Orensic Accounting and Fraud Examination Discussion

This assignment is for my online Forensic Accounting and Fraud Examination class which is a discussion forum. I have to write and describe the following questions in my own words. No text can be cited or copied from any original text or source. Everything has to be written in own words.
1. What is the difference between computer fraud and computer crime?

2. What is meant by demonstrative evidence? Give examples.

3. List and describe various types of computer viruses.

4. What methods are used by insiders to commit computer fraud? What red flags might indicate that insider computer fraud is occurring?