Data Storage - Paper 1

Question 1

Define most and least significant bit.

Answer 1

The most significant bit is the leftmost bit in a binary number.
Similarly, the least significant bit is rightmost one.

Question 2

Define character set

Question 3

Define bitmap image

Question 4

Define colour depth

Question 5

Define resolution

of an image

Answer 5

Resolution is a way of describing how packed the pixels of an image are.

Question 6

How can the file size of an image be estimated?

Question 7

List examples of image metadata.

Answer 7

• Height and width
• Colour depth
• Author

Question 8

Define sample rate

Question 9

Define bit depth

Question 10

Define bit rate

Answer 10

Bit rate is the number of bits processed per second.