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Operating Systems and File Management

An operating system is a type of system software that acts as the master controller for all activities that take place within a computer system | Operating Systems and File Management Chapter 4 Chapter 4: Operating Systems and File Management Chapter Contents Section A: Operating System Basics Section B: Today’s Operating Systems Section C: File Basics Section D: File Management Section E: Backup Security Chapter 4: Operating Systems and File Management Operating System Basics Operating System Activities User Interfaces The Boot Process Chapter 4: Operating Systems and File Management Operating System Activities An operating system is a type of system software that acts as the master controller for all activities that take place within a computer system Figure 4-1 Chapter 4: Operating Systems and File Management Operating System Activities Figures 4-2 and 4-3 Chapter 4: Operating Systems and File Management Operating System Activities Multitasking provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously Within a single program, . | Operating Systems and File Management Chapter 4 Chapter 4: Operating Systems and File Management Chapter Contents Section A: Operating System Basics Section B: Today’s Operating Systems Section C: File Basics Section D: File Management Section E: Backup Security Chapter 4: Operating Systems and File Management Operating System Basics Operating System Activities User Interfaces The Boot Process Chapter 4: Operating Systems and File Management Operating System Activities An operating system is a type of system software that acts as the master controller for all activities that take place within a computer system Figure 4-1 Chapter 4: Operating Systems and File Management Operating System Activities Figures 4-2 and 4-3 Chapter 4: Operating Systems and File Management Operating System Activities Multitasking provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously Within a single program, multithreading allows multiple parts, or threads, to run simultaneously An operating system’s multiprocessing capability supports a division of labor among all the processing units Chapter 4: Operating Systems and File Management Operating System Activities Operating System Categories Single-user operating system Multiuser operating system Desktop operating system Chapter 4: Operating Systems and File Management User Interfaces The combination of hardware and software that helps people and computers communicate with each other Figures 4-7 and 4-8 Chapter 4: Operating Systems and File Management User Interfaces Menus, submenus, and dialog boxes Figures 4-10 and 4-11 Chapter 4: Operating Systems and File Management The Boot Process During the boot process, the operating system kernel is loaded into RAM The kernel provides essential operating system services Your computer’s small bootstrap program is built into special ROM circuitry housed in the computer’s system unit .