M1L6 7th Grade

Computers store all data in binary form.

• True
• False

Decimal numbers are stored in computer memory as bits.

• True
• False

ASCII stands for American Standard Code for Information Interchange.

• True
• False

Which of the following is a limitation of ASCII?

• It uses binary numbers

• It was created in 1991

• It supports multiple languages

• It supports only 256 characters

What is the ASCII decimal value of the letter ‘A’?

• 67

• 66

• 65

• 64

In ASCII, the binary representation of the letter ‘C’ is:

• 01000100

• 01000011

• 01000010

• 01000001

How many bytes per character does Unicode use?

• 1 byte only

• 2–4 bytes

• 5 bytes

• 8 bytes

Which statements about digital data are correct? (Choose two)

• It can be processed directly by humans

• It uses only 0s and 1s

• It only works for numbers, not text

• It stores both text and numbers in binary

Which are examples of ASCII codes? (Choose two)

• 'A' = 65

• 'B' = 01000001

• 'C' = 67

• 'D' = 01001111

Which of the following describe Unicode? (Choose two)

• Introduced in 1991

• Uses exactly 1 byte per character

• Replaces ASCII completely

• Supports over 110,000 characters