Which type of operating system would be the best choice to control the braking system on a car ?

1. real-time processing
2. multi-processing
3. batch processing

Which type of operating system would be needed to allow the students in a class to read a file that the teacher also had open ?

1. batch processing
2. multi-user
3. multi-tasking

Which of the following is NOT a function of an operating system ?

1. Managing the computer's resources, such as the central processing unit, memory, disk drives, and printers.
2. Formatting a word document.
3. Establishing a user interface.
4. Executing and providing services for applications software.

An operating system manages

1. Memory
2. Processes
3. Disks and I/O Devices
4. All the above