NP10_Chapter04 - Chapter 4 Operating Systems and File...

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Operating Systems Operating Systems and File Management and File Management Chapter 4 Chapter 4
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4 Chapter 4: Operating Systems and File Management 2 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
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4 SECTION A Chapter 4: Operating Systems and File Management 3 Operating System Basics Operating System Basics Operating System Activities User Interfaces The Boot Process
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4 Chapter 4: Operating Systems and File Management 4 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
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4 Chapter 4: Operating Systems and File Management 5 Operating System Activities
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4 Chapter 4: Operating Systems and File Management 6 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
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4 Chapter 4: Operating Systems and File Management 7 Operating System Activities Operating System Categories Single-user operating system Multiuser operating system Network operating system Desktop operating system
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4 Chapter 4: Operating Systems and File Management 8 User Interfaces The combination of hardware and software that helps people and computers communicate with each other
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4 Chapter 4: Operating Systems and File Management 9 User Interfaces Menus, submenus, and dialog boxes
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4 Chapter 4: Operating Systems and File Management 10 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
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4 Chapter 4: Operating Systems and File Management 11 The Boot Process
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4 SECTION B Chapter 4: Operating Systems and File Management 12 Today’s Operating Systems Today’s Operating Systems Microsoft Windows Mac OS UNIX and Linux DOS Handheld Operating Systems
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4 Chapter 4: Operating Systems and File Management 13 Microsoft Windows
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4 Chapter 4: Operating Systems and File Management 14 Mac OS You can tell when you’re using Mac OS by the Apple logo that appears on the menu bar. The Mac OS X interface includes all the standard elements of a GUI, including icons, menus, windows, and taskbars.
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4 Chapter 4: Operating Systems and File Management 15 Mac OS On a Macintosh computer with Boot Camp, you can boot into Mac OS X or into Windows XP.
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4 Chapter 4: Operating Systems and File Management 16 Mac OS Mac OS X on an Intel Mac offers the ability to run Windows and Windows application software in addition to software designed for the Macintosh Dual boot
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This note was uploaded on 04/08/2008 for the course CGS 1600 taught by Professor Abadallah during the Spring '08 term at University of Central Florida.

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NP10_Chapter04 - Chapter 4 Operating Systems and File...

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