CS Principles
This activity addresses the idea that computing has
global impacts. It focuses, in part, on the following learning
objective:
- 28: The student can analyze how computing affects communication, interaction, and cognition.
- 29: The student can connect computing with innovations in other fields
- 29: The student can analyze the beneficial and harmful effects of computing.
- 30: The student can connect computing within economic, social, and cultural contexts.
Reading Assignment
Read Chapter 3
of
Blown to Bits (25 pages). This chapter talks about hidden
information in and associated with documents and the various mishaps
that can happen if one is unaware of such information.
Reading Questions
Post answers to the following questions on a Portfolio page. We will
discuss these in class.
- What is metadata? Give an example.
- What is a model, as this term is used
in how images and sound recordings are digitized?
- What's the difference between a raster image
and an ASCII representation of a text document?
- What is steganography and what is it used for?
- What would you have to do to delete a document
from your computer so that it could not possibly be
read by anyone else?
Portfolio
Your answers to the above questions should be recorded on
a new portfolio page. Name it "Blown to Bits, Ch3" or something
similar.
