Misrak TVET College Training, Teaching and Learning Materials Development yes
MISRAK TVET COLLEGE under
Ethiopian TVET-System INFOM!TION TEC"NOLO#$ %&''OT %EVICE Level I
LEARNING GUIDE # 23 &nit o( Competence) Competence ) Module Title ) L# Code ) TTLM Code )
!ppl* +ualit* %tandards !ppl*ing +ualit* %tandards ICT IT% M-. L-/ /0 ICT IT% TTLM-. -1
LO /) !ssess 2ualit* o( received articles
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age 1 o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
INTRODUCTION
Learning Guide # 23
This learning guide is developed to provide *ou the necessar* in(ormation regarding the (ollo7ing content coverage and topics 6 •
Final product against 7orkplace
This guide 7ill also assist *ou to attain the learning outcome stated in the cover page8 %peci(icall*, %peci(icall*, upon completion o( this Learning #uide, *ou 7ill 9e a9le to 6 • •
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Check received materials, articles or (inal product against 7orkplace standards8 Measure the materials, articles, or products using appropriate measuring instruments in accordance 7ith 7orkplace procedures8 Identi(* and correct the causes o( an* identi(ied (aults in accordance 7ith the 7orkplace procedures8
Learning Actiitie! 8 ead the speci(ic o9:ectives o( this Learning #uide8 /8 ead the in(ormation 7ritten in the ;In(ormation %heets < in pages 03=8 08 !ccomplish the ;%el(3check< in page .8 48 I( *ou earned satis(actor*, proceed to ;Lap Test on page 58 "o7ever, i( *our rating is unsatis(actor*, see *our teacher (or (urther instructions or go 9ack to !ctivit* >8 18 Do the ;L!' test< ?i( *ou are read*@ and sho7 *our output to *our teacher8 $our teacher 7ill evaluate *our output either satis(actor* or unsatis(actor*8 I( unsatis(actor*, *our teacher shall advice *ou on additional 7ork8 Aut i( satis(actor* *ou can proceed to Learning #uide /48
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$our teacher 7ill evaluate *our output either satis(actor* or unsatis(actor*8 I( unsatis(actor*, *our teacher shall advice *ou on additional 7ork8 Aut i( satis(actor* *ou can proceed to the neBt topic8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age 2 o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
In"r$atin S%eet 1
Final product against workplace
Oerie& Technological Technological advances have made computers an important part o( ever* 7orkplace8 Man* compan companies ies sto store re valua valua9le 9le data data on comput computer er s*stem s*stems, s, data9a data9ases ses and net7or net7orks, ks, and most most 7orkplace 7orkplace communication communication is done using computers computers and net7orks8 !lthough computers computers allo7 9usinesses 9usinesses to streamline streamline processes, distri9ute distri9ute in(ormation in(ormation 2uickl* and sta* competitive, competitive, it also allo7s allo7s the potent potential ial (or securit securit* * iss issues ues that that can ultimat ultimatel* el* a((ect a((ect 9usine 9usiness ss opera operatio tions ns and integrit*8 'ene"it! Aecause most data is stored on computers and almost all communication is done on an organi organiati ations ons computer computer net7ork, net7ork, the securit* securit* o( the data data is crucia cruciall (or the success success o( an organiation8 Monitoring 7orkplace computers can 9e done using a variet* o( so(t7are products that monitor computer net7orks8 This so(t7are can also 9e used to monitor or track emplo*ee activit* and productivit* as 7ell8 This ensures data is secure 9* using the so(t7are to 9lock certai certain n 7e9sit 7e9sites, es, alert alert in(orm in(ormati ation on techno technolog* log* sta(( sta(( o( potent potential ial threat threats, s, such as comput computer er viruses, as 7ell as monitor computer and Internet usage 9* emplo*ees8 E""ect! Monitoring 7orkplace computers can secure data stored on computer s*stems, as 7ell as ensure ensure emplo* emplo*ees ees are are using using 7orkpl 7orkplace ace comput computers ers (or 9usiness 9usiness purpose purposes8 s8 %ome %ome monito monitorin ring g so(t so(t7a 7are re comes comes highl highl* * reco recomm mmend ended ed at a reas reason ona9 a9le le cos costt and and can can 9e cust custom omi ied ed to an organi organiati ations ons needs8 needs8 This This re2uir re2uires es some some additi additional onal e((ort e((orts s 9* manag managemen ementt or in(orm in(ormati ation on technolog* sta((, 9ut proves its a valua9le tool to ensure the securit* o( 9usiness data and integrit*8 !lthough computer 7orkplace monitoring has 9ecome a necessit*, emplo*ees o(ten dont understand the reasons (or computer monitoring and ma* (eel violated or micro3managed8 Cn!ideratin! hen considering using computer monitoring so(t7are so(t7are in the 7orkplace, do eBtensive eBtensive research on di((erent products and services8 !lthough some so(t7are is costl*, it ma* 9e 7orth the investment to protect the integrit* o( a 9usiness8 I( an organiation decides to use this so(t7 so( t7ar are33i e33in(o n(orm rm emplo* emplo*ees ees88 !llo7 !llo7 emplo* emplo*ees ees to see the so( so(t7 t7are are and its capa9i capa9ilit lities ies 9* demonstrating its (eatures in a group setting8 Ae open and honest regarding ho7 the so(t7are 7ill 9e used and ho7 it 7ill add securit* to the 9usiness8 Talk to emplo*ees a9out their rights regarding computer monitoring8 The TeBas ork(orce Commission has policies (or 7orkplace computer monitoring and emplo*ees should 9e a7are o( those policies8 !lso allo7 emplo*ees to ask 2uestions in a private setting i( the* 7ish8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age 3 o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
U!ing a((r(riate $ea!uring in!tru$ent! I( *ouve shopped around (or :ust the right desk (or *our space, 9ut havent (ound eBactl* 7hat *oure looking (or, consider 9uilding *our o7n8 Counter top desks are a uni2ue 7a* to modi(* modi(* *our 7ork area8 hether starting starting 7ith a 9rand 9rand ne7 section section counter top, or repurposing repurposing old old count counter ers s a(te a(terr a remo remode del, l, count counter er top top desks desks make make a stur sturd* d* addi additi tion on to *o *our ur o((i o((ice ce (urn (urnis ishin hings gs88 ! mode modera ratel tel* * simp simple le do3i do3it3 t3*o *our urse sel( l( pro: pro:ec ect, t, 9uil 9uildi ding ng a count counter er top top desk desk is considera9l* less eBpensive than having a custom desk 9uilt, and re2uires less than one da*s 7ork to complete (rom start to (inish8 In!tructin! 8 Make Make a space space plan plan and measure measure the area 7here 7here the desk desk 7ill sit to ensure ensure the right (it8 (it8 Decide 7hether the desk 7ill 9e straight or a corner unit, and ho7 the desk 7ill 9e supported, and plan accordingl*8 %traight desks are a simpler pro:ect, 9ut corner units a((ord more 7orkspace and o(ten allo7 (or the 9est use o( the availa9le area8 /8 'urc 'urchas hase e supp suppli lies es (or (or the the pro: pro:ect ect,, incl includi uding ng coun counter ter tops tops,, supp suppor ortt s*st s*stem em,, and and an* an* 9rackets that ma* 9e re2uired8 Counter top can 9e cut at the time o( purchase, or ordered to (it, so 9e certain to have eBact measurements to ensure a correct (it 7ithout (urther cutting8 Collect all tools needed (or the pro:ect 9e(ore 9eginning8 08 'repare 'repare *our support support s*stem 9e(ore 9e(ore assem9ling assem9ling *our desk8 desk8 The simplest support support solution solution is to use kitchen ca9inets, metal (iling ca9inets, or sturd* plastic or medal dra7ers8 This 7ill make *our desk 9oth sturd* and eas* to move and re2uires no tools, cutting, or drilling8 This support solution is particularl* idea (or granite, metal, or stone counter top materials 7hich are di((icult to cut or drill8 48 Install Install the chosen chosen suppor supportt s*stem s*stem,, ensuring ensuring that it is 9oth the proper proper height, height, and level, level, 9e(ore appl*ing counter tops8 I( *ouve chosen ca9inets or other (orm o( (reestanding support, 9e certain the*re positioned at appropriate intervals to support the 7eight o( the counter top8 18 !((iB !((iB the counter counter top to the support support s*stem s*stem one section section at a time8 time8 I( *our counter counter is a heav* material, such as granite or stone, 9e certain the support s*stem is su((icient to har9or the 7eight 9e(ore appl*ing the neBt section o( counter8 Once all sections o( counter are installed, use a level to check that there the desk is even and level8 =8 !ppl !ppl* * the end cap cap (ini (inishi shing ng kit kit 7here 7here necess necessar ar* * and and add add an* an* 9rac 9racke kets ts that that migh mightt 9e re2uired re2uired to anchor the counter top8 This step is optional optional 9ut ma* 9e necessar* to ensure *our desk is 9oth attractive and sta9le8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age ) o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
Identi"*ing A++ ,tentia+ -ai+ure Cau!e! hen hen con(ro con(ronte nted d 7ith 7ith a s*stem s*stems s (ailur (ailure, e, there there is o(ten o(ten a natura naturall tendenc tendenc* * to 9egin 9egin disassem9ling hard7are hard7are to search (or the cause8 This is a poor approach8 approach8 Failed hard7are can eBpose precious in(ormation and sa(eguards are necessar* to prevent losing that in(ormation (rom careless remove procedures8 One must kno7 7hat to look (or prior prior to disassem9ling (ailed hard7are8 Faults that come and go are the 7orst ones to track do7n, since :ust 7hen *ou think *ou kno7 the cause o( the pro9lem pro9lem and intend to do something something a9out it can disappear disappear, leaving leaving *ou 7ondering 7hether or not its cured8 The most serious random pro9lem is a spontaneous re9oot, 7hich can 9e caused 9* a (ault*, 9ad mains inter(erence, or overheating, particularl* o( the C'&8 This is o(ten caused 9* (ailure o( the C'& (an, 9ut this is eas* enough to check 33 :ust open up the case and see i( the (an is still spinning8 I( *our cooling arrangements are not 9roken 9ut simpl* insu((icient ?this can happen, particularl* in the case o( !thlon processors, 7hich generate a lot o( heat@, *oull need to upgrade upgrade *our C'& heatsink andor (an to 9ring its top temperatu temperature re do7n to a more sensi9le sensi9le level8 "o7ever, *our computer is most likel* to go 7rong 7hen *ouve :ust changed something, (or instance 7hen *ouve installed a ne7 stick o( !M, a soundcard, hard drive, or a ne7 C'&8 Even though this ma* 7ork per(ectl* 7ell, *ou ma* have distur9ed one o( the ca9les inside *our 'C at the same time, giving *ou a completel* unrelated pro9lemG or i( *ouve 9een overclocking *our C'&, it ma* stop 7orking 7hen a ne7 'CI card is installed8 ,&er Su((+ie! I( *our 'C 7ont 9oot up, no LEDs illuminate on the 'Cs (ront panel, and *ou cant hear *our hard drives or cooling (ans spin up, *ou ma* have a pro9lem 7ith *our mains suppl*, or a (ault* or dead computer '%& ?'o7er %uppl* &nit@8 Fault* po7er supplies can also cause random re9oots) these can also mean that *our po7er suppl* is 7orking properl* 9ut is under such a heav* load that occasionall* the voltages sag a 9it, or even collapse8 'IOS 'ee( Cde! I( the po7er suppl* suppl* is 7orking, 7orking, 9ooting *our 'C 7ill light the (ront panel3po7e panel3po7err LED and let the AIO% per(orm a 'o7er3On %el(3T %el(3Test, or 'O%T8 This initialies s*stem hard7areG tests !M the ke*9oard, serial and parallel ports, initialie the (lopp* drive and hard disk controller, and diagnose diagnose an* 9asic 9asic pro9lems8 pro9lems8 I( none are (ound, *oull get one short 9eep (rom the internal 'C speaker8 speaker8 ! com9ination o( long or short 9eeps signi(ies a pro9lem, and in most cases *our 'C 7ill re(use to carr* on8 !lthough man* 9eep codes are similar (rom mother9oard to mother9oard, *ou reall* need to re(er to the manual to (ind out 7hat each se2uence o( 9eeps signi(ies8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age . o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
Ca/+e I!!ue! !nother source o( sometimes 7eird hard7are (aults is internal ca9ling8 For instance, i( the IDE ca9le connecting *our mother9oard and hard drive is not inserted correctl*, *our *our drive ma* not 9e detected 9* the AIO% at all8 One o( the conductors on all IDE ca9les 7ill either 9e colored red or have 7riting printing on it, so make sure these identi(ication marks match up 7ith pin one on *our hard drive, and pin one on the mother9oard socket8
Su$$ar* n 0& t -i and Aid Genera+ ,rtectin -au+t! I( *ou usuall* get a general protection (ault 7hen *our computer has 9een running (or a certain length o( time, then overheating is a likel* cause8 $ou ma* have to reduce the level o( over clocking or replace a (an that isnt 7orking8 hen the pro9lem occurs a(ter the addition o( ne7 memor*, remove or replace it to see i( this cures the pro9lem8 I( *ou cant do an* o( this *oursel(, get get an engineer to do it (or *ou8 •
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hen the (ault al7a*s occurs soon a(ter turning on *our computer, computer, it ma* 9e caused 9* a driver used 9* one o( the programs that loads at start up or 9* indo7s itsel(8 $ou $ou can tr* a indo7s install 9ut choose the repair option, 7hich 7ill (iB corrupt or missing (iles 7ithout losing *our data or programs8 I( the (ault al7a*s happens 7hen a particular program is running, uninstall and then re3 install it8 !lso, check the th e suppliers 7e9site (or a later version o( the program or drivers and install them8 !ctuall* (inding the cause o( the general protection (ault can 9e a time3consuming process and *ou can speed this up 9* using a tool that 7ill automate the task8 One o( the 9est Ive (ound (or this is egistr* 'atrol, 7hich, despite its name, does much more than :ust sort out the 'Cs registr*8 It 7ill, in (act, undertake a deep scan o( the 7hole computer, computer, sorting out all the drivers and DLLs that are the most likel* cause o( general protection (aults8 !s a 9onus, it 7ill also (iB all t*pes o( other pro9lems so that *ou end up 7ith a machine that starts 2uicker, runs 9etter and is less likel* to crash8 egistr* 'atrol 'atrol comes 7ith a guarantee that it 7ill do 7hat it promises and is availa9le to tr* as a (ree do7nload (rom the compan*s 7e9site ?7778registr*patrol8com@8 ?7778registr*patrol8com@8 Once *ouve installed it and run the scan, *our 'C 7ill run as it did 7hen it 7as ne7 and general protection (aults 7ill 9e a thing o( the past8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
Se+"C%ec4 1 Name:____________________
5ritten Te!t Date:_________________
Instruction: Answer all the questions listed below, if you have some clarifications- feel free to ask your teacher.
8 I( *our 'C 7ont 7ont 9oot up, no LEDs LEDs illuminate illuminate on the 'Cs (ront (ront panel, and *ou *ou cant hear *our hard drives or cooling (ans spin up /8 !nother !nother source o( sometimes sometimes 7eird 7eird hard7are hard7are (aults (aults is internal internal ca9ling 08 Monitoring Monitoring 7orkplace 7orkplace computers computers can can secure data stored stored on computer computer s*stems s*stems 48 using computer computer monitoring monitoring so(t7ar so(t7are e in the 7orkplace, 7orkplace, do eBtensive eBtensive research research on di((erent products and services 18 HHHHHHHHHH HHHHHHHHHH advances advances have made made computers an important part o( ever* 7orkplace
$our $our teacher 7ill evaluate *our output either satis(actor* or unsatis(actor*8 I(
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age 6 o( 5
Misrak TVET College Training, Teaching and Learning Materials Development
&nsatis(actor*, *our trainer shall advice *ou on additional 7ork8 Aut i( satis(actor*, *ou can proceed to the neBt topic8
Learning #uide st e evision
Date) -13/-4 !uthor) IC ICT, IT 6 Misrak TVET College
'age 7 o( 5
