Representing Characters and Images

What language do computers use?

• English
• Binary
• UNICODE

The characters available on your computer

• Bit Depth
• Binary
• Data Set

Which of these is not an example of a Data Set?

• ASCII
• UNICODE
• BASIC

How many characters does ASCII include?

• 128
• 16 million
• 60

What is required for you to type commands into your computer?

• Data Set
• ASCII
• Binary

What are images made up of?

• Pixels
• Pixies
• Pictures

What is meant by the resolution of an image?

• The number of pixels in an image
• The number of bits in each pixel

What is meant by the bit depth of an image?

• The number of pixels in an image
• The number of bits in each pixel

The higher the bit depth - the 

• Larger the file size
• The more colours available
• Better the image quality
• All of the above

How many colours are available in a 4 bit image?

• 16
• 256
• 4