Which of the following is a way the operating system prevents unknown or unauthorized users from accessing the system? Protected mode
Software firewall
Device driver
User interface

So im doing this school challenge and the teachers said whats the average text a student gets a day so i need to get about 20 in a day but dont know how can you guys 2163371293

Aproject involves many computing systems working together on disjointed task towards a single goal what form of computing would the project be using

Create a file called favorite_foods, and list your favorite foods, entering five or six or more. press enter after each favorite food so it appears on its own line (make certain you also press enter after the final food item). after the file is created, add two more foods you like that are not on the list (press enter after the final food item). view the list of foods to make certain the two items you added appear at the end of the list