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GSU CSC 1010 - Chapter08

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Chapter 8 Operating Systems and Utility ProgramsChapter 8 ObjectivesSystem SoftwareOperating SystemsSlide 5Operating System FunctionsSlide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Operating System Utility ProgramsSlide 22Types of Operating SystemsSlide 24Stand-Alone Operating SystemsSlide 26Slide 27Slide 28Network Operating SystemsEmbedded Operating SystemsSlide 31Slide 32Slide 33Slide 34Slide 35Slide 36Slide 37Slide 38Slide 39Slide 40Slide 41Slide 42Stand-Alone Utility ProgramsSlide 44Slide 45Slide 46Slide 47Slide 48Slide 49Slide 50Summary of Operating Systems and Utility ProgramsChapter 8 Operating Systems and Utility ProgramsChapter 8 ObjectivesIdentify the types of system softwareIdentify the types of system softwareSummarize the startup processon a personal computerSummarize the startup processon a personal computerDiscuss ways that some operating systems help administrators control a network and administer securityDiscuss ways that some operating systems help administrators control a network and administer securityExplain the purpose of the utilities included with most operating systemsExplain the purpose of the utilities included with most operating systemsSummarize the features of several stand-alone operating systemsSummarize the features of several stand-alone operating systemsIdentify various network operating systemsIdentify various network operating systemsIdentify devices that use several embedded operating systemsIdentify devices that use several embedded operating systemsExplain the purpose of several stand-alone utility programsExplain the purpose of several stand-alone utility programsNextDescribe the functions of an operating systemDescribe the functions of an operating systemSystem SoftwareWhat is system software?Nextp. 398 - 399Operating system (OS)Operating system (OS) (sometimes called the platform) (sometimes called the platform) coordinates all activities coordinates all activities among computer among computer hardware hardware resourcesresourcesPrograms that control Programs that control or maintain operation or maintain operation of computerof computerTwo types are Two types are operating systems operating systems and utility programsand utility programsOperating SystemsWhat are the functions of an operating system?Nextp. 398 - 399 Fig. 8-1Operating SystemsWhat is a cross-platform application?Nextp. 399Operating System/Platform AOperating System/Platform BOperating System/Platform COperating System/Platform DApplicationRuns the same on multiple operating systemsOperating System FunctionsWhat is booting?Nextp. 400 Fig. 8-2Cold boot Turning on computer that has been powered offWarm boot Restarting computer that is powered onKernel : Memory ResidentProcess of starting or restarting a computerOperating System FunctionsHow does a personal computer boot up?Nextp. 400 - 401 Fig. 8-3Step 1. Power supply sends signal to com-ponents in system unitStep 4. Results of POST are compared with data in CMOS chipStep 2. Processor accesses BIOS to start computerStep 3. BIOS runs tests, called the POST, to check components such as mouse, keyboard, and adapter cardsStep 5. BIOS looks for system files on a USB flash drive or CD/DVD drive, and then drive C (hard disk)Step 6. Kernel (core) of operating system loads into RAMStep 7. Operating system loads configuration information and displays desktop on screenClick to view Web Link, click Chapter 8, Click Web Link from left navigation, then click Windows Registrybelow Chapter 8Operating System FunctionsWhat is a boot disk?Nextp. 402Contains system files that will start computer when computer cannot bootAlso called recovery diskOperating System FunctionsWhat is a user interface?Nextp. 402 Fig. 8-4Controls how you enter data and instructions and how information displays on screenOperating System FunctionsWhat is a graphical user interface (GUI)?Nextp. 403 Fig. 8-5a and 8-5bUser interacts with menus and visual images such as buttons and other graphical objectsBasic InterfaceWindows Aero InterfaceOperating System FunctionsWhat is a Command Line Interface?Nextp. 402 Fig. 8-4A command-line interface (CLI) is a mechanism for interacting with a computer operating system or software by typing commands to perform specific tasks.Foreground contains program you are usingBackground contains programs that are running but are not in useOperating System FunctionsWhat is single user/ multitasking?Nextp. 403 - 404 Fig. 8-6Working on two or more programs that reside in memory at same timeHas duplicate components such as processors, memory, and disk drivesEnables two or more users to run programs simultaneouslyContinues to operate when one of its components failsOperating System FunctionsWhat are other program management features of operating systems?Nextp. 405Can support two or more processors running programs at same timefault-tolerant computerfault-tolerant computermultiusermultiusermultiprocessingmultiprocessingPreemptive MultitaskingOperating System FunctionsWhat is memory management?Nextp. 405 - 406 Fig. 8-8Optimizing use of random access memory (RAM)With virtual memory (VM), portion of hard disk is allocated to function as RAMSwap FilePaging ThrashingOperating System FunctionsHow does an operating system schedule jobs?Nextp. 407 Transferring items Transferring items between storage between storage and memoryand memorySending Sending information information to output deviceto output deviceProcessing Processing instructionsinstructionsReceiving data Receiving data from input devicefrom input deviceAdjusts schedule based on job’s priorityA job is an operation A job is an operation the processor managesthe processor managesOperating System FunctionsWhat is spooling?Nextp. 407 Fig. 8-9Sending print jobs to buffer instead of directly to printerPrint jobs line up in queueOperating System FunctionsWhat is a device driver?Nextp. 407Device Device DriverDriverProgram that Program that tells operating system tells operating system how to communicate how to communicate with devicewith deviceWith With Plug and PlayPlug and Play, , operating system operating system automatically configures automatically configures new devices as you new devices as you install theminstall them Also called Also called driverdriverClick to view Web Link, click Chapter 8, Click Web Link from left navigation, then click Plug and Play below


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