CHS Module 7 - Maintain Computer System and Networks

Republic of the Philippines Department of Education PUBLIC TECHNICAL!"CATI"NAL TECHNICAL!"CATI"NAL HI#H $CH""L$

Competenc% Based Learnin& 'aterial (ourth )ear

Module #7

'aintainin& Computer $%stem and Net*or+s Unit of Competency:

'aintain Computer $%stem and Net*or+s Qualification

Computer Hard*are $er,icin& II

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TABLE "( C"NTENT$ Page How to Use this Module................................................... Module...............................................................................i ............................i ....................................................................................................................... ....................................................................................................................... ....................................................................................................................... ....................................................................................................................... ....................................................................................... 1 Intoduction.................................................................................................ii !echnical !ems............................................. !ems.................................................................... ....................................... .....................iii .....iii "eaning utcome 1....................................................... 1........................................................................ ............................. ............1 1 Infomation $heet 1.1..................................................................................% peation $heet 1.1....................................... 1.1.............................................................. ...............................................& ........................& "eaning utcome %....................................................... %........................................................................ ............................. ............7 7 Infomation $heet %.1..................................................................................' $elf Chec( %.1...................................... %.1............................................................. ......................................................1% ...............................1% Infomation $heet %.%.....................................................................1) peation $heet %.1..................................... %.1............................................................ .............................................17 ......................17 "eaning utcome )....................................................... )..................................................................... ........................... ............. 1* +o, $heet ).1...................................... ).1............................................................. ........................................................%.................................%nswe /ey %.1....................................... %.1.............................................................. ..................................... ........................... ............. %% c(nowledgment













AC-N".LED#E'ENT Copyight Department of Education /001 0ist Pu,lished +U2 %--* !his module was ,ased on the Competency34ased Cuiculum5Conte6tual "eaning Mati6 C4C3C"M8 and finali9ed on the Instuctional Modules 0inali9ation e;elopment
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'r3 4emuel 4a% E3 )bane5 on le>ando ?oces $. $cience !echnology 'r3 4oselito H3 6apanta @eneal Maiano l;ae9 !echnical High $chool 'rs3 'irasol (3 Dasi& $an Pedo ?elocation Cente ational High $chool 's3 E,el%n U3 Escario on le>ando ?oces $. $cience !echnology 's3 Cherl%n (3 de Luna ssem,lywoman 0elicita @. 4enadino Memoial !ade $chool

Conte7tual Teacher2 •

'rs3 'a3 4osefina BuenoLuna 2. ?odiue9 Aocational High $chool Encoder2

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'rs3 'arites L3 Tele*i+ 'ila&ros P3 A&uihap eped Nelson Cleri&o













H". T" U$E THI$ '"DULE
ou ae eBuied to go though a seies of leaning acti;ities in ode to complete each each of the leaning leaning outcomes outcomes of the module. module. In each each leani leaning ng outcom outcomee thee thee ae Information $heets8 4ob $heets8 "peration $heets = and Acti,it% $heets. 0ollow these acti;ities on you own and answe the $elf3Chec( at the end of each leaning acti;ity. If you ha;e Buestions= donDt hesitate to as( you facilitato fo assistance. Reco&nition of Prior Learnin& 9RPL:

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ou may aleady ha;e some of the (nowledge and s(ills co;eed in this module ,ecause you ha;e: ,een wo(ing fo some time aleady ha;e completed taining in this aea. If you can demonstate to you teache that you ae competent in a paticula s(ill o s(ills= tal( to himEhe a,out ha;ing them fomally ecogni9ed so you donDt ha;e to do he same same taini taining ng again. again. If you you ha;e ha;e a Bualif Bualifica icatio tion n o Cetif Cetifica icate te of Compet Competency ency fom pe;ious tainings show it to you teache. If the s(ills s (ills you acBuied ae still cuent and ele;ant to this module= they may ,ecome pat of the e;idence you can pesent fo ?P". If you ae not sue a,out the cuency of you s(ills= discuss it wit h you teache. fte completing this module as( you teache to assess you competency. ?esult of you assessment will ,e ecoded in you competency pofile. ll the leaning acti;ities ae designed fo you to complete at you own pace. Inside this module you will find the acti;ities fo you to complete followed ,y ele;ant infomation sheets fo each leaning outcome. 2ach leaning outcome may ha;e moe than one leaning acti;ity.













Course 2 Computer Hard*are $er,icin& NC II Unit of Competenc% 2 'aintain Computer $%stem and Net*or+s 'odule 2 'aintainin& Computer $%stems an a nd Net*or+s

INTR"DUCTI"N !his module contains infomation and suggested leaning acti;ities on Compute Hadwae $e;icing C II. It includes the following competencies: plan and pepae maintenance poceduesG maintain compute system and netwo(sG and inspect and test compute system and netwo(s. It consists of ; leaning outcomes. 2ach leaning outcome contains leaning acti;ities suppoted ,y each instuctional sheet. Upon completion of this module= epot to you teache to assess you achie;ement of (nowledge and s(ills eBuiement of this module. If you pass the assessment= you will ,e gi;en a cetificate of completion.

$U''AR) "( LEARNIN# "UTC"'E$2

Upon completion of the module you should ,e a,le to: "1. "1. Plan Plan and and pep pepae ae mainte maintenan nance ce poc pocedu edues es "%. "%. Mainta Maintain in comp compute ute system system and netwo netwo(s (s "). "). Inspec Inspectt and test comput compute e system system and netwo netwo(s (s PRERE
ou must ha;e completed module F iagnose and !ou,leshoot Compute $ystem and module & Configue Compute $ystems and a nd etwo(s ,efoe studying this module.















TECHNICAL TER'$   

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"H$ = ccupational Health and $afety LAN LA N Card Ca rd 5 "ocal aea netwo( inteface cad. $er, $e r,er er 5 is a pat of a netwo(. It is a special compute that uses on the netwo( can asses to cay out a paticula >o,. Port hub >Port 5 is a connecto on the ,ac( of a compute compute o othe de;ice.  pot is eithe a seial pot o a paallel pot. 'ode 'o dem m 3 9'odulatorDemodulator: !he modem is a de;ice that allows a gi;en compute to shae data o othewise a de;ice which let computes e6change infomation U$B 5 Uni;esal $eial Pot8 $can $c anne nerr3 it is an input de;ice that ead te6t o illustation pinted on pape= tanslates the infomation into a fom that a compute can use. Printe Pri nterr  It is a piece of hadwae that poduces a pape copy also (nown as JhadcopyD8 of the infomation geneated ,y the compute. (lash (la sh dri,e dri ,e = a pota,le stoage de;ice which is plug diectly to the U$4 pot. Net*or+ = a goup of computes and associated de;ices that ae connected ,y communications facilities. "$ 9"peratin& s%stem: softwae that contols the allocation and use of pogams and data that a compute uses. $oft*are 5 pogams and data that a compute uses. 'otherboard = contains the CPU= 4I$= Memoy= mass stoage intefaces= seial and paallel pots= e6pansion slot and all the contolles eBuied to contol standad peipheal de;ices such as the display sceen= (ey,oad and dis( di;e UTP = Unshielded !wisted Pai8 least e6pensi;e and most popula netwo( media. LAN = "ocal ea etwo(= the connection of computes within an ogani9ation o a ,uilding. Me topolitan ea etwo(= the esta,lishment of connection among computes 'AN 5 Metopolitan within a county o municipality. .AN 5












Course 2 Computer Hard*are $er,icin& NC II Unit of Competenc% 2 'aintain Computer $%stem and Net*or+s 'odule 2 'aintainin& of Computer $%stem and Net*or+s L"?@

2 Plan and Prepare 'aintenance Procedures

Assessment Criteria2

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?eBu ?eBui iem emen entt fo fo pla plann nnin ing g and and pep pepa ain ing g fo fo maint mainten enanc ancee tas( tas( is oga ogani ni9ed 9ed.. 26ec 26ecut utio ion n of H$ H$ pol polic icie iess ae ae ca caie ied d out out alon along g wit with h the the tas( tas(.. Chec( Chec(ed ed com compu pute te syste system m to ,e maint maintai aine nedG dG whi which ch co coes espo pond ndss to spec specifi ifica cati tion on and eBuiements. K. eces ecessa say y mate mateia ials ls fo fo ens ensu uin ing g wo( wo( deli deli;e ;ey y conf confo om m to to the the tas( tas(.. F. Pop Pope e tool tools= s= eBu eBuip ipme ment nt and and test testin ing g de; de;ice icess fo fo main mainte tena nanc ncee pu pupo poses ses ae ae o,tained and chec(ed against coect opeation and safety. &. Comp Comput ute e sy system stem and and netw netwo o( ( to to ,e ,e mai maint ntai aine ned d ae ae ide ident ntif ified ied ,ased ,ased on the the teaches instuctions

References2

1. 4ige 4igelo low= w= $tep $tephe hen n +.= PC +.= PC Technician’s Troubleshooting, McGraw Hill %. /elly=iann /elly=ianne?ose= e?ose= Compute Compute Maintenance Maintenance and !ou,lesh !ou,leshootin ooting g Hand,oo( Hand,oo( Rose Nelson <24: http:EEhome.comcast.netEL ). $andle $andle=C =Coey oey== 0i6 ou ou wn wn PC=MI$ PC=MI$ Pess Pess K.

/uhl /uhlma man= n= a;e a;e== d(uhlmane66.com













IN("R'ATI"N $HEET @3@ Plan and Prepare 'aintenance Procedures Introduction2 Planning and pepaing systematic maintenance pocedue will sa;e time= money and fustation. It is a good idea and oppotunity to lean the pope cae and maintenance of you compute. PC maintenance is an impotant topic fo anyone who owns a PC. "oo(ing afte you PC popely ensues you of tou,le3fee tou,le3fee use. ?egula PC maintenance also (eeps the machineDs pefomance optimal. . Plan Maintenance Pocedues fo Compute $ystem and etwo(ing. 1. esign a systematic maintenance plan fo hadwae. • • • • • •

Monitoing= e;aluating and updating plan. Place you compute in a well ;entilated aea. $chedule use of computes fo its longe life. Mo;e computes only when it is tuned off and unplugged. !eat you compute popely. Maintain you had dis(

%. esign a systematic maintenance plan fo you softwae. •

4ac(up you files













T)PE$ "( 'AINTENANCE PR"CEDURE2 9@: Hadwae maintenance is the testing and cleaning of eBuipment. 9/: Infomation system maintenance is the outine updating of maste files= such as adding and deleting employees and customes and changing cedit limits and poduct pices. 9;: $oftwae o pogam maintenance is the updating of application pogams in ode to meet changing infomation eBuiements= such as adding new functions and changing data fomats. It also includes fi6ing ,ugs and adapting the softwae to new hadwae de;ices. 9: is( o file maintenance is the peiodic eogani9ing of dis( files that ha;e ,ecome fagmented due to continuous updating.

.or+ place procedures •

Identify ha9ads and assess is(.

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26ecution of H$ policies ae caied out along with the tas(.

0ollow 0ollowing ing cetain cetain pocedue pocedue is ;ey ;ey impota impotant nt to pefo pefom m a gi;en gi;en opeat opeation ion o e;olution o in eaction to a gi;en e;ent. !he ta,le ,elow shows diffeent elements and thei coesponding pefomance citeia to ,e a,le to identify occupational health and safety ha9ads= and assess is(= as well as follow instuctions and pocedue in the wo(place with minimal minimal supe;ision. supe;ision. !he students students will also ,e capa,le capa,le of paticipatin paticipating g and conti,uting conti,uting to H$ management issues.













ELE'ENT

PER("R'ANCE CRITERIA

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26amples of H$ issues which may need to ,e aised ,y wo(es with designated pesonnel may include:

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consultation on H$ mattes ?aise tas( andEo andEo >o, specific H$ issues with appopiate people in accodance with wo(place pocedues and ele;ant H$ legislati;e eBuiements Conti,ute to paticipati;e paticipati;e aangement fo H$ management in the wo(place within oganisational pocedues and the scope of esponsi,ilities and competencies Po;ide feed,ac( to supe;iso on ha9ads in wo( aea in line with oganisational H$ policies and pocedues Po;ide suppot suppot in implementing pocedues to contol is(s in accodance with oganisational pocedues Ha9ads identified Po,lems encounteed in managing is(s associated with ha9ads Claification on undestanding of H$ policies and pocedues Communication and consultation pocesses 0ollow up on epots and feed,ac(. 2ffecti;eness of is( contols in place















9: $ometimes= people will call any softwae a Otool.O 0o e6ample= the phase= Othee aent any tools to do that >o,O means that no application is a;aila,le to pefom the eBuied pocessing.

'aterials 2BuipmentE0acilities $e;e Compute peipheals es(top computes H$ guidelines Phil. 2n;ionmental potection standads Monitos Mothe,oad Powe supply etwo( de;ice and ca,lings Hu,s $witches " Cads

!ools  Instuments Potecti;e eye wea
$upplies  Mateials 0loppy dis( Compact is(













Clean mouse Clean screen Clean up hard drives

/3 esign a systematic daily plan fo you softwae= gi;en the time allot ment of 1 wee(.

'AINTENANCE TA$-

Create an emergency diskette Check for viruses 4ac( up files

Defragment hard drive Scan hard drive for errors

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Pogam couse Unit of Competency Module L"3/ Title

: Computer Hard*are $er,icin& NCII : 'aintain Computer $%stem and Net*or+s Net*or+s : 'aintainin& of Computer $%stem and 2 'aintain Computer $%stem and

Net*or+s


1. %. ). K. F.

ppopiate ppopiate pesona pesonall potecti;e potecti;e eBuipmen eBuipmentt confom to standad standad pocedues pocedues.. Confimati Confimation on of compute compute nomal function function confom confomss to coect opeati opeation on and safety. safety. Peiodic Peiodic maintenance maintenance of eBuipment eBuipment is pefomed pefomed following following manufactue manufactueDs Ds eBuiemen eBuiements. ts. 2sta,lishe 2sta,lished d pocedues pocedues ae follow followed ed in case of epai epai and and pats eplacem eplacements. ents. ccide ccidenta ntall e;ents o conditi conditions ons ae esponde esponded d to in accoda accodance nce with the esta,li esta,lishe shed d standads.

Resources2 Euipment>(acilities

$e;e Compute peipheals es(top computes H$ guidelines

Tools  Instruments

Potecti;e eye wea
$upplies  'aterials

0loppy dis( Compact is(













K. F. &. 7. *. '.

4igelow=$te 4igelow=$tephen phen +. PC !echnicia !echnicianDs nDs !ou,le !ou,leshooti shooting ng =Mc@aw =Mc@aw Hill Hill www.helpwithp www.he lpwithpcs.com cs.com http:EEen.wi(ip http:EEe n.wi(ipedia. edia.og og www.techsoup www.tec hsoup.og .og www.howstuffwo www.ho wstuffwo(s.com (s.com www.micosoft.c www.mic osoft.comEtech omEtechnetEn netEnetwo( etwo(













!hee ae tools and eBuipments used to potect the use and the compute co mpute system. !ypes of pesonal potecti;e de;ices 1.

nti3static de;ices

%. Powe Powe sug sugee po pote tect cto oss ). Pes Pesona onall eBui eBuipm pment entss

E$D 9Electro $tatic Dischar&e:

3 small amount of static electicity that can small pats of you compute.

nti3static de;ices 3e;ices designed to potect the compute fom static electicity. 26amples: 1. nti nti3s 3sta tati ticc wis wistt sta stap p %. nti nti3s 3sta tati ticc mat ). nti nti3s 3sta tati ticc ,ag ,ag K. nti nti3s 3sta tati ticc spa spay y

destoy















?egula scheduled up(eep of you compute will (eep you and you and you compute wo(ing popely. Dail% $chedule • • •

Update ;ius and spywae spywae definitions o incemental ,ac(up 5 ,ac( up updated files fo each date. ?e,oot upon cash3 ?e,oot the compute to fi6 you pc upon cash.

.ee+l% •

0ull ;ius and spywae scan













Defra&ment hard dis+s

Monthly

es

$can for hard dis+ read errors

es

Clean mouse

Monthly

o

Chec+ for full hard dis+ ,olumes and remo,e unnecessar% files

Monthly

o

Update ,irus definition files

Monthly

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Chec+ internal connections and cables

nnually

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Clean +e%board

nnually

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IN("R'ATI"N IN("R'ATI"N $HEET /3/













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4owsing infected sites ownloading files fom the intenet

$teps to Remo,e !iruses

?emo;ing ;iuses= though technical= is yet a ;ey simple pocess if all the eBuied steps ae popely followed. !he ,asic steps ae: • •

4uy o download an anti;ius softwae Install the anti;ius softwae



























Polymophic ;iuses:  ;ius that can encypt its code in diffeent ways so that it appeas diffeently in each infection. !hese ;iuses ae moe difficult to detect. 26amples: In;oluntay= $timulate= Cascade= Phoeni6= 2;il= Poud= Aius 1-1 Maco Aiuses:  maco ;ius is a new type of compute ;ius that infects the macos within a













!irus remo,al Euipment and 'aterials2













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CHS Module 7 - Maintain Computer System and Networks

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