Chapter 8 ObjectivesChapter 8Operating Systemsand UtilityProgramsDescribe the two typesof softwareIdentify various stand-aloneoperating systemsUnderstand the startup processfor a personal computerIdentify various networkoperating systemsDescribe the term user interfaceRecognize devices that useembedded operating systemsExplain features common tomost operating systemsKnow the difference betweenstand-alone operating systemsand network operating systemsDiscuss the purpose of thefollowing utilities: file viewer,file compression, diagnostic,uninstaller, disk scanner, diskdefragmenter, backup, andscreen saverNextp.8.2Operating SystemsWhat is an operating system (OS)?Operating SystemsWhat are the functions of an operating system? Set of programsthat coordinates allactivities .8.3 Fig. 8-1 startstart upup thethe computercomputer administeradminister securitysecurityNext controlcontrol aa networknetworkp.8.3 accessaccess thethe WebWebOperating Systems managemanage memorymemory monitormonitor performanceperformanceandand provideprovide housekeepinghousekeeping manage programs manage programsservicesservices provideprovide useruser interfaceinterface schedule schedule jobsjobs andandconfigureconfigure devicesdevicesOperating SystemsWhere is the operating system located?What is a cross-platform application? One that runs identically on multiple operatingsystemsoperating systemresides on ROMin handheldsNextp.8.3operating systemresides on harddisk in mostcasesruns onWindows 95,98, 2000,ME, and XPNextp.8.4 Fig. 8-21
Operating SystemFunctionsOperating SystemFunctionsWhat is booting?What messages display on the screen when you bootthe computer? Process of starting or restarting a computerBIOS version andcopyright noticetotal amount ofmemorycold bootProcess of turning on acomputer after it has beenpowered off completelywarm bootdevices detectedand testedProcess of restarting acomputer that is alreadypowered onWindowsmessagesound card andCD-ROM driversloadedNextNextp.8. 4p.8.4 Fig. 8-3How does apersonalcomputerboot up?1: Power supplysends signal tocomponents insystem unitOperating SystemFunctionsOperating SystemFunctionsStep 3: BIOSchecks componentssuch as mouse,keyboardconnectors, andexpansion cardsStep 1Step 2CD-ROM driveProcessorprocessorStep 3BIOSBIOS2: The processoraccesses BIOS tostart computerexpansion cardsNextNextp.8. 5 Fig. 8-4p.8. 5 Fig. 8-4Operating SystemFunctionsStep 4: Results ofPOST arecompared to datain the CMOS chipOperating SystemFunctionsStep 5: BIOS looksfor system files indrive A (floppy diskdrive) and thendrive C (hard disk)CD-ROM driveCMOSfloppy disk driveCD-ROM driveCMOSStep 4processorprocessorhard diskexpansion cardsNextp.8. 5 Fig. 8-4Step 5BIOSBIOSDrive thatcontainsoperatingsystem iscalled bootdriveexpansion cardsNextp.8. 5 Fig. 8-42
Operating SystemFunctionsStep 6: Bootprogram loadskernel of operatingsystem into RAMfrom boot driveStep 7: Operating system loadsconfiguration information anddisplays desktop on screenfloppy disk driveCD-ROM driveOperating system executesprograms in StartUp folderCMOSprocessor(RAM) memorymoduleshard diskBIOSOperating systemin memory takescontrol of computerOperating SystemFunctionsclick Start todisplay list ofapplications youcan runStep 6Step 7expansion cardsNextNextp.8. 5 Fig. 8-4p.8. 5 Fig. 8-4Operating SystemFunctionsOperating SystemFunctionsWhat is an emergency recovery disk?What is a user interface? Controls how you enter data and instructions andhow information displays on screencommand-line(DOS) interfaceRecoDi vesk r y Floppy disk that contains system files that will startcomputer when hard disk becomes damaged andcomputer cannot boot Also called repair disk, boot disk,or rescue diskNextNextp.8.6 Fig. 8-5p.8.7 Fig. 8-6graphical (Windows)interfaceOperating SystemFunctionsOperating SystemFunctionsWhat is multitasking? Allows single user to work on two or more applicationsthat reside in memory at same time Nextp.8.9 Fig. 8-8Foregroundcontains activeapplication - theone youcurrently areusingBackgroundcontains inactiveprograms thatare running butare not in useWhat are other program management features ofoperating multiusermultiprocessingOperating system enables twoor more users to run aprogram simultaneouslyOperating system can supporttwo or more processors runningprograms at same timefault-tolerant nslistedonontaskbartaskbarlistedContinues to operate even if one of itscomponents failsNextp.8.9Computer has duplicate componentssuch as processors, memory, anddisk drives3
Operating SystemFunctionsWhat is virtual memory (VM) management?What is memory management? Optimizes the use of random access memory(RAM)allocates, or assigns, dataand instructions to areaof memory while they arebeing processedmonitors contents ofmemoryclears items frommemory whenprocessor no longerrequires themNextOperating SystemFunctionsp.8.10 Operatingsystem allocatesportion of harddisk to functionlike RAM Paging Thrashingpage swappedswapped MRAM(physical(physicalmemory)memory)Nextp.8.10 Fig. 8-9page swapped inOperating SystemFunctionsHow does an operating system schedule jobs? Adjusts schedule based on job’s priorityWhat is spooling?Operating SystemFunctions Print jobs sent to buffer instead of directly to printer,where print jobs wait their turnprint spoolerapplicationprint jobprint queuejobreceivingdata from aninput deviceNextp.8.10An operation theprocessor managessendinginformation toan outputdevicetransferring itemsfrom storage tomemory and frommemory to storageprocessinginstructionsjobsto beprintedNextp.8.11 Fig. 8-10diskjobsbeingprintedserverOperating SystemFunctionsWhat is a device driver? Small program that tells operating system how tocommunicate with a device Each device requires itsown specific driverlaser printerOperating SystemFunctionsHow do you install a device driver?Use thePrinters andOtherHardware linkin ControlPanel ControlPanelPanelControldevice terslinklinkNextp.8.11Nextp.8.12 Fig. 8-114
Operating SystemFunctionsHow does an operating system monitorperformance? Provides a program, called performance monitor, thatassesses and reports information about various systemresourcesanddevicesNextOperating SystemFunctionsHow does an operating system manage files? Includes a program called file manager, such asWindows ExplorerCommandsinclude Copy,Rename, Delete,Move, Format, andNew Folder Nextp.8.14 Fig. 8-14p.8.14 Fig. 8-15Operating SystemFunctionsOperating SystemFunctionsWhat is a file allocation table (FAT)?What are features of a network operatingsystem? A table ofinformation thatoperating systemuses to locate fileson a disk Reformatting diskusually erases onlyfile allocation tableand leaves actualfiles on disk Server is computer that controls access to networkand provides centralized storage area Other computers on network are called clientsclientserverNextNextp.8. 15p.8.15 Fig. 8-16Operating SystemFunctionsOperating SystemFunctionsHow do operating systems administer security?What is Active Directory (AD)? Most multiuser operating systems allow each user to logonActive Directory (AD)Allows networkadministrators to manageall network informationincluding users, devices,settings, and connectionsfrom central environmentUser namePassword text boxNextp.8.16 Fig. 8-17Nextp.8. 165
Types of OperatingSystemsWhat are some characteristics of operatingsystems?device-dependentOne that runs only onspecific type ofcomputerproprietary softwarePrivately owned andlimited to specificvendor or computermodelNextdevice-independentRuns on manymanufacturers’computersTypes of OperatingSystemsWhat arethreecategories ofoperatingsystems?downward-compatibleRecognizes and workswith applicationsoftware written forearlier version ofoperating systemupward-compatibleWritten for earlier versionof operating system, butalso runs with new versionp.8.17Nextp.8.17 Fig. 8-18Stand-Alone OperatingSystemsStand-Alone OperatingSystemsWhat are features of most Windows operatingsystems?What is DOS (Disk Operating System)? Refers to several single user operating systemsdeveloped in the early 1980s for personalcomputersActiveDesktop Registry CheckerFAT32Taskbar/toolbarsWindowsExplorer has aWeb browserlook and feelIncreased speedTune-Up WizardUniversalSerial extp.8.17HardwaresupportStand-Alone OperatingSystemsNetwork OperatingSystemsWhat is Mac OS? Multiple displaysupportAccessibility SettingsWizardp.8.18 Multitasking operating system available only for computersmanufactured by AppleUpdate WizardWhat is UNIX? Command-line multitasking operating systemApple’s Macintoshoperating systemwas firstcommerciallysuccessful GUINextp.8.21 Fig. 8-22Nextp.8.23 Fig. 8-246
Network OperatingSystemsNetwork OperatingSystemsWhat is Linux?What is Solaris? Popular, free, open-source multitaskingUNIX-type operating system UNIX-type operating systemdesigned specifically fore-commerce applications Can manage high-traffic accounts Incorporates security necessary forWeb transactions Developed by Sun MicrosystemsOpen-sourcesoftware meanscode is available tothe publicNextNextp.8.24 Fig. 8-25p.8.25Embedded OperatingSystemsUtility ProgramsWhat is an embedded operating system?What is a utility program? Operatingsystem foundon mosthandheldcomputers andsmall devices Resides on aROM chip System software that performs a specific task Examples include:PocketPC 2002––––––––Palm OS NextNextp.8. 25file 1 beforedefragmentingfile 1 afterdefragmentingresults ofdefragmenting adiskp.8.27Windows CESummary of OperatingSystems and UtilityProgramsUtility ProgramsWhat is a screen saver? Causes monitor's screento display a movingimage or blank screen ifthere is no activity for aspecified time period Prevents ghosting Popular for security,business, orentertainment purposesFile viewerFile compressionDiagnostic utilityUninstallerDisk scannerDisk defragmenterBackup utilityScreen saver System softwareOperating systemsOperating system functionsTypes of operating systemsStand-alone operating systemsNetwork operating systemsEmbedded operating systemsUtility programsChapter 8 CompleteNextp.8.31 Fig. 8-357
Operating Systems and Utility Programs Describe the two types of software Understand the startup process for a personal computer Describe the term user interface Explain features common to most operating systems Know the difference between stand-alone operating systems and network operating systems Identify various stand-alone operating systems
Part One: Heir of Ash Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 Chapter 24 Chapter 25 Chapter 26 Chapter 27 Chapter 28 Chapter 29 Chapter 30 .
DEDICATION PART ONE Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 PART TWO Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 .
About the husband’s secret. Dedication Epigraph Pandora Monday Chapter One Chapter Two Chapter Three Chapter Four Chapter Five Tuesday Chapter Six Chapter Seven. Chapter Eight Chapter Nine Chapter Ten Chapter Eleven Chapter Twelve Chapter Thirteen Chapter Fourteen Chapter Fifteen Chapter Sixteen Chapter Seventeen Chapter Eighteen
18.4 35 18.5 35 I Solutions to Applying the Concepts Questions II Answers to End-of-chapter Conceptual Questions Chapter 1 37 Chapter 2 38 Chapter 3 39 Chapter 4 40 Chapter 5 43 Chapter 6 45 Chapter 7 46 Chapter 8 47 Chapter 9 50 Chapter 10 52 Chapter 11 55 Chapter 12 56 Chapter 13 57 Chapter 14 61 Chapter 15 62 Chapter 16 63 Chapter 17 65 .
HUNTER. Special thanks to Kate Cary. Contents Cover Title Page Prologue Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter
Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 . Within was a room as familiar to her as her home back in Oparium. A large desk was situated i
The Hunger Games Book 2 Suzanne Collins Table of Contents PART 1 – THE SPARK Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8. Chapter 9 PART 2 – THE QUELL Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapt
Mary Barton A Tale of Manchester Life by Elizabeth Cleghorn Gaskell Styled byLimpidSoft. Contents PREFACE1 CHAPTER I6 CHAPTER II32 CHAPTER III51 CHAPTER IV77 CHAPTER V109 CHAPTER VI166 CHAPTER VII218 i. CHAPTER VIII243 CHAPTER IX291 CHAPTER X341 CHAPTER XI381 CHAPTER XII423 CHAPTER XIII450 CHAPTER XIV479 CHAPTER XV513 CHAPTER XVI551
May 15, 2008 · CHAPTER THREE CHAPTER FOUR CHAPTER FIVE CHAPTER SIX CHAPTER SEVEN CHAPTER EIGHT CHAPTER NINE CHAPTER TEN CHAPTER ELEVEN . It is suggested that there is a one-word key to the answer among the four lofty qualities which are cited on every man's commission. . CHAPTER TWO. CHAPTER THREE.
Grade (9-1) _ 58 (Total for question 1 is 4 marks) 2. Write ̇8̇ as a fraction in its simplest form. . 90. 15 blank Find the fraction, in its
Book II Chapter I Chapter II Chapter III Chapter IV Chapter V Chapter VI Chapter VII Chapter VIII Chapter IX Chapter X Chapter XI Chapter XII Chapter XIII Chapter XIV Book III . The Storm and Stress period in German literature had been succeeded by the Romantic movement, but Goethe's classicism rendered him unsympathetic to it. Nevertheless .
preface 8 acts of th,.e three nephites 136 chapter 1. 136 chapter 2 138 the testimony of three witnesses 12 the testimonies of eight witnesses 13 chapter 3 141 chapter 4 146 chapter 5 147 chapter 6 150 chapter 7 . chapter 8 157 chapter 9 160 chapter 10 164 chapter 11. 166 words of moroni. 15 the sealed book of moses 29 chapter 1. 29 chapter 2 30
THE SKILLFUL HUNTSMAN chapter 01 HUNTSMAN chapter 02 TRAVELS chapter 03 TRANSPORTS chapter 04 FOREST chapter 05 AIR GUN chapter 06 GIANTS chapter 07 CASTLE chapter 08 GUARD DOG chapter 09 PRINCESS chapter 10 KING chapter 11 CAPTAIN chapter 12 COOK HUT contact information dedication This bo
Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 . Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 . THE ENDING OF TIME CHAPTER 1 1ST APRIL 1980 CONVERSATION WITH PROF. . it is a constant battle. DB: Yes. Can we go into that: why is it a constant battle? It is not a b
OBJECTIVES At the end of this session you should be able to: 1. State the reasons for writing objectives for your research project. 2. Define and describe the difference between general and specific objectives. 3. Define the characteristics of research objectives. 4. Prepare research objectives in an appropriate format for the project you are developing. 5.
Contents Dedication Allegiances Maps Prologue Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11
Chapter 4 Inter-VLAN Routing 97 Chapter 5 STP Concepts 137 Chapter 6 EtherChannel 175 Chapter 7 DHCPv4 199 Chapter 8 SLAAC and DHCPv6 223 Chapter 9 FHRP Concepts 261 Chapter 10 LAN Security Concepts 275 Chapter 11 Switch Security Configuration 313 Chapter 12 WLAN Concepts 347 Chapter 13 WLAN Configuration 397 Chapter 14 Routing Concepts 445
CONTENTS Chapter 1 INEQUALITIES Chapter 2 ABSOLUTE VALUE Chapter 3 LINES Chapter 4 CIRCLES Chapter 5 FUNCTIONS AND THEIR GRAPHS Chapter 6 LIMITS Chapter 7 CONTINUITY Chapter 8 THE DERIVATIVE Chapter 9 THE CHAIN RULE Chapter 10 TRIGONOMETRIC FUNCTIONS AND THEIR DERIVATIVES Chapter 1
Chapter 13 Anxiety and Stress-Related Illness Chapter 14 Schizophrenia Chapter 15 Mood Disorders Chapter 16 Personality Disorders Chapter 17 Substance Abuse Chapter 18 Eating Disorders Chapter 19 Somatoform Disorders Chapter 20 Child and Adolescent Disorders Chapter 21 Cognitive Disorders 10458-13_UT4-CH13.qxd 7/12/07 11:18 AM Page 239
v Brief Contents Chapter 1 Hospitality Spirit 1 Chapter 2 Tourism 26 Chapter 3 Lodging 53 Chapter 4 Lodging Operations 72 Chapter 5 Cruising 96 Chapter 6 Restaurants 113 Chapter 7 Restaurant Operations 129 Chapter 8 Managed Services 149 Chapter 9 Beverages 170 Chapter 10 Clubs194 Chapter 11 Theme Pa