4.5.6.1 - 4.5.6.3 Bit Patterns, Analogue, Digital, ADC & DAC

What is a bit pattern?

• A sequence of bits (binary digits, 0s and 1s) that can represent different forms of data.

• A sequence of decimal digits that can represent different forms of data.

• A sequence of hexadecimal digits that can represent different forms of data.

• A sequence of characters that can represent different forms of data.

How is all data in a computer stored?

• In binary, meaning it consists of only two states (0 and 1).

• In decimal, meaning it consists of ten states (0 to 9).

• In hexadecimal, meaning it consists of sixteen states (0 to F).

• In characters, meaning it consists of various symbols.

What are the two states in which binary data is stored?

• 0 and 1

• 0 and 9

• A and B

• X and Y

What is a bitmap image made up of?

• Tiny squares called pixels

• Large squares called pixels

• Tiny circles called pixels

• Large circles called pixels

What does higher colour depth allow in an image?

• Fewer colours to be represented

• More colours to be represented

• No change in the number of colours

• Only black and white colours

How many colours can 8-bit colour represent?

• 2 colours

• 16 colours

• 256 colours

• 16 million colours

What is another name for 24-bit colour?

• Monochrome

• True colour

• Grayscale

• Indexed colour

What does the resolution of an image refer to?

• The number of colours in an image

• The number of pixels in an image

• The size of the image file

• The type of image format

How is the file size of an image calculated?

• By multiplying the number of pixels by the colour depth

• By adding the number of pixels to the colour depth

• By dividing the number of pixels by the colour depth

• By subtracting the number of pixels from the colour depth

What is the file size of a 100x100 image with 24-bit colour depth?

• 10,000 bytes

• 20,000 bytes

• 30,000 bytes

• 40,000 bytes