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 Driver A type of computer program that enables the operating system to interact with hardware devices Interface What allows the user to interact with the kernel and the utilities Command Line Interface Commands are executed through instructions written into a command line Graphical User Interface The user executes commands by clicking on graphic and symbols