What about Text?

• To process textual information in a computer, e.g., with a word-processor, the characters need to be represented in binary form.
• The standard way to represent characters in binary form is called ASCII encoding.
• ASCII stands for American Standard Code for Information Interchange.
• In ASCII code, each character is represented by seven bits.
• Example: the character ``a'' is represented as ``110 0001'', the character ``!'' is represented as ``010 0001''.
• You will often see the more compact, hexadecimal representation instead:
  ``a'' is represented as ``61x'' (6x = 0110, 1x = 0001), or
  ``!'' is represented as ``21x'' (2x = 0010, 1x = 0001).