Week 7
Coded Messages Using ASCII

- Table of Contents -

This week students apply their knowledge to learn how to encode/decode information like a computer using ASCII.

Teacher Notes - Time: 70 Minutes
  • Review how computers store numbers
  • Describe ASCII encoding and hand out ASCII table
  • Describe space (‘sp’), carriage return (‘\r’), new line (‘\n’)
  • Decode the following message


  • Have everyone encode their name

 Blackboard Note

How does a computer store numbers?
-binary

How does a computer store letters (characters)?
-ASCII codes (numbers)

-each letter has a code (a number from 0 to 127)
‘A’ is code 65, ‘e’ is code 101, ‘5’ is code 53

-my name is:

 Handout

- Table of Contents -
Copyright 1999-2001 Advanced Digitek Inc. All rights reserved.