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1. Chapter 1
COMPUTER SYSTEMS
SERVICING

2. Perform Computer
Operations
How to Set-up Computer
Networks
How to Install and Configure
Computer Systems
How to Set-up Computer
Servers02
01
04
03
Maintain and Repair Computer
Systems and Network05
TOPICS

3. Perform
Computer
Operations01

4. Plan and prepare for task
to be undertaken
Access information using
computer
Input data into computer
Produce output data
using computer system
LEARNING OUTCOMES:

5. What is Computer?
Isaprogrammabledevicethatcanstore,
retrieve,andprocessdata.
Areelectronicdevicesthatacceptdata
(input),processthedata,andproduce
outputandstoreresults.

6. CHARACTERISCTICS OF COMPUTER
Characteristics Definition
SPEED
Ingeneral, no human being can complete to solving
the complex aomputation, faster than the computer.
ACCURACY
Since the computer is programmed, so whateverinput
we give it gives the result accurately.

7. CHARACTERISCTICS OF COMPUTER
Characteristics Definition
STORAGE
Computer can store massstorage of data with
appropriate format.
DILIGENCE
Computer can work for hours without any break and
creating error.

8. CHARACTERISCTICS OF COMPUTER
Characteristics Definition
VERSATILITY
We canuse computer to perform completely different
type of work at the same time.
POWER OF
REMEMBERING
It can remember data for us.

9. CHARACTERISCTICS OF COMPUTER
Characteristics Definition
NO IQ Computer does not work without instruction.
NO FEELING It can remember data for us.

10. TYPES OF COMPUTER
PERSONAL COMPUTER
Adigitalcomputerdesignedforuse
byonlyonepersonatatime.A
typical personal computer
assemblageconsistsofacentral
processingunit(CPU),which
containsthecomputer’sarithmetic,
logic,andcontrolcircuityonan
integratedcircuit.

11. TYPES OF COMPUTER
WORKSTATION
Apowerful,single-user
computer.Itislikepersonal
computer,butithasmore
powerfulmicroprocessor
and,ingeneral,ahigher
qualitymonitor.

12. TYPES OF COMPUTER
Minicomputer
Smallinsizethanthe
othercomputersof
thosetimes.Itisusedin
smallbusinessesand
firms.

13. TYPES OF COMPUTER
Mainframe
Apowerfulmulti-user
computercapableof
supporting many
hundredsofthousands
ofuserssimultaneously.

14. TYPES OF COMPUTER
Supercomputer
Anextremelyfast
computerthatcan
performhundredsof
millionsofinstructions
persecond.

15. COMPUTER
HARDWARE

16. COMPUTER HARDWARE
HARDWARE
Referstothephysicalelementsthatmakeup
acomputerthatisphysicallytangible.
Hardwareworkshandinhandwithfirmware
andsoftwaretomakeacomputerfunction.

17. TYPES OF COMPUTER HARDWARE
INPUT DEVICES
Componentsthatsenddatatothecomputer.
OUTPUT DEVICES
Peripheraldevicesthatreceivedatafromthe
computer.Itcanbeadisplay,projectionoranyother
medium.

18. INPUT DEVICES
KEYBOARD
Isaperipheraldevice
thatenablesauserto
inputtextintoa
computeroranyother
electronicmachinery.

19. INPUT DEVICES
MOUSE
ControlsacursorinaGUI
(graphicaluserinterface)and
canmoveandselecttext,
icons,filesandfolderson
yourcomputer.

20. OUTPUT DEVICES
MONITOR
Displaysvideoimagesandtext.
Itismadeupofcircuitry,a
screen,apowersupply,buttons
toadjustscreensettingsand
casingthatholdsallofthese
components.

21. OUTPUT DEVICES
PRINTER
Takestheelectronicdata
storedonacomputerorother
deviceandgeneratesahard
copyofit.

22. STORAGE DEVICES
PRIMARY STORAGE
Storesdatatemporarily.Volatilememory;whenthe
computeristurnedoff,allthedataandinformationwillbe
erased.
SECONDARY STORAGE
Storethedatauntilthedataisdeletedoroverridden.Stores
datapermanently.Nonvolatilememory;poweringoffthe
computerwillnotdeletethedatainit.

23. PRIMARY STORAGE
RAM (Random Access Memory)
Allowsinformationtobe
storedandretrievedona
computer.
Canbeaccessedrandomly.
Ifpowerislost,alldataislost.

24. SECONDARY STORAGE
HARD DISK/DRIVE
Storesandprovidesrelatively
quickaccesstolarge
amountsofdataonan
electromagneticallycharged
surface.

25. SECONDARY STORAGE
CD R (Compact Disc –Recordable)
Thediskcanbewrittentoonly
once.
Theyarecheapandworkbest
whenrecordingdatathatwillnot
changed.
Usuallyholds74-80minutes
(650-700mb)

26. SECONDARY STORAGE
CD RW (Compact Disc –Re Writable)
Canbewrittenanderased
roughly1000times.
Cantreattheopticaldiskjustlike
afloppyorharddisk,writingdata
ontoitmultipletimes.

27. SECONDARY STORAGE
DVD R (Digital Versatile Disc –Recordable)
Thediskcanbewrittentoonly
once.
Theyarecheapandworkbest
whenrecordingdatathatwillnot
changed.
Usuallyholds74-80minutes(650-
700mb)

28. SECONDARY STORAGE
FLASH DRIVE
Aresmallportablestorage
devicesforcomputerdata,
thattypicallyattachtoa
computerviaaUSB
(universalserialbus)
connection.

29. SECONDARY STORAGE
FLOPPY DISK
Aflexibleremovable
magneticdisk,typically
encasedinhardplastic,
usedforstoringdata.

30. INTERNAL COMPONENTS
INTERNAL COMPONENTS
Elementsthatdirectlyconnectwiththemain
functionalitiesofthecomputer.

31. INTERNAL COMPONENTS
CENTRAL PROCESSING UNIT (CPU)
Handles all the
instructionsitreceives
fromhardware and
softwarerunningonthe
computer.

32. PRIMARY STORAGE
RAM (Random Access Memory)
Allowsinformationtobe
storedandretrievedona
computer.
Canbeaccessedrandomly.
Ifpowerislost,alldataislost.

33. PRIMARY STORAGE
ROM (Read Only Memory)
Isastoragemediumthatis
usedwithcomputersand
otherelectronicdevices.

34. INTERNAL COMPONENTS
MOTHERBOARD
Aprintedcircuitboardand
foundationofacomputerthatis
thebiggestboardinacomputer
chassis.
Itallocatespowerandallows
communicationtoandbetween
theCPU,RAMandallother
computerhardwarecomponents.

35. ELEMENTS
OF A
COMPUTER
SOFTWARE

36. COMPUTER SOFTWARE
SOFTWARE
Isasetofinstructionsorprogramsinstructing
acomputertodoaspecifictasks.
Everythingthat“runs”onacomputer,froman
operatingsystem,toadiagnostictool,video
game,orappcanbedefinedassoftware.

37. TYPES OF SOFTWARE
SYSTEM SOFTWARE
Allowsoperating,controllingand
extendingtheprocessingcapability
ofacomputer.
This software is
necessarytorunhardwareand
applicationsoftware.
Theyaretheinterfacebetweenthehardwareand
theusers.Usually,computermanufacturersdevelopsystem
software.

38. TYPES OF SOFTWARE
APPLICATION SOFTWARE
Designedtoachievea
specificuserrequirement.
Someapplicationsoftware
areWord,Spreadsheet,
Database Management
Systems etc.

39. TYPES OF SOFTWARE
PRODUCTIVITY SOFTWARE
isapplicationsoftwareusedfor
producinginformation(suchas
documents, presentations,
worksheet,databases,charts,
graphs,digitalpaintings,
electronicmusicanddigital
video).

40. WORD PROCESSOR
WORD PROCESSOR
Awordprocessorissoftwareora
devicethatallowsuserstocreate,
edit,andprintdocuments.It
enablesyoutowritetext,storeit
electronically,displayitona
screen,modifyitbyentering
commandsandcharactersfrom
thekeyboardandprintit.

41. BASIC PART OF WORD WINDOW

42. BASIC PART OF WORD WINDOW
TileBar-displaysthedocumentname,followedbya
programname.
Menubar-containsalistofoptionstomanageand
customizedocuments.
Standardtoolbar-containsbuttonsthatareusedfor
formatting.
Ruler-usedtosetmargins,indents,andtabs

43. BASIC PART OF WORD WINDOW
Insertionpoint-locationwherethenextcharacter
appears.
End-of-documentmarker-indicatestheendofthe
document.
Help-providesquickaccesstoHelptopics.
Scrollbars-usedtoviewpartsofthedocument.

44. BASIC PART OF WORD WINDOW
Statusbar-displaysthepositionoftheinsertionpoint
andworkingmodebuttons.
Taskpane-provideseasyaccesstocommonlyused
menus,buttons,andtools.
Viewbuttons-changesthelayoutviewofthe
documenttoNormalview,WebLayoutview,Reading
Layoutview,PrintLayoutview,OutlineviewandFull
Screenview.
OfficeAssistant-linkstotheMicrosoftOfficeHelp
feature.

45. SPREADSHEET
SPREADSHEET
Isafilemadeofrowsandcolumns
thathelpsortdata,arrangedata
easily,andcalculatenumerical
data.Whatmakesaspreadsheet
softwareprogramuniqueisits
abilitytocalculatevaluesusing
mathematicalformulasandthedata
incells.

46. BASIC PART OF EXCEL WINDOW
TitleBar-displaysboththenameoftheapplication
andthenameofthespreadsheet.
MenuBar-displaysallofthemenusavailableforuse.
Thecontentsofanymenucanbedisplayedbyleft-
clickingthemenuname.
Toolbar-Somecommandsinthemenushave
picturesoriconsassociatedwiththem.

47. BASIC PART OF EXCEL WINDOW
Columnheadings-EachExcelspreadsheetcontains
256columns.Eachcolumnisnamedbyaletteror
combinationofletters.
Rowheadings-Excelspreadsheetcontains65,536
rows.Eachrowisnamedbyanumber.
Namebox-showstheaddressofthecurrentselection
oractivecell.

48. BASIC PART OF EXCEL WINDOW
FormulaBar-displaysinformationentered-orbeing
enteredasyoutype-inthecurrentoractivecell.The
contentsofacellcanalsobeeditedintheformulabar.
Cell-anintersectionofacolumnandrow.Eachcellhas
auniquecelladdress.
Navigationbuttons-allowyoutomovetoanother
worksheetinanExcelworkbook.Theyareusedto
displaythefirst,previous,next,andlastworksheetsinthe
workbook.

49. BASIC PART OF EXCEL WINDOW
Sheettabs-separateaworkbookintospecific
worksheets.Aworkbookdefaultstothreeworksheets.
Aworkbookmustcontainatleastoneworksheet.

50. SPREADSHEET
POWERPOINT
IsaMicrosoftpresentation
programthatcreatesaslide
showofimportantinformation,
chartsandimagestodisplay
duringapresentation.Itismost
oftenusedforbusinessand
schoolpresentations.

51. BASIC PART OF POWERPOINT WINDOW

52. BASIC PART OF POWERPOINT WINDOW
QuickAccess-thisbuttonispositionedatthetopleft
portion,thistoolbariscustomizable,youcanmovethis
intwopossiblelocations.
TitleBar-displaysthedocumentname
ControlToolbox-locatedrighttopoftheuser
interface,whereyoucanclose,restoreandmaximize
andminimizethewindowsprogram.

53. BASIC PART OF POWERPOINT WINDOW
TabMenu-positionedbelowofthetitlebar,this
relatestothetypeofactivity,suchasrelatearibbon
menuname,likeonceyouthehomeitwillopenasthe
homeribbonmenu.ThetabmenusareFILE,HOME,
INSERT,DESIGN,TRANSITIONS,ANIMATIONS,
SLIDESHOW,REVIEWandVIEW.
RibbonMenu-containsallthecommandsandother
menuitemsthatyoucanhelptofindthecommand
easilytofinishyourwork.

54. BASIC PART OF POWERPOINT WINDOW
RibbonMenu-containsallthecommandsandother
menuitemsthatyoucanhelptofindthecommand
easilytofinishyourwork
SlideSorter-displaysallslidesinasinglescreen.
SlideTemplate-thispartispositionedatthecenterof
yourinterface,thisisthebiggestpartwhereyoucan
startandputyourdesigninPresentation,animation,
effectsandmore.

55. BASIC PART OF POWERPOINT WINDOW
AnimationPane-thispanewilldisplaytheanimation
functionsyouuseinyourslidetemplate.
ZoominandOutSlidingbar-thisisusedtoenlarge
anddecreasetheviewofyourslidetemplateatthe
center.
Notespane-thispaneorpanelispositionedatthe
bottomofyouruserinterfacewhichyoucantypenotes
thatyoucanaccompanyaslide.

56. BASIC PART OF POWERPOINT WINDOW
StatusBar-showsthecurrentpagenumberand
position

57. ACCESS
INFORMATION
USING
COMPUTER

58. ACCESS INFORMATION USING COMPUTER
DESKTOP ICON
isasymbolwithtextunderitthat
isdisplayedonthedesktop.The
desktopiswhatisdisplayed
whenyouloginonmost
operatingsystems.Bydouble
clickingonaniconyoucanopen
thefolderorprogramrelatedtoit.

59. ACCESS INFORMATION USING COMPUTER
RECYCLE BIN
isalocationwheredeletedfilesor
foldersaretemporarilystoredin
everyversionofMicrosoft
WindowssinceWindows95.It
allowsuserstorecoverfilesthat
havebeendeletedinWindows.Itis
locatedonthedesktop.

60. ACCESS INFORMATION USING COMPUTER
WEB BROWSER
isanInternetbrowserthatallowsuserstoviewweb
pagesontheInternet.Userscanalsoutilizebrowser
tolistentoandwatchstreamingcontent,access
onlinebanking,makepurchasesovertheInternetand
much more.

61. ACCESS INFORMATION USING COMPUTER
FOLDER
Folder(alsocalledadirectory)is
aspaceusedtostorefiles,other
folders,andshortcutsona
computer.

62. ACCESS INFORMATION USING COMPUTER
MY COMPUTER
MyComputerisaMicrosoft
Windowsthatallowsyoutoexplore
andmanagethecontentsofyour
computerdrives.Althoughthe
namehaschangedtothenewer
versionsofWindowsto“ThisPC”,
itstillhasthesamefunctionalityas
“MyComputer”.

63. ACCESS INFORMATION USING COMPUTER
CONTROL PANEL
ControlPanelisasectionof
MicrosoftWindowsthat
enablesausertochange
variouscomputerhardware
andsoftwarefeatures.

64. KEYBOARDING
TECHNIQUES

65. KEYBOARDING TECHNIQUES
SOFTWARE
Keyboardingskillsareasetofskillsrequiredto
operateakeyboardsmoothlywhiletyping.This
includesunderstandingyourcomputerkeyboard
layoutanditsfunctions.
Itisaskillwhichisrequiredwheneveryouneedto
type.Makesuretokeepyourarmsathomerow,
masterthat,thenmoveon.

66. KEYBOARDING TECHNIQUES
KEYS 1

67. KEYBOARDING TECHNIQUES
KEYS 1
•EscKey(Escape)–exitorcanceloperations
•Tab–usedtoindentparagraphsormovefromone
textfieldtoanother
•CapsLock–makesallletterscapitaluntilyouturnit
off
•Shift-allowsyoutocapitalizeletterswhenpressed
downandallowsyoutoaccessthesecondaryfunction
ofyourcomputerkeys.

68. KEYBOARDING TECHNIQUES
KEYS 1
•Ctrl(Control)–amodifierkeythatperformsaspecial
operationwhenpressedinconjunctionwithanother
keyorkeys.
•WindowsKey–openandcloseyourwindowsstart
menu
•Alt(Alternate)–amodifierkeythatperformsa
specialoperationwhenpressedinconjunctionwith
anotherkeyorkeys.

69. KEYBOARDING TECHNIQUES
KEYS 1
•SpaceBar–addsoneblankspacebetweenobjects
•RightClickKey–allowsyoutoaccesscontextual
menuoptionsbasedonwhereyourmouseisonthe
screen.
•Enter–startsanewlineorbeginsaprocess.
•Backspace–erasestheobjecttotheleftofthe
cursor.

70. KEYBOARDING TECHNIQUES
KEYS 2

71. KEYBOARDING TECHNIQUES
KEYS 2
•Insert–allowsyoutoreplaceawordwithanotherby
writingoverit
•Home–movesyourcursortothefrontofyourlineof
text.
•PageUp/PageDown–scrollsthepageupordown.
•Delete–erasestheobjecttotherightofthecursor.
•End–movesyourcursortotheendofyourlineof
text.

72. KEYBOARDING TECHNIQUES
KEYS 2
•NumericKeypad–anumberpadtypicallyfoundonthefar
rightofakeyboard
•NumLock(Numberlock)–enablesanddisablesthe
numerickeypad.TurntheNumLockontouse
thenumbersonthekeypad,turnitofftousethekeysother
functions
•PrintScreen–copiesthecurrentscreentotheclipboardto
pasteorsendsthecurrentscreentotheprinter.

73. KEYBOARDING TECHNIQUES
KEYS 2
•ScrollLock–temporarilystopsthescrollingoftext.
UseismostlyrestrictedtoMicrosoftExcel
•Pause/Break–allowsausertopauseandun-pause
anactionsuchasacomputergameorscrolling
text

74. KEYBOARDING TECHNIQUES
F KEYS

75. KEYBOARDING TECHNIQUES
F KEYS
FKeysareknownasFunctionKeysandmayhavea
varietyofdifferentusesornouseatalldependingon
theOSandtheopenprogram.Theycanbecombined
withmodifierkeysaswell.

76. KEYBOARDING TECHNIQUES
F KEYS
•F1–almostalwaysopensahelpscreeninaprogram
•F2–allowsyoutorenameahighlightedfile,icon,or
folder
•F3–oftenopensupasearchfeature
•F4–openstheaddressbarinWindowsandInternet
Explorer.Closesthecurrentlyactiveprogram
whencombinedwiththeAltkey

77. KEYBOARDING TECHNIQUES
F KEYS
•F5–refreshesawebsiteorwebpage
•F6–movesthecursortotheaddressbarinmostweb
browsers
•F7–opensupspellcheckinMicrosoftOfficeprograms
•F8–enterstheWindowsstartupmenuwhencomputeris
bootingup
•F9–refreshesadocumentinWordandsendsemailin
Outlook

78. KEYBOARDING TECHNIQUES
F KEYS
•F10–activatesthemenubarinanopenprogram.Can
alsooperateastherightclickwhencombined
withtheShiftkey
•F11–activatesfullscreenmodeinallwebbrowsers
•F12–opensthesaveaswindowinMicrosoftOffice
programs.

79. KEYBOARDING TECHNIQUES
FINGER POSITION
•TheHomeKey-mostimportantsetofkeysonthekeyboard
Left hand’s fingers -A, S, D, F
Right hand’s fingers -J, K, L, ;
Thumbs –spacebar

80. KEYBOARDING TECHNIQUES
FINGER POSITION
•TOPROWKEYS-abovehomerowkeys
Left hand -Q, W, E, R, T
Right hand -Y, U, I, O, P

81. KEYBOARDING TECHNIQUES
FINGER POSITION
•TOPBOTTOMROWKEYS–belowhomerowkeys
Left hand -Z, X, C, V, B
Right Hand -N, M, ., /

82. KEYBOARD
SHORTCUTS

83. KEYBOARDING TECHNIQUES
KEYBOARD SHORTCUTS
Keyboardshortcutisoneormorekeysusedto
performamenufunctionorothercommonfunctionsin
aprogramoroperatingsystem.
Theyusuallyarenotasintuitiveaspoint-and-click
mouseactions.However,theycanbeusedbythe
noviceusersinfrequentlyusedprogramstogetto
locationsmuchfasterthanusingthemouse.

84. KEYBOARD SHORTCUTS
•Alt+Esc:Switchbetweenprogramsinorderthey
wereopened.
•Alt+Letter:Selectmenuitembyunderlinedletter.
•Ctrl+Esc:OpenStartmenu.
•Ctrl+F4:Closeactivedocument(doesnotworkwith
someapplications).
•Alt+F4:Quitactiveapplicationorclosecurrent
window.
•Alt+Spacebar:Openmenuforactiveprogram.

85. KEYBOARD SHORTCUTS
•Ctrl+LeftorRightArrow:Movecursorforwardor
backoneword.
•Ctrl+UporDownArrow:Movecursorforwardor
backoneparagraph.
•F1:OpenHelpmenuforactiveapplication.
•WindowsKey+M:Minimizeallwindows.
•Shift+F5Key:Movetoapreviousrevision.
•CtrlandA:Selectsallinthecurrentdocument.
•CtrlandB:Boldtext.
•CtrlandC:Copiestheitemortext.

86. KEYBOARD SHORTCUTS
•CtrlandD:DisplaystheFontdialoguebox.
•CtrlandE:Switchaparagraphbetweencenterand
leftalignment.
•CtrlandF:DisplaystheFinddialogboxtosearchthe
currentdocument.
•CtrlandG:DisplaystheGoTodialogboxtosearch
foraspecificlocationinthecurrentdocument.
•CtrlandH:DisplaystheReplacedialoguebox.
•CtrlandI:Italicizetext.

87. KEYBOARD SHORTCUTS
•CtrlandJ:Switchaparagraphbetweenjustifiedand
leftalignment.
•CtrlandK:Createahyperlink.
•CtrlandL:Leftalignaparagraph.
•CtrlandM:Indentaparagraphfromtheleft.
•CtrlandN:Createanewdocument.
•CtrlandO:Opensanewdocument.
•CtrlandP:Printsadocument.
•CtrlandR:Switchthealignmentofaparagraph
betweenleftandright.

88. KEYBOARD SHORTCUTS
•CtrlandS:Savesadocument.
•CtrlandU:Underlinestext.
•CtrlandV:Pastesthecopieditemortext.
•CtrlandX:Cutstheselecteditemortext.
•CtrlandY:Redothelastaction.
•CtrlandZ:Undothelastaction.
•CtrlandEnter:Insertapagebreak.
•CtrlandF2:SelectPrintPreviewcommand.
•CtrlandF4:Closestheactivewindow.
•CtrlandF6:Opensthenextwindowifmultipleare
open.

89. PRINTERS

90. PRINTER
PRINTER
•Aprinterisanexternalhardware
outputdevicethattakesthe
electronicdatastoredonacomputer
orotherdevicethatgeneratesa
hardcopyofit.Printersareoneof
themostpopularcomputer
peripheralandarecommonlyused
toprinttextandphotos.

91. TWO TYPES OF PRINTER
IMPACT PRINTERS
•Animpactprintermakescontactwith
thepaper.Itusuallyformstheprint
imagebypressinganinkedribbon
againstthepaperusingahammeror
pins.

92. EXAMPLE OF IMPACT PRINTERS
IMPACT PRINTERS
DOT-MATRIX PRINTER
DRUM PRINTER

93. TWO TYPES OF PRINTER
NON-IMPACT PRINTERS
•Non-impactprintersdonotusea
strikingdevicetoproducecharacters
onthepaper;andbecausethese
printersdonothammeragainstthe
papertheyaremuchquieter.

94. EXAMPLE OF NON -IMPACT PRINTERS
NON-IMPACT PRINTERS
LASERJET PRINTERINK JET PRINTER

95. EXAMPLE OF NON -IMPACT PRINTERS
NON-IMPACT PRINTERS
LASERJET PRINTERPLOTTER PRINTER

96. CREDITS: This presentation template was created by Slidesgo,
including icons by Flaticon, and infographics & images by
Freepik.
END OF
CHAPTER 1 LESSON 1
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