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DFC2063 TOPIC 1: INTRODUCTION TO OPERATING SYSTEM a. Do your know the meaning of Operating system? ~ is a software program that provides an interface between the user and the computer and manages thousand of application. b. How does OS works? ~ Even thoug it is stored on disc , it needs to be loaded into memory  (RAM) once the computer is switched on and before any other program can be run. c. Providing a user interface ? ~ users interact with application programs and computer hardware through a user interface - window like graphical d. Running applications  ~load and run applications such as word processors and spreadsheet e.Support for built-in utility programs ~ uses utility programs for maintenance and repairs . Help to identify problems , locate lost files , repair damaged files and backup data. f. Control the computer hardware  ~OS located between programs and the BIOS. BIOS controls the hardware . All programs that need har...