Representing Images (AQA GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What formula calculates bitmap file size in bits?
What formula calculates bitmap file size in bits?
How many bits are in 1 byte?
How many bits are in 1 byte?
8 bits
What formula converts file size from bits to bytes?
What formula converts file size from bits to bytes?
How many colours can 1-bit colour depth represent?
How many colours can 1-bit colour depth represent?
2 colours
How many colours can 8-bit colour depth represent?
How many colours can 8-bit colour depth represent?
256 colours
How many colours can 24-bit colour depth represent?
How many colours can 24-bit colour depth represent?
Over 16 million colours
With bits, how many colours can be represented?
With bits, how many colours can be represented?
colours
A 1000×800 image with 8-bit depth: file size in bits?
A 1000×800 image with 8-bit depth: file size in bits?
6,400,000 bits
What three components calculate bitmap file size?
What three components calculate bitmap file size?
Width, height, colour depth
What is a common mistake when calculating file size?
What is a common mistake when calculating file size?
Forgetting to divide by 8