Maintain Computer System and Networks

8/13/2019 Maintain Computer System and Networks

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Republic of the PhilippinesDepartment of Education

PUBLIC TECHNICAL!"CATI"NALHI#H $CH""L$

Competenc% BasedLearnin& 'aterial

(ourth )ear

Module #7

'aintainin& Computer $%stem

and Net*or+sUnit of Competency:

'aintain Computer $%stem and Net*or+sQualification

Computer Hard*are $er,icin& II


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TABLE "( C"NTENT$

Page

How to Use this Module........................................................i

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.............................................................. 1

Intoduction.........................................................................ii

!echnical !ems..................................................................iii

"eaning utcome 1............................................................1

Infomation $heet 1.1..........................................................%

peation $heet 1.1............................................................&

"eaning utcome %............................................................7

Infomation $heet %.1..........................................................'

$elf Chec( %.1....................................................................1%

Infomation $heet %.%.............................................1)

peation $heet %.1........................................................17

"eaning utcome )..........................................................1*

+o, $heet ).1.....................................................................%-

nswe /ey %.1..................................................................%%

Acknowledgment


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AC-N".LED#E'ENT

Copyight Department of Education /001

0ist Pu,lished +U2 %--*

!his module was ,ased on the Competency34ased Cuiculum5Conte6tual "eaning Mati6 C4C3C"M8 and finali9ed on the InstuctionalModules 0inali9ation e;elopment


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H". T" U$E THI$ '"DULE


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Course 2 Computer Hard*are$er,icin& NC IIUnit of Competenc% 2 'aintainComputer $%stem and Net*or+s'odule 2 'aintainin& Computer

$%stems and Net*or+s

INTR"DUCTI"N

!his module contains infomation and suggested leaning acti;itieson Compute Hadwae $e;icing C II. It includes the followingcompetencies: plan and pepae maintenance poceduesG maintaincompute system and netwo(sG and inspect and test compute systemand netwo(s.

It consists of ;leaning outcomes. 2ach leaning outcome containsleaning acti;ities suppoted ,y each instuctional sheet. Upon completionof this module= epot to you teache to assess you achie;ement of(nowledge and s(ills eBuiement of this module. If you pass theassessment= you will ,e gi;en a cetificate of completion.

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

Upon completion of the module you should ,e a,le to:

"1. Plan and pepae maintenance pocedues"%. Maintain compute system and netwo(s"). Inspect and test compute system and netwo(s

PRERE


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TECHNICAL TER'$

"H$ = ccupational Health and $afety

LAN Card 5 "ocal aea netwo( inteface cad.

$er,er 5 is a pat of a netwo(. It is a special compute that uses onthe netwo( can asses to cay out a paticula >o,.

Port hub >Port 5 is a connecto on the ,ac( of a compute o othede;ice. pot is eithe a seial pot o a paallel pot.

'odem 3 9'odulatorDemodulator:!he modem is a de;ice thatallows a gi;en compute to shae data o othewise a de;ice which letcomputes e6change infomation

U$B 5 Uni;esal $eial Pot8

$canner3 it is an input de;ice that ead te6t o illustation pinted onpape= tanslates the infomation into a fom that a compute can use.

Printer It is a piece of hadwae that poduces a pape copy also

(nown as JhadcopyD8 of the infomation geneated ,y the compute. (lash dri,e = a pota,le stoage de;ice which is plug diectly to the

U$4 pot.

Net*or+ = a goup of computes and associated de;ices that aeconnected ,y communications facilities.

"$ 9"peratin& s%stem: softwae that contols the allocation and useof pogams and data that a compute uses.

$oft*are 5 pogams and data that a compute uses.

'otherboard = contains the CPU= 4I$= Memoy= mass stoageintefaces= seial and paallel pots= e6pansion slot and all the

contolles eBuied to contol standad peipheal de;ices such as thedisplay sceen= (ey,oad and dis( di;e

UTP = Unshielded !wisted Pai8 least e6pensi;e and most populanetwo( media.

LAN = "ocal ea etwo(= the connection of computes within anogani9ation o a ,uilding.

'AN 5 Metopolitan ea etwo(= the esta,lishment of connectionamong computes within a county o municipality.

.AN 5


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Course 2 Computer Hard*are$er,icin& NC IIUnit of Competenc% 2 'aintainComputer $%stem and Net*or+s'odule 2 'aintainin& of Computer

$%stem and Net*or+s

L"?@ 2 Plan and Prepare 'aintenance Procedures

Assessment Criteria2

1. ?eBuiement fo planning and pepaing fo maintenance tas( isogani9ed.

%. 26ecution of H$ policies ae caied out along with the tas(.). Chec(ed compute system to ,e maintainedG which coespondsto specification and eBuiements.

K. ecessay mateials fo ensuing wo( deli;ey confom to thetas(.

F. Pope tools= eBuipment and testing de;ices fo maintenancepuposes ae o,tained and chec(ed against coect opeation andsafety.

&. Compute system and netwo( to ,e maintained ae identified,ased on the teaches instuctions

References2

1. 4igelow= $tephen +.=PC Technicians Troubleshooting, McGrawHill

%. /elly=ianne?ose= Compute Maintenance and !ou,leshootingHand,oo( Rose Nelson


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'. www.yahoo.com

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

Plan and Prepare 'aintenance ProceduresIntroduction2

Planning and pepaing systematic maintenance pocedue will sa;e time=money and fustation. It is a good idea and oppotunity to lean the pope caeand maintenance of you compute.

PC maintenance is an important topic for anyone who owns a PC. Looking after your PCproperly ensures you of trouble-free use. Regular PC maintenance also keeps the machines

performance optimal.

. Plan Maintenance Pocedues fo Compute $ystem and etwo(ing.

1. esign a systematic maintenance plan fo hadwae.

Monitoing= e;aluating and updating plan.

Place you compute in a well ;entilated aea.

$chedule use of computes fo its longe life.

Mo;e computes only when it is tuned off and unplugged.

!eat you compute popely.

Maintain you had dis(

%. esign a systematic maintenance plan fo you softwae.

4ac(up you files

Install o secue passwods

elete tempoay files

Update anti;ius and spy wae

'"NTHL) C"'PUTER 'AINTENANCE PLAN

4UNE 4UL) AU# $EPT "CT N"! DECAnti irus software

checkups
http://www.yahoo.com/http://www.yahoo.com/


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!isk space

utili"ation

!efragmentation of

hard dries

#roubleshoot

hardware and

software issues

T)PE$ "( 'AINTENANCE PR"CEDURE2

9@:Hadwae maintenance is the testing and cleaning of eBuipment.

9/:Infomation system maintenance is the outine updating of mastefiles= such as adding and deleting employees and customes and changingcedit limits and poduct pices.

9;:$oftwae o pogam maintenance is the updating of applicationpogams in ode to meet changing infomation eBuiements= such asadding new functions and changing data fomats. It also includes fi6ing,ugs and adapting the softwae to new hadwae de;ices.

9:is( o file maintenance is the peiodic eogani9ing of dis( files thatha;e ,ecome fagmented due to continuous updating.

.or+ place procedures

Identify ha9ads and assess is(.

26ecution of H$ policies ae caied out along with the tas(.

0ollowing cetain pocedue is ;ey impotant to pefom a gi;enopeation o e;olution o in eaction to a gi;en e;ent. !he ta,le ,elowshows diffeent elements and thei coesponding pefomance citeia to,e a,le to identify occupational health and safety ha9ads= and assessis(= as well as follow instuctions and pocedue in the wo(place withminimal supe;ision. !he students will also ,e capa,le of paticipatingand conti,uting to H$ management issues.

ELE'ENT PER("R'ANCE CRITERIA

1. Identify ha9ads andassess is(.

1.1 Identify ha9ads in the wo(aea and duing thepefomance of wo(placeduties.

1.% ssess le;el of is(

%. 0ollow pocedues andstategies fo is(

%.1 ?epot ha9ads in the wo(aea to designated pesonnel


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contol. accoding to wo(placepocedues

%.% 0ollow wo(place poceduesand wo( instuctions foassessing and contolling is(swith minimal supe;ision.

%.) o, specificH$ issues with appopiatepeople in accodance withwo(place pocedues andele;ant H$ legislati;eeBuiements

).) Conti,ute to paticipati;eaangement fo H$

management in the wo(placewithin oganisationalpocedues and the scope ofesponsi,ilities andcompetencies

).K Po;ide feed,ac( to supe;isoon ha9ads in wo( aea in linewith oganisational H$policies and pocedues

).F Po;ide suppot in

implementing pocedues tocontol is(s in accodance withoganisational pocedues

26amples of H$ issueswhich may need to ,eaised ,y wo(es withdesignated pesonnel mayinclude:

Ha9ads identified

Po,lems encounteed inmanaging is(s associated withha9ads

Claification onundestanding of H$ policiesand pocedues

Communication andconsultation pocesses


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0ollow up on epots andfeed,ac(.

2ffecti;eness of is(contols in place

!aining needs

Mateials= !ools= 2Buipments and !esting e;ices.

Tools

9@: pogam used fo softwae de;elopment o system maintenance.

Aitually any pogam o utility that helps pogammes o uses de;elopapplications o maintain thei computes can ,e called a tool. 26amples ofpogamming tools ae compiles= intepetes= assem,les= K@"s= editos=de,ugges and application geneatos.9/: pogam that helps the use analy9e o seach fo data. 0oe6ample= Buey and epot pogams ae often called Buey tools andepot tools.9;:n on3sceen function in a gaphics pogamG fo e6ample= a line daw=cicle daw o ,ush tool.9: softwae contol panel fo setting use pefeences.

9:$ometimes= people will call any softwae a Ntool.N 0o e6ample= thephase= Nthee aenOt any tools to do that >o,N means that no application isa;aila,le to pefom the eBuied pocessing.


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"PERATI"N $HEET @3@

Plan and Prepare 'aintenance Procedure

1. PepaeEesign a daily maintenance plan fo you hadwae= gi;en the time allotment of 1 wee(.

'AINTENANCE TA$- '"N TUE .ED THUR (RI

Recalibrate the battery

Clean computer case

Clean keyboard

Clean mouse

Materials

2BuipmentE0acilities

$e;eComputepeiphealses(top computesH$ guidelinesPhil. 2n;ionmentalpotection standadsMonitosMothe,oadPowe supply

etwo( de;ice andca,lingsHu,s$witches" CadsPintes and$cannes?outesU$4 0lash i;es

!ools Instuments

Potecti;e eye wea


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Clean screen

Clean up hard drives

/3esign a systematic daily plan fo you softwae= gi;en the time allotment of 1wee(.

'AINTENANCE TA$- '"N TUE .ED THUR (RIDA

)

Create an emergencydiskette

Check for viruses4ac( up files

Defragment hard drive

Scan hard drive for errors


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Pogam couse :Computer Hard*are $er,icin& NCIIUnit of Competency :'aintain Computer $%stem and Net*or+sModule : 'aintainin& of Computer $%stem and

Net*or+s

L"3/ Title 2 'aintain Computer $%stem and Net*or+s


1. ppopiate pesonal potecti;e eBuipment confom to standadpocedues.

%. Confimation of compute nomal function confoms to coectopeation and safety.

). Peiodic maintenance of eBuipment is pefomed followingmanufactueDs eBuiements.

K. 2sta,lished pocedues ae followed in case of epai and patseplacements.

F. ccidental e;ents o conditions ae esponded to in accodance withthe esta,lished standads.

Resources2Euipment>(aciliti

esTools Instruments $upplies

'aterials

$e;eCompute

peiphealses(top computesH$ guidelinesPhil. 2n;ionmentalpotection standadsMonitosMothe,oadPowe supplyetwo( de;ice andca,lingsHu,s

$witches" CadsPintes and$cannes?outesU$4 0lash i;es

Potecti;e eye wea


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Reference2

1. Mc"aughlin=?o,et= $asse=$usan= ?alston=May.0i6 ou wnPC.Philippine @aphic ts= Inc !andang $oa $t.Caloocan City

%. Mealco 0aoundation. Micocompute $e;icing Plus. Pasig City=

Philippines.). "egaspi=Calos= Caia= Ma( nthony. peate Pesonal Compute.

asmaias Compute "eaning Cente.asmaias=Ca;ite= PhilippinesK. 4igelow=$tephen +. PC !echnicianDs !ou,leshooting =Mc@aw HillF. www.helpwithpcs.com&. http:EEen.wi(ipedia.og7. www.techsoup.og*. www.howstuffwo(s.com'. www.micosoft.comEtechnetEnetwo(

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( '
http://www.helpwithpcs.com/http://en.wikipedia.org/http://www.techsoup.org/http://www.howstuffworks.com/http://www.microsoft.com/technet/networkhttp://www.helpwithpcs.com/http://en.wikipedia.org/http://www.techsoup.org/http://www.howstuffworks.com/http://www.microsoft.com/technet/network


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

Personal Protecti,e Euipment

!hee ae tools and eBuipments used to potect the use and the computesystem.

!ypes of pesonal potecti;e de;ices

$. nti3static de;ices

%. Powe suge potectos

). Pesonal eBuipments

E$D 9Electro $tatic Dischar&e:

3 small amount of static electicity that can destoy small pats of youcompute.

nti3static de;ices

3e;ices designed to potect the compute fom static electicity.

26amples:

1. nti3static wist stap%. nti3static mat

). nti3static ,ag

K. nti3static spay

Po*er sur&e protectors

3e;ices designed to potect the compute fom sudden powe seges fomintemittent powe souces.

26amples:1. A? utomatic Aoltage ?egulatos8

%. UP$ Uninteupted Powe $upply8

Personal Euipments

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 1-


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1. $mall paint ,ush

%. $cew di;es

). Plies and twee9es

K. Compessed ai

F. Handheld ;acuum

Periodic 'aintenance $cheme

?egula scheduled up(eep of you compute will (eep you and you and youcompute wo(ing popely.

Dail% $chedule

Update ;ius and spywae definitions

o incemental ,ac(up 5 ,ac( up updated files fo each date.

?e,oot upon cash3 ?e,oot the compute to fi6 you pc upon cash.

.ee+l%

0ull ;ius and spywae scan

Complete ,ac(up of files

Patch up 5@et latest softwae update fo you opeating system.

'onthl%

Clean you PC inside and out.

efag3 defag you had di;e to speed up its opeation.

)earl%

Chec( you pogams 5 clean up unused pogams

?efomat you had di;e and einstall the opeating system

Ma(e a full diagnostic chec( on hadwae and softwae

$ample 'aintenance scheme

Pre,enti,e 'aintenance Acti,it%Recommended

(reuenc%Auto

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 11


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$can hard dis+ file s%stems for errors aily es

$can for ,iruses aily es

Bac+ up data aily o

Clean CRT screen


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Chec+ hard dis+ for temperature and,ibration

nnually owhene;e case is

opened8o

Clean e7terior of case nnually o

Clean e7terior of monitor nnually o

Chec+ and clean interior8 motherboardand e7pansion cards if necessar%

nnually o

Chec+ internal connections and cables nnually o

Clean +e%board nnually o

$elf chec+ /3@

.rite %our ans*ers on %our ans*er sheet

1. 0o some,ody who always wo(s with computes= what pesonalpotecti;e de;ices do you usually useR

%. Computes should ,e potected fom static electicity to pe;entcomponent malfunction.


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

Remo,in& ,iruses from infected machines

Computer !irus

;ius is a destucti;e e6ecuta,le pogam thatinfects the othe pogams in the systemandspeads ,y eplicating itself.

$uch a pogam is designed to damage the;ictimDs computefiles.

Aiuses ae coded ,y malicious pogammes in a way that they canspead in the system without oneOs pemission and (nowledge.

Different Aspects of Computer !irus

0inde3 seaches fo the new uninfected files and the

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 1K
http://www.tech-faq.com/how-to-remove-a-virus.shtml#%23http://www.tech-faq.com/how-to-remove-a-virus.shtml#%23http://www.tech-faq.com/how-to-remove-a-virus.shtml#%23http://www.tech-faq.com/how-to-remove-a-virus.shtml#%23


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?eplicato3 actually tagets these files and infects it ,y multiplying itself.

Ho* do!irus Affects a $%stem

It coupts files

It slows down the speed of the compute system It causes the system to hang feBuently It deletes ;aious files

$ources of !irus Infection

;ius can ente the system and infect it though ;aious souces. $ome ofthe souces ae

Infected Cs= As= pen di;es= etc 23mail

4owsing infected sites ownloading files fom the intenet

$teps to Remo,e !iruses

?emo;ing ;iuses= though technical= is yet a ;ey simple pocess if all theeBuied steps ae popely followed.

!he ,asic steps ae:

4uy o download an anti;ius softwae Install the anti;ius softwae

Update anti;ius softwae with the latest ;ius definitions

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 1F


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o a complete system scan

'ethods of Eliminatin& !iruses

?emo;ing the ;ius 5


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26amples: 0om= is( /ille= Michelangelo= and $tone ;ius

Pogam ;iuses: !hese infect e6ecuta,le pogam files= such as those withe6tensions li(e .4I= .CM= .2S2= .A"= .?A di;e8 and .$$ de;ice di;e8.!hese pogams ae loaded in memoy duing e6ecution= ta(ing the ;ius

with them. !he ;ius ,ecomes acti;e in memoy= ma(ing copies of itself andinfecting files on dis(.

26amples: $unday= Cascade

Multipatite ;iuses: hy,id of 4oot and Pogam ;iuses. !hey infectpogam files and when the infected pogam is e6ecuted= these ;iusesinfect the ,oot ecod.

26amples: In;ade= 0lip= and !eBuila

$tealth ;iuses: !hese ;iuses use cetain techniBues to a;oid detection.!hey may eithe ediect the dis( head to ead anothe secto instead of theone in which they eside o they may alte the eading of the infected fileDssi9e shown in the diectoy listing. si9e gi;en in the diectoy.

26amples: 0odo= +oshi=


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A@ anti;ius Mcfee $can Micosoft nti;ius

"PERATI"N $HEET /3@

!irus remo,al

Euipment and 'aterials2

Euipment$ystem unitMonito/ey,oad and Mouse

'aterialsnti3;ius $oftwae A@ anti3;ius8

Aius emo;al

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 1*


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Po;ided with the necessay eBuipment and mateials tou,leshoot the ;iusinfected aea.

ou will ,e assessed using the following citeiaE,aluation2

CRITERIA Ratin&1.Peiodic maintenance is o,se;ed %-T

%. ,se;ance of safety pecautions. %-T

). ppopiate mateials ae used ;ius emo;al. )-T

K. Confimation of computes nomal function . )-T

1--T

Pogam couse : Computer Hard*are $er,icin& NCIIUnit of Competency : 'aintain Computer $%stem and Net*or+sModule : 'aintainin& of Computer $%stem and

Net*or+s

".) !itle : Inspectin& and testin& computer s%stem andnet*or+s


1. 0inal inspection of the de;ice is instituted to ensue tas( pefection.%. Compute system is ;alidated to ensue 1--T opeation.). "a,oatoy management and maintenance confoms to company

atmosphee.K. ccomplishment epot is deli;eed to concened teache afte

finishing the tas(.

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( 1'


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Resources2Euipment>(aciliti

esTools Instruments $upplies

'aterials

$e;eComputepeiphealses(top computesH$ guidelinesPhil. 2n;ionmentalpotection standadsMonitosMothe,oadPowe supplyetwo( de;ice andca,lingsHu,s$witches" CadsPintes and$cannes?outesU$4 0lash i;es

Potecti;e eye wea


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4"B $HEET ;3@

Computer $%stem and Net*or+ Inspection

'aterials8 Tools and Euipment

Euipment2

Compute unit

PinteHU4M2ME?oute!a,le

'aterials2


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Hard*are Inspection @i;en the following tools= mateials and eBuipment= pefom hadwaeinspection.

ou will ,e assessed using the following citeiaE,aluation2CRITERIA Ratin&

1. $eBuence of steps. %-T

%. ,se;ance safety pecautions. )-T

). Pope inspection of hadwae components. )-T

K. Pope inspection of the pinte. %-T

1--T

Net*or+ and Internet Inspection@i;en the following tools= mateials and eBuipment= pefom etwo(

and Intenet inspection.

ou will ,e assessed using the following citeia

E,aluation2CRITERIA Ratin&



). Pope inspection of netwo( components. )-T

K. Pope inspection of netwo( connection. )-T

1--T

ate: "). Inspect and !est Compute $ystem and etwo(s PageAesion Module 7. Maintaining Compute $ystem and etwo( %%


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"peratin& $%stem Inspection@i;en the following tools= mateials and eBuipment= pefom peating

$ystem inspection

ou will ,e assessed using the following citeia

E,aluation2CRITERIA RATIN#



). Pope inspection of opeating system. )-T

K. Pope inspection of opeating system updates. )-T

1--T

Ans*er +e% /3@

@3 Personal protecti,e de,ices3!he tools and eBuipments used topotect the use and the compute system

/3 Antistatic de,ices

nti3static wist stap

nti3static mat

nti3static ,ag

nti3static spay

Documents

Maintain Computer System and Networks