You should be able to perform all of the necessary steps to complete these exercises without referring to your text. The project for each application will be developed from these Application Exercises. The lab final at the end of the semester will be drawn from the application projects. No, you do not need this feature for this course. The only deliverables for this course are the three application projects.
Computer viruses can cause significant damage.
Remember, however, that just installing antivirus software does not protect against viruses. Yes they do, but it may not be readily apparent. See below for how to start a scan. Here's an easy way to start a scan. Open My Computer and then right click on the drive you want to scan.