WJEC GCSE Computer Science 4.3 Representation of Characters

True or False: In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s).

• True
• False

True or False: The binary number for a capital 'A' is the same as the binary number for a lower-case 'a'?

• True
• False

What is the ASCII code for ... A?

• 65
• 56
• 97
• 79

What is the ASCII code for ... I?

• 73
• 37
• 105
• 150

What is the following word ... 67 65 84

• CAT
• COT
• CAR
• BAT

What does ASCII stand for

• American Scheme for Colours In the Internet

• Any Set of Characters In the Internet

• All Set Characters In Information

• American Standard Code for Information Interchange

How is Unicode similar to ASCII

• They both represent letter characters

• They both use 8 bits

• They both have Chinese characters

• They were both invented by British scientists

Unicode can represent emojis

• True

• False

ASCII can represent an emoji

• True

• False

How would you write the number two in binary?

• 1001

• 0001

• 0000

• 0010