PC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramHow to Use this Module................................................................................................................................................................1Introduction...............................................................................................Pre-Test.....................................................................................................Defnition of Terms...................................................................................Learning Outcome 1 Introduce the !om"uter #$stem............................. Information #heet 1.1T$"es of !om"uter............................................. #elf !hec% 1.1...................................................................................... Information #heet 1.& !om"uter !om"onents and its !haracteristics........................................................................................ 'cti(it$ #heet 1.& .................................................................... #elf !hec% 1.&...................................................................................... Information #heet 1.& Distinguishing Hardware and #oftware )elationshi"............................................................................ 'cti(it$ 1.*...........................................................................................Learning Outcome & Identif$ of com"uter "arts and its "eri"herals ............................................................................................ Information #heet &.1 Personal Protecti(e +,ui"ment........................ #elf !hec% &.1..................................................................................... Information #heet &.& Hand Tools....................................................... 'cti(it$ #heet &.&................................................................................. Information #heet &.*.......................................................................... 'cti(it$ #heet &.*................................................................................. #elf !hec% &.*......................................................................................Learning Outcome * Maintain !om"uter Hardware............................... Information #heet *.1 Maintain com"uter #$stem.............................i | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education Program Information #heet *.& !leaning -our !om"uter #$stem..................... 'cti(it$ #heet *.&................................................................................. Information #heet*.1 ........................................................................Post Test..................................................................................................'nswer .e$s............................................................................................ii | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education Program/elcometotheModuleIntroducing Computer System.Thismodule contains training materials and acti(ities for $ou to wor% on.The unit of com"etenc$ Introduce Computer Systemcontains%nowledge0 s%ills and attitudes re,uired for aComputer HardwareServicing NC II course.-ou are re,uired to go through a series of learning acti(ities in orderto com"lete each of the learning outcomes of the module. In each learningoutcomethereareInformationSheetsandActivitySheets. 1ollowthese acti(ities on $our own and answer the #elf-!hec% at the end of eachlearning acti(it$.If $ou ha(e ,uestions0 don2t hesitate to as% $our teacher forassistance.'fter com"leting this module as% $our teacher to assess $ourcom"etenc$. )esult of $our assessment will 3e recorded in $ourcom"etenc$"rofle. 'll thelearningacti(itiesaredesignedfor $outocom"lete at $our own "ace.Insidethismodule$ouwill fndtheacti(ities for $outocom"letefollowed 3$ rele(ant information sheets for each learning outcome. +achlearning outcome ma$ ha(e more than one learning acti(it$.iii | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramProgram4 !ourseComputer Hardware Servicing NC IIUnit of !om"etenc$Introduce Computer System Module TitleIntroducing Computer SystemINTRODCTION!This module contains information and suggested learning acti(itieson !om"uter Hardware #er(icing. It includes training materials andacti(ities for $ou to com"lete.!om"letion of this module will hel"$ou 3etter understandthesucceeding module on !om"uter Hardware #er(icing.This module consists of " learning outcomes. +ach learning outcomecontains learning acti(ities su""orted 3$ each instruction sheets. 5efore$ou "erform the instructions read the information sheets and answer theself-chec% and acti(ities "ro(ided to ascertain to $ourself and $our teacherthat $ouha(eac,uiredthe%nowledgenecessar$to"erformthes%ill"ortion of the "articular learning outcome. U"on com"letion of this module0 re"ort to $our teacher forassessment to chec% $our achie(ement of %nowledge and s%illsre,uirement of this module. If $ou "ass the assessment0 $ou will 3e gi(ena certifcate of com"letion.S##AR$ O% &'ARNIN( OTCO#'S!U"on com"letion of the module $ou should 3e a3le toLO1. introduce the com"uter s$stemLO&. identif$ the com"uter "arts and their "eri"heralsLO*. maintain com"uter s$stemiv | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education Program#u)tip)e*choice!1. /hat do $ou call the large screen in a la"to"6a7 !PU 37 Mother 3oardc7 8ideo !ardd7 L!D&. /hat t$"e of mother3oard design that is common in large P! networ% ser(ers and on other com"uters on which the "rocessor is u"graded fre,uentl$6a7 Mother3oard 37 !PU c7 5ac%"lanes d7 'T9*. It ser(es as the "ower su""l$ for $our la"to"6a7 'T 37Power #u""l$ c7 !MO#d7 5atter$:. It defnes a mother3oard2s si;e0 sha"e and how it is mounted to the case6a7 Mother3oard37 1orm factor c7 Ley ? located on the right side of the al"hanumeric%e$s0 this grou" of %e$s has two smaller grou"s of %e$s the cursorfunction %e$s and cursor arrow %e$s.%unction >eys* located across the to" of a %e$3oard.Numeric >eypad?the num3er "ad0 which is located on theeDtreme right side of nearl$ all modern %e$3oards0 contains %e$s forten num3ers0 as well as the four arithmetic functions. This can also3e used as a cursor control "ad 3$ toggling the FUM LO!. %e$.Specia) purpose >eys +#! %e$ Print #creen %e$ Pause43rea% %e$.indow >eys /indows %e$ '""lication4!onteDt %e$1eyeysNumeric>eypadPC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education Program1eyPlatters'rm The p)atters - These t$"icall$ s"in at *0>CC or ?0&CC r"m when the dri(e is o"erating. These "latters are manufactured to ama;ing tolerances and are mirror-smooth. The arm - This holds the read4write heads and is controlled 3$ the mechanism in the u""er-left corner. The %)oppy Dis>TheKoppydis>drive:%DD;wasthe"rimar$meansof addingdata to a com"uter until the !D-)OM dri(e 3ecame "o"ular. In fact0 1DDsha(e 3een a %e$ com"onent of most "ersonal com"uters for more than &C$ears. 5asicall$0 aOo""$dis%dri(ereads andwrites datatoasmall0circular "iece of metal-coated "lastic similar to audio cassette ta"e. In thisarticle0 $ou willlearn more a3out what is inside a Oo""$ dis% dri(e andhow it wor%s. -ou will also fnd out some cool facts a3out 1DDs. 49 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramOptica) drivesO"tical dri(es uses laser light or electromagnetic wa(es near the light s"ectrum as "art of the "rocess of reading or writing data to or from o"tical discs-orta p)ace Identif$ ha;ards and ris%s.#afet$ "olicies are eDecuted and carried out along with the tas%.1ollowingcertain"rocedureis(er$im"ortant to"erformagi(eno"erationore(olutionorinreactiontoagi(ene(ent. Theta3le3elowshows diBerent elements and their corres"onding "erformance criteria to3ea3letoidentif$occu"ational healthandsafet$ha;ards0 andassessris%0 aswell asfollowinstructionsand"rocedureinthewor%"lacewithminimal su"er(ision. Thestudentswill also3eca"a3leof"artici"atingand contri3uting to OH# management issues. 64 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramSA#-&' #AINT'NANC' -&AN!#ONTH&$ CO#-T'R #AINT'NANC' -&AN JN' J&$ A( S'-T OCT NOI D'C!leaning $our com"uterDis% s"ace utili;ation#can for (iruses!hec% for hardware and software issues-ersona) -rotective DeviceThere are tools and e,ui"ments used to "rotect the user and the com"uter s$stem.T$"es of "ersonal "rotecti(e de(ices+. 'nti-static de(ices 3. Power surge "rotectors". Personal e,ui"ments-ersona) ',uipment1. #mall "aint 3rush&. #crew dri(ers*. Pliers and twee;ers:. !om"ressed air=. Handheld (acuum65 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramSamp)e Hardware Inspection Chec>)istComputer no!LLLLLLLLLLLLLLLLLLLLComponent .or>ing Not .or>ingMonitor.e$3oardMouse#"ea%erPrinter8oltage regulatorSamp)e Software Inspection Chec>)istComputer no!LLLLLLLLLLLLLLLLLLLLSoftware .or>ing Not .or>ing'""licationsO"erating #$stem66 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramUser "rogramsIN%OR#ATION SH''T ".3C)eaning $our Computer SystemAppropriate c)eaning proceduresPro"er routine cleaning is the easiest0 least eD"ensi(e wa$ to "rotect and to eDtend the life of a la"to". It is (er$ im"ortant to use the right "roducts and "rocedures when cleaning a la"to". 'lwa$s read all warning la3els on the cleaning "roducts. The com"onents are (er$ sensiti(e and should 3e handled with care. !onsult the com"uer manual for additional information and cleaning suggestions. 1ey. Use twee;ers to remo(e an$ de3ris.&CD C)eaning -rocedures1. Turn oB the com"uter..&. Disconnect all attached de(ices.*. Disconnect com"uter from the electrical outlet. 67 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education Program:. )emo(e all installed 3atteries. .Efor la"to"s7=. /i"e dis"la$ with a soft0 lint-free cloth that is lightl$ moistened with a mild cleaning solution. !'UTIOF Do not s"ra$ cleaning solution directl$ onto the L!D dis"la$. Use "roducts s"ecifcall$ designed for cleaning L!D dis"la$s. Touch -ad C)eaning -rocedures1. Turn oB the com"uter.&. Disconnect all attached de(ices.*. Disconnect com"uter from the electrical outlet. :. )emo(e all installed 3atteries. .Efor la"to"s7=. /i"e surface of touch "ad gentl$ with a soft0 lint-free cloth that is moistened with an a""ro(ed cleaner. Fe(er use a wet cloth.The small screen of a PD' or #mart"hone re,uires s"ecial care. The user o"erates these de(ices 3$ touching the screen with a st$lus. If dirt is "resent0 the PD' ma$ not accuratel$ detect the st$lus "osition or mo(ement. The dirt can also scratch the screen. !lean the screen with a small amount of non-a3rasi(e cleaning solution on a soft cloth. To "rotect the screen surface from a st$lus0 use self-adhesi(e screen co(ers.!'UTIOF Use a soft0 lint-free cloth with an a""ro(ed cleaning solution to a(oid damaging la"to" surfaces. '""l$ the cleaning solution to the lint-free cloth0 not directl$ to the la"to".%)oppy Drive C)eaning -roceduresUse a commerciall$-a(aila3le cleaning %it to clean a Oo""$ dri(e. 1lo""$ dri(e cleaning %its include "re-treated Oo""$ discs that remo(e contaminants from the Oo""$ dri(e heads that ha(e accumulated through normal o"eration. 1. )emo(e all media from the Oo""$ dri(e. &. Insert the cleaning disc and let it s"in for the suggested amount of time. Optica) Drive C)eaning -roceduresDirt0 dust0 and other contaminants can collect in the o"tical dri(es. !ontaminated dri(es can cause malfunctions0 missing data0 error messages0 and lost "roducti(it$. 1. Use a commerciall$-a(aila3le !D or D8D dri(e cleaning disc. Man$ Oo""$ disc cleaning %its include an o"tical disc cleaner. Li%e the 68 | P a g ePC HARDWARE SERVICINGThe Strengthened Technical-Vocational Education ProgramOo""$ disc cleaner0 o"tical disc cleaner %its contain a cleaning solution and a non-a3rasi(e disc that is inserted into the o"tical dri(e. &. )emo(e all media from the o"tical dri(e. *. Insert the cleaning disc and let it s"in for the suggested amount of time to clean all contact areas. C)eaning a CD or DID DiscIns"ect the disc for scratches. )e"lace discs that contain dee" scratchesH the$ ma$ cause data errors. If $ou notice "ro3lems such as s%i""ing or degraded "la$3ac% ,ualit$ with $our !Ds or D8Ds0 clean the discs. !ommercial "roducts are a(aila3le that clean discs and "ro(ide "rotectionfrom dust0 fnger"rints0 and scratches. !leaning "roducts for !Ds are safe to use on D8Ds. 1. Hold the disc 3$ the outer edge or 3$ the inside edge. &. "in 'U9 !onnectorPost and Pre Test1. 5&. '*. !:. !=. '>. 5?. '@. !A. D1C. !74 | P a g e