GCSE Computer Science: ASCII and Unicode

ASCII is an encoding system for text. What does ASCII stand for?

• American Standard Code for Information Interchange

• All System Code In Internet

• American Simple Code for Interesting Information

• Alpha Super Code Input Information

How many bits was used to encode the original ASCII character set?

• 7

• 8

• 16

• 4

What type of data is stored in the first 32 ASCII codes?

• Control codes

• Letters A-Z

• Numbers

• Punctuation symbols

The Extended ASCII system uses 8 bits per character instead of 7 bits. How many different characters can be represented in 8 bits?

• 1024

• 8

• 128

• 256

If 01000001 (65) is the ASCII code for the letter 'A' what is the binary code for 'E'?

• 01000011

• 01000101

• 01000110

• 01000111

How many characters are currently represented (in 2017) by the Unicode system?

• 21,977

• 1,250,569

• 75,004

• 136,690

How many bits are used in ASCII?

• 16

• 1

• 7

• 8

The ASCII code is represented using 16 bits.

• TRUE

• FALSE

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

• TRUE

• FALSE

Upper and Lower case letters have a different ASCII code.

• TRUE

• FALSE