logging in or signing up Operating Systems eduardoveliz Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 384 Category: Science & Tech.. License: All Rights Reserved Like it (1) Dislike it (0) Added: September 09, 2010 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Chapter 2Operating Systems : Chapter 2Operating Systems What Is an Operating System? : What Is an Operating System? An operating system is software that does the following: Provides a file system structure. Provides a means of communicating with computer system hardware. Prevents running programs from interfering with one another. Importance to the PC Technician : Importance to the PC Technician This chapter introduces the function and terminology of computer operating systems. Understanding how an operating system functions is essential to troubleshooting personal computers. Objectives : Objectives Identify various computer operating systems. Explain minimum requirements of an operating system. Describe the three core DOS files. Identify DOS limitations. Objectives : Objectives Explain the differences between the various versions of the Windows operating system. Describe the boot process. Describe the relationship of application software, operating systems, BIOS, and system hardware components. Describe the common characteristics of different operating systems. Presentation Outline : Presentation Outline Operating System Disk Operating System Microsoft Windows Operating Systems Non-Windows Operating Systems 1 2 3 4 OperatingSystem : OperatingSystem 1 Kernel : Kernel The kernel is the core of the operating system. Operating System Communication : Operating System Communication Application software Operating system software BIOS Computer hardware User Operating System Characteristics : Operating System Characteristics Ability to multitask. A user interface. A file structure. Click each link for details. Multitasking : Multitasking Multitasking is the process of supporting two or more programs running at the same time. It is supported by some operating systems. Program Program Program Program Cooperative Multitasking : Cooperative Multitasking With cooperative multitasking, one program dominates control of the operating system. A program will allow another program to run while it remains idle. Preemptive Multitasking : Program Program Program Program Preemptive Multitasking Preemptive multitasking allows two or more programs to share control of the operating system. Also called time slicing. Threading : Threading Running multiple threads at the same time via multiple CPUs. Program Thread User Interface : User Interface Text line command. Graphical user interface (GUI). Click each link for details. Text Line Command : Text Line Command A text line command is typed in at a command line. Graphical User Interface (GUI) : Graphical User Interface (GUI) Insert Figure 2-5 Folder Icon In a graphical user interface (GUI), a file system is easily displayed. File Structure : File Structure Subdirectory Directory Root directory Pathname File File Allocation Table (FAT) : File Allocation Table (FAT) A file allocation table is used in an operating system to keep track of file locations on a disk. Examples of file allocation tables are FAT12, FAT16, FAT32, VFAT, HPFS, and NTFS. Common OS Terminology : Common OS Terminology Configuration file. Application software. Drivers. Software patches. Click each link for details. Configuration File : Configuration File A configuration file is a file that contains information about the system hardware and file. Examples of configuration file information are the amount of system memory and type of video adapter used in the computer. Typical Configuration Files : Typical Configuration Files Application Software : Application Software Application software is also called end-user software. Designed for a specific purpose, such as creating a database, spreadsheet, or document. Relies on the OS to communicate with the computer. Drivers : Drivers Drivers are software that enable proper communication between the PC and peripherals. MS-DOS system driver files have a .sys extension. Windows drivers have a .drv extension. Windows stores many drivers in cabinet files. Software Patches : Software Patches Designed for the OS and application programs. Used to fix bugs. Review : Review Describe three functions of an operating system. Provides a file system structure. Provides a means of communicating with computer system hardware. Prevents running programs from interfering with one another. Review : Review The _____ is the core of an operating system. kernel Review : Review The _____ provides communication between application software and the BIOS. operating system Review : Review A(n) _____ is used in an OS to keep track of file locations on a disk. file allocation table Review : Review A software program that enables proper communication between the PC and peripherals is called a(n) _____. driver You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.