Character Sets and Images

What is binary data used to represent in a computer?

• Images and text

• Sound only

• Games only

• Videos only

What does a closed switch in a computer represent?

• Three

• One

• Two

• Zero

Which character set uses 7 bits to represent each character?

• Unicode

• ASCII

• Extended ASCII

• UTF-8

How many different characters can ASCII represent?

• 256

• 1024

• 128

• 65

What is the decimal code for the letter 'A' in the ASCII character set?

• 64

• 65

• 66

• 67

Which Unicode character set can use between 8 and 32 bits?

• ASCII

• UTF-8

• UTF-16

• UTF-32

How many different characters can Unicode represent?

• 128

• Over 2 million

• 256

• Over 1 million

What is the simplest form of image representation in computers?

• Vector graphics

• Bitmap

• JPEG

• PNG

How many colors can be stored with 8-bit color depth?

• 65,536

• 16 million

• 128

• 256

What does 24-bit color depth allow?

• 2 colors

• 16 million colors

• 65,536 colors

• 256 colors