Multiple choice

A code that does not correspond to a valid character is known as

  1. Bar code

  2. Illegal character

  3. Mnemonic

  4. Gary code

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An illegal character is a bit pattern or code that is not recognized as a valid member of the character set being used (like ASCII or EBCDIC). Mnemonics are abbreviations for instructions, and Gray code is a binary numeral system.