Data Representation

The following is a correct order of units of storage from lowest to highest:

• a bit, a nibble, a byte, a kilobyte, a megabyte, a gigabyte, a terabyte
• a bit, a byte, a nibble, a kilobyte, a megabyte, a gigabyte, a terabyte
• a bit, a nibble, a byte, a megabyte, a kilobyte, a gigabyte, a terabyte
• a byte, a bit, a nibble, a megabyte, a kilobyte, a gigabyte, a terabyte

Quality of an image depends on:

• Resolution
• Metadata
• Screen size
• Computer's speed

Colour depth refers to:

• How many bits are used in a file to store colour information in every pixel
• Resolution divided by the number of colours in an image.
• Degree of file compression applied to an image file.
• Repeated resampling of an image.

The smallest unit of data stored in an image file is called:

• Pixels
• Resolution
• Alpha
• Bitmap.

A vector image is created using

• coloured pixels.

• dots.

• images.

• mathematics formulas.

Bitmap graphics are made up of

• dots.

• images.

• mathematics formulas.

• coloured pixels.

The resolution of an image refers to the quality of the image.

• TRUE

• FALSE

A character set is...

• What language can be used in a computer system.
• The fonts that a computer has installed.
• The possible characters that can be represented by a computer system.

The (standard) ASCII code is capable of representing non-European languages.

• True
• False

What is the maximum number of values that can be represented in 8 bits?

• 255
• 256
• 65,536
• 128