What's the difference between a raster image and an ASCII representation of a text document?
What are filename extensions? What are they used for?
What is lossless representation? What is lossy representation? What are the trade-offs in using each representation?
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?
What is free and open source software? Provide an example.
Free Response:
How has retouching become a controversial issue? Give an example.
Would you rather own a camera (or camera phone) with a higher number of megapixels or lower? Explain.
Other than digital images, what might be an example of a computer model? Explain your answer based on the definition of a model.
The code that implements App Inventor is open source and its impact on education is obvious. Find another example of open source software and describe its positive impact on education, business or society.