TestOut PC Pro Certification Exam Questions and Answers

Operating System A set of program that acts as an interface between the applications that running on a computer and the computer and the computer's hardware -Receiving user input from input hardware devices such as the keyboard or mouse -Sending user output to output to hardware devices such as the monitor or a printer -Controlling the use of processing devices by applications -Serving as a platform for application -Moderating hardware -Providing security -Managing the file system Multiprocessing The ability to use multiple processing devices Multitasking The ability to run multiple applications simultaneously Cooperative Multitasking Multiple processes must work together for the operating system to work effectively Preemptive Multitasking Forces applications to share the CPU Multi threading The ability to run multiple parts of an application simultaneously parts of an Operating System Kernel The core of the OS that is loaded into memory when the system boots up. -Controlling security -Managing the file system -Providing a platform for applications to run on