What is a pixel? *
1 point
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