lo1

Misrak TVET College Training, Teaching and Learning Materials Development

MISRAK TVET COLLEGE under

Ethiopian TVET-System

INFOM!TION TEC"NOLO#$ %&''OT %EVICE Level I

LEARNING GUIDE # 1 &nit o( Competence) Connect "ard*are 'eripherals Module Title ) Connecting "ard*are 'eripherals L# Code ) ICT IT%+ L+ + TTLM Code ) ICT IT%+ TTLM -++

LO +) Con(irm e.uirements o( Clients

Learning #uide +st e evision

Date) -/0+1 !uthor) IC ICT, IT 3 Misrak TVET College

'age 1 o( 20


INTRODUCTION

Learning Guide # 1

This learning guide is developed to provide 4ou the necessar4 in(ormation regarding the (ollo*ing content coverage and topics 3 • •

Introduction to Computer and Connecting 'eripherals Identi(4 Client e.uirements

This guide *ill also assist 4ou to attain the learning outcome stated in the cover page5 %peci(icall4, %peci(icall4, upon completion o( this Learning #uide, 4ou *ill 6e a6le to 3 •

•

•

•

Identi(4 and con(irm client peripherals peripherals re.uirements in accordance *ith organi7ational organi7ational standards standards Document client re.uirements and peripherals needed in line *ith organi7ational standards and report (indings to the appropriate person Veri(4 Veri(4 client re.uirements *ith appropriate person in line *ith organi7ational standards standards and reporting procedures Take Take action to ensure client support e8pectations are covered 64 vendor *arrant4 and support services

Learning Activities +5 ead the speci(ic o69ectives o( this Learning #uide5 05 ead the in(ormation *ritten in the :In(ormation %heets +; in pages 2/+-5 25 !ccomplish the :%el(/check; in page +<5 15 I( 4ou earned a satis(actor4 evaluation proceed to :In(ormation %heet 0;5 "o*ever, i( 4our rating is unsatis(actor4, unsatis(actor4, see 4our teacher (or (urther instructions or go 6ack to Learning !ctivit4 = +5 -5 %u6mit 4our accomplished %el(/check5 This *ill (orm part o( 4our training port(olio5 <5 ead the in(ormation *ritten in the :In(ormation %heet 0; in pages +>/0?5 >5 !ccomplish the :%el(/check; in page 0@5 ?5 I( 4ou earned a satis(actor4 evaluation proceed to :Operation %heet; in pages 2/205 "o*ever, i( 4our rating is unsatis(actor4, unsatis(actor4, see 4our teacher (or (urther instructions or go 6ack to Learning !ctivit4 = 05 @5 ead the :Operation %heet; and tr4 to understand the procedures discussed5 +5 Do the :L!' test; in page 12 Ai( 4ou are read4B and sho* 4our output to 4our teacher5 $our teacher *ill evaluate 4our output either satis(actor4 or unsatis(actor45 unsatis(actor45 I( unsatis(actor4, unsatis(actor4, 4our teacher shall advice 4ou on additional *ork5 ut i( satis(actor4 4ou can proceed to Learning #uide 05

•

$our teacher *ill evaluate 4our output either satis(actor4 or unsatis(actor45 I( unsatis(actor4, 4our teacher shall advice 4ou on additional *ork5 ut i( satis(actor4 4ou can proceed to the ne8t topic5



'age  o( 20


In!"rati"n S$eet 1

Intr"ducti"n t" C"%uter and C"nnecting &eri%$era's

De!initi"ns "! c"%uter %eri%$era's • •

•

E8ternal or tangi6le devices *hich are attached to the e8ternal part o( the computer !n4 device connected internall4 or e8ternall4 to a computer and used in the trans(er o( data5 ! personal computer or *orkstation processes in(ormation and, strictl4 speaking, that is all the computer does5 Data Aunprocessed in(ormationB must get into the computer, and the processed in(ormation must get out5 Entering and displa4ing in(ormation is carried out on a *ide variet4 o( accessor4 devices called peripherals, also kno*n as inputoutput AIOB devices !n4 input, output or storage device connected e8ternall4 or internall4 to the computers C'&, such as a monitor, ke46oard, printer, disk, tape, graphics ta6let, scanner, 9o4 stick, paddle or mouse5

Device driver It is a small program that tells the computer ho* to communicate *ith inputoutput AperipheralB devices5 Ever4 peripheral device needs device driver to co mmunicate *ith the computer s4stem5

•

•

C"%uter %eri%$era's (ere gr"u%ed int" severa' categ"ries) The Input Devices, The Output Devices, the 'rocessors, The %torage Devices5 T$e In%ut In%ut device device / is a devi device ce that thats 6een 6een used used as a mean means s o( inpu input5 t5 It is an4 peripheral Apiece Apiece o( computer hard*are e.uipm e.uipment entBB used used to provi provide de data data and control control sign signal als s to an in(or in(ormation mation proces processing sing s4stem such such as a computer or other other in(ormation appliance55 The common input devices are appliance are ke46oard, mouse, scanner5 scanner5 •

Ke*+"ard , The computer ke4 6oard is used to input, or enter, letters, num6ers, s4m6ol s4m6ols, s, punctu punctuati ations ons and comman commands ds into into the comput computer er55 The standa standard rd ke46oa ke46oard rd la4out is sometimes called GHET$ la4out and it is the most common la4out5

-"( .e*+"ard ("r.s , The ke4s are arranged in ro*s and columns5 Hhen a ke4 is pressed, a uni.ue ro*/and/column signal is gene genera ratted and and sent sent to the the ke46 ke46oa oard rd inte inter( r(ac ace e IC on the the ke46oa ke46oard5 rd5 The ke46oa ke46oard rd inter( inter(ace ace then then conver converts ts the ro*/a ro*/and/ nd/ column signal into single 64te code called a e4 code or scan code5 Hhen the ke4 is released, a second signal is sent to the ke46oard inter(ace IC, *hich generates a 6reak code5 The ke46oard inter(ace IC then sends the scan codes 64 means o( serial connection connection through through the ke46oard inter(ace inter(ace to the computer5 computer5 The ke46oa ke46oard rd control controller ler,, loc locate ated d on the mother mother6oa 6oard, rd, conver converts ts the signal signals s to para parallel llel data data and generates an interrupt so that the input can 6e serviced 64 the microprocessor5 Learning #uide +st e evision


'age / o( 20


•

M"use M"use 3 or a %"inting device is device is an4 human inter(ace device that allo*s a user to input spatial data to a computer5 In the case o( mice and touch screens, this is usuall4 achieved 64 detecting movement across a ph4sical sur(ace5 !nalog devices, such as 2D mice mice,, 9o4sticks 9o4sticks,, or pointi pointing ng sticks sticks,, (uncti (unction on 64 report reporting ing their their angle angle o( de(lec de(lectio tion5 n5 Move Mo veme ment nts s o( the the poin pointi ting ng devi device ce are are echoe echoed d on the the scre screen en 64 move moveme ment nts s o( the cursor cursor,, creating a simple, intuitive *a4 to navigate a computers #&I #&I55

T*%es "! "use O%t ec$anica' "use / The "%tica',ec$anica' "r O%t",ec$anica' "use consists o( a 6all that rolls one o( t*o *heels inside the mouse5 This *heel contains a circle o( holes or notches that allo* a LED LED light light to 6e shined through and detected 64 a sensor, as each *heel spins the4 represent the J or $ a8is a8is (or (or the mouse pointer5 This mouse mouse is much more acc accura urate te than than the trad traditi itional onal mechanica mechanicall mouse mouse that that used used onl4 onl4 *heels and rollers, ho*ever is not as good as an optical mouse5 mouse5 O%tica' "use , Computer mouse mouse that that utili7es light/emitting diodes ALED ALEDBB or laser as a method o( tracking movement5 movement5 These mice are more pro(icient pro(icient than other computer mice5 These mice are easil4 identi(ied 64 e8amining the 6ottom o( the mouse5 I( the mouse has no 6all or has a light emitting (rom the 6ottom its most likel4 an optical mouse5 This mouse is much more accurate than the ordinar4 optical mechanical mouse that relies on the traction 6et*een the mouse 6all and the rollers5 One dra*6ack to an optical mouse is the4 can have pro6lems in 6right lights5 Ne* Optical Mice no longer have the disadvantages o( earlier mice and are capa6le o( 6eing 6eing utili7 utili7ed ed on an4 sur(ac sur(ace5 e5 In compar comparison ison to the tradi traditio tional nal Optica Optical/M l/Mech echanic anical al mouse, the Optical is a much 6etter solution (or a computer mouse5 •

Scanner is a device that can scan or digiti7e images on paper and convert them to data that the computer can use5 The4 can then 6e stored in a (ile, displa4ed on the screen, added to documents, or manipulated5



'age 0 o( 20


Ot$er in%ut devices C"%"site devices

ii Re"te (it$ Re"te (it$ attac$ed stra% Input devices, such as 6uttons and 9o4sticks, can 6e com6ined on a single ph4sical device that could 6e thought o( as a composite device5 Man4 gaming devices gaming devices have controllers like this5 Technicall4 Technicall4 mice are composite devices, as the4 6oth track movement and provide 6uttons (or clicking, 6ut composite devices are generall4 considered to have more than t*o di((erent (orms o( input5 

#ame controller



#amepad Aor #amepad Aor 9o4padB



'addle Agame controllerB



Hii emote

Iaging and Vide" in%ut Vide" in%ut devices Video input devices are used to digiti7e images or video (rom the outside *orld into the computer5 computer5 The in(ormation can 6e stored in a multitude o( (ormats depending on the users re.uirement5 

digital camera



He6cam



Image scanner



Fingerprint scanner



arcode reader



2D scanner



'age 2 o( 20

Misrak TVET College Training, Teaching and Learning Materials Development 

Laser range(inder

Medica' Iaging 

Computed tomograph4



Magnetic resonance imaging



'ositron emission tomograph4



Medical ultrasonograph4

Audi" in%ut devices In the (ashion o( video devices, audio devices are used to either capture or create sound5 In some cases, an audio output device can 6e used as an input device, in order to capture produced sound5 

Microphone



MIDI ke46oard or ke46oard or other digital musical instrument

Out%ut Device !n "ut%ut device is device is an4 piece o( computer hard*are e.uipment hard*are e.uipment used to communicate the the resu result lts s o( data data proces processin sing g carr carrie ied d ou outt 64 an in(orm in(ormati ation on process processing ing s4stem s4stem Asuc Asuch h as a computerB computerB to the outside *orld5 In computing, inputoutput, inputoutput, or IO, re(ers to the communication 6et*een an in(ormation processing s4stem Asuch s4stem Asuch as a computerB, computerB, and the outside *orld5 Inputs are the signals or data sent to the s4stem, and outputs are the signals or data sent 64 the s4stem to the outside5 E3a%'es "! "ut%ut devices) •

S%ea.ers



'age 4 o( 20


Computer speakers range *idel4 in .ualit4 and in price5 The computer speakers t4picall4 packag packaged ed *ith *ith comput computer er s4stem s4stems s are are small, small, plasti plastic, c, and have have medi medioc ocre re

soun sound d

.uali ualit4 t455

%ome ome

comp comput uter er

spea speak kers ers

hav have

e.uali7ation (eatures such as 6ass and tre6le controls5

-ead%$"nes



-ead%$"nes are

a

pair

o(

small loudspeakers, loudspeakers,

or

l e ss

comm commonl onl4 4 a sing single le spea speake kerr, held held clos close e to a user users s ears and ears and connected

to

a

signal

source

such

as

an

audio

ampli(ier, ampli(ier, radio, radio, CD pla4er pla4er or or porta6le porta6le media pla4er5 pla4er5 The4 are also kno*n as stere" %$"nes, %$"nes, $eadsets or, $eadsets or, collo.uiall4 cans5 cans5 The in/ear versions are kno*n as ear %$"nes or ear +uds5 +uds5 In the conte8t o( telecommunication, telecommunication, the term headset is used to descri6e a com6ination o( headphone and microphone used microphone used (or t*o/*a4 communication, communication, (or e8ample *ith a telephone5 telephone5 Screen 5M"nit"r6





a visu visua' a'

! "nit"r or "nit"r or dis%'a* Asometimes dis% dis%'a 'a* *

unit unitBB

is

an elect electro ronic nic

calle lled visua visuall

displa4 (or displa4 (or computers5 computers5 The The moni monito torr comp compri rise ses s the the disp displa la4 4 devic evice, e, circuitr4, circuitr4, and an encl nclosure ure5 The displa4 device in modern monitors is t4picall4 a thin (ilm (ilm transis transistor tor li.uid li.uid cr4sta cr4stall displa displa4 4 ATFT/L ATFT/LCDB CDB thin panel, *hile older monitors use a cathode ra4 tu6e a6out as deep as the screen si7e5 

The (irst (irst compute computerr monito monitors rs used used Cathode

ra4 tu6es ACTsB, tu6es ACTsB, *hich *as the dominant technolog4 until the4 *ere replaced 64 LCD monitors in monitors in the 0+st Centur45 

Originall4

computer

monitors

*ere

used

(or data data

proc proces essi sing ng *hile *hile television

receivers *ere receivers *ere used (or entertainment5 From the ?s on*ards, computers have 6een used (or 6oth data processing and entertainment, *hile televisions have implemented some Learning #uide +st e evision


'age 7 o( 20


comput computer er (uncti (unctiona onalit lit4 45 The common common aspect aspect ratio ratio o( tele televi visi sions ons,, and and then then comp comput uter er monitors, has also changed (rom 1)2 to +<)@5



&rinter In computing, computing, a printer is a peripheral *hich peripheral *hich produces a te8t andor graphics o( documents stored in electronic (orm, electronic (orm, usuall4 on ph4sical print media such as paper or transparencies5 Man4 printers are primaril4 used as local peripherals, and are attached 64 a printer ca6le or ca6le or,, in most ne*er printers, a &% ca6le &% ca6le to a computer *hich serves as a document source5 %ome print inters ers,

commonl4 nl4

kno*n

as netw networ ork k

print printer ers s,

have

6uilt/in net*ork inter(aces, net*ork inter(aces,

t4picall4 *ireless andor *ireless andor Ethernet 6ased, Ethernet 6ased, and can serve as a hard cop4 device (or an4 user on the net*ork net*ork55 Indivi Individua duall printe printers rs are o(ten o(ten design designed ed to suppor supportt 6oth 6oth loc local al and net*or net*ork k connected users at the the same time5 In addition, a (e* modern printers can directl4 directl4 inter(ace to electr electronic onic media such as memor4 memor4 cards, cards, or to imag image e capt captur ure e devi device ces s such such as digital cameras, cameras, scannersK scannersK some printers are com6ined *ith a scanners andor (a8 machines (a8 machines in a single unit, and can (unction as photocopiers5 photocopiers5 'rinters 'rinters that include non/printing non/printing (eatures are sometimes sometimes called multi(unction multi(unction printers printers AMF'B, AMF'B, multi/(unct multi/(unction ion devices AMFDB, AMFDB, or all/in/one all/in/one A!IO A!IOBB prin printe ters rs55 Mo Most st MF's MF's inclu include de printing, printing, scann scannin ing, g, and and cop4 cop4in ing g amon among g their their man4 man4 (eatures5

T$e &r"cess"r

The &r"c r"cess"r

"r

t$e

cent centra ra''

%r"c %r"ces essi sing ng

unit unit A AC&U C&UBB

is

the

portion

o(

a computer s4stem that carries out the instructions instructions o( o( a computer program, program , to per(orm the 6asic arithmetical, logical, and inputoutput operations o( the s4stem5 The C'& pla4s a role some*hat Learning #uide +st e evision


'age 8 o( 20


analogous to the 6rain 6rain in in the computer5 The term has 6een in use in the computer industr4 at least least since the earl4 +@<s5 +@<s5

The (orm, design design and impleme implementa ntatio tion n o( C'&s have have change changed d

dramaticall4 since the earliest e8amples, 6ut their (undamental operation remains much the same5

On larg large e mach machin ines, es, C'&s C'&s re.u re.uir ire e one or more more print printed ed circ circuit uit 6oar 6oards ds55 On pers person onal al computers and small *orkstations, the C'& is housed in a single chip called a microprocessor5 %ince the +@>s the microprocessor class o( C'&s has almost completel4 overtaken all other C'& implementations5 Modern C'&s are large scale integrated circuits in small, rectangular packages, *ith multiple connecting pins5 T*o t4pical components o( a C'& are the arithmetic logic unit A!L&B, *hich per(orms arithmetic and logical operations, and the control unit AC&B, *hich e8tracts instructions (rom memor4 and decodes and e8ecutes them, calling on the !L& *hen necessar45 E8ample o( 'rocessors are) 'entium 1, Core Duo, Duo, Dual Core, Core i2, Core i-, Corei>

T$e St"rage devices C"% C" %ut uter er data data st"ra st"rage ge,,

o(te o(ten n

call called ed st"rage or st"rage or e"r*, e"r*,

re(e e(ers

to

computer

components components and recording recording media that that retain retain digita digitall data5 data5 Data Data stor storag age e is on one e o( the the core core (unctions and (undamental components o( computers5 There are 2 t4pes o( storage devices) +5 &riar* St"rage 3 St"rage 3 is also kno*n as the ain e"r* or e"r* or a temporar4 storage device5 device5

It is (ast (ast in nature nature 6ut can can accommoda accommodate te onl4 (e* (e* data5 data5

Data that has has

6een stored in memor4 (lushes o(( *hen 4ou restart 4our computer, thus called temporar4 storage device5



'age 9 o( 20


It is the onl4 one directl4 accessi6le to the C'&5 The C'& continuousl4 reads instructions stored there and e8ecutes them as re.uired5 !n4 data activel4 operated on is also stored there in uni(orm manner5

05 Sec"ndar* St"rage 3 Sec"ndar* st"rage st"rage Aalso kno*n as e8ternal memor4 or au8iliar4 storageB, di((ers (rom primar4 storage in that it is not directl4 accessi6le 64 the the C'&5 C'&5 The com computer uter usua usuall ll4 4 uses uses its its inputoutput chan channe nels ls to acce access ss secon seconda dar4 r4 stor storag age e and and tran trans( s(er ers s the the desir desired ed data data using using intermediat intermediate e area in area in primar4 storage5 %econdar4 storage does not lose the data *hen the device is po*ere po*ered d do*nit do*nit is non/vo non/volat latile5 ile5 Exampl Examples es of a seconda secondary ry sto storag rage e device device are Internal Hard drive, external Hard Drive, Flash Disk, CD/DVD, Floppy disk, emory card!

25 Tertiar* St"rage / St"rage / Tertiar* st"rage or st"rage or tertiar* e"r*, e"r*, provides a third level o( sto stora rage5 ge5 T4picall4 picall4 it involv involves es a ro6oti ro6otic c mechan mechanism ism *hich *hich *ill *ill mount mount Ainser AinsertB tB and dismount remova6le mass storage media into a storage device according to the s4stems s4stems demandsK this data is o(ten copied to secondar4 storage storage 6e(ore use5 It is primaril4 used (or archiving rarel4 accessed in(ormation since it is much slo*er than seconda secondar4 r4 sto stora rage ge Ae5g5 Ae5g5 -3< -3< second seconds s vs5 +3+ +3+ millis millisecon econdsB dsB55 This is primar primaril4 il4 use(ul (or e8traordi e8traordinaril4 naril4 large data stores, accessed *ithout *ithout human operators5 operators5 T4pical T4pical e8amples include tape li6raries and li6raries and optical 9uke6o8es5 9uke6o8es5



'age 1: o( 1: o( 20


Hhen a comput computer er needs needs to read read in(orm in(ormati ation on (rom (rom the tertiar4 storage, it *ill (irst consult a catalog data6ase to data6ase to determine *hich tape or disc contains the in(ormation5 Ne8t, the computer *ill instruct a ro6otic arm to arm to (etch the medium and place it in a drive5 Hhen the computer has (inishe (inished d readin reading g the in(orm in(ormati ation, on, the ro6oti ro6otic c arm *ill *ill return the medium to its place in the li6rar45 li6rar45

C"nnectivit* devices

The ma9orit4 o( e8ternal peripheral devices connect to the 6ack o( the computers s4stem unit *ith ca6les5 The computers s4stem unit has a variet4 o( %"rts availa6le %"rts availa6le (or use 64 di((erent peripheral device ca6les5 ! port is a socket that is used to connect the ca6les (rom peripheral devices to the computer5 computer5

Computer connectivit4 devices *ere grouped into several categories) &"rts

'orts at the 6ack o( a computer

'o*er suppl4

There e8ist several t4pes o( ports like serial port, parallel port, &% port, !#' port, po*er suppl4 port5 !s the name suggests, the seria' %"rt trans(ers %"rt trans(ers data seriall4 a 6it at a time5 !s a result, the serial port needs onl4 *ire to transmit ? 6its5 The disadvantage is that it takes ? times longer to transmit a 64te5 !lso, it is necessar4 to send a start 6it 6e(ore each 64te o( data, a stop 6it a(ter the 64te to mark the end o( 64te and a parit4 6it to help check the integrit4 o( data5 %erial ports come in the (orm o( @/pin or 0-/pin male connector5 %erial ports are o(ten kno*n as communication ports or %020C ports5 The4 are t4picall4 used to connect devices like "'d "use and "use and modem5 Learning #uide +st e evision


'age 11 o( 11 o( 20


&ara''e' %"rts can %"rts can send or receive a 64te A?/6itB at a time5 &nlike the serial port, these ?/6its are transmitted parallel to each other5 'arallel ports come in the (orm o( 0-/pin (emale connector5 'arallel ports are popularl4 used to connect printer, scanner, CD *riter, 7ip drive, e8ternal hard disk drive, tape 6ackup drive, etc5

To spare the user 6otheration o( ?/pin, 0-/pin, male, (emale connectors, the US; has 6een designed5 It gives 4ou a single, standardi7ed, eas4/to/use *a4 to connect up to +0> devices to a computer5 These devices include printers, scanners, mice, 9o4stick, digital camera, *e6 cameras, speakers, telephones, 7ip drives, net*ork connections, scienti(ic data ac.uisition devices, etc5

The AG& 5Acce'erated Gra%$ics &"rt6 %"rt %"rt is used to connect to graphic card that provid provides es high/s high/spee peed d video video per(or per(orma mance nce t4pical t4picall4 l4 re.uir re.uired ed in games games and other other multim multimedia edia applications5



'age 1 o( 1 o( 20


!lternativel4 re(erred to as an Et$ernet %"rt, %"rt, the LAN %"rt is %"rt is a port connection that allo*s a computer to connect to a net*ork using a *ired connection5 In the picture to the right, is a close up e8ample o( *hat a L!N port looks like (or a net*ork ca6le using an /1connector5 connector5 In the case o( this e8ample, the t*o led lights *ill 6link *hen that port is active and receiving activit45 activit45

The &S< c"nnect"r is c"nnect"r is a 5 The '%0 mouse connector generall4 replaced the older DE/@ %/020 serial %/020 serial mouse connector, *hile the '%0 ke46oard connector replaced the larger -/pin+? DIN connector used connector used in the IM 'C!T design5 The '%0 designs on ke46oard and mouse inter(aces are electricall4 similar and emplo4 the same commun communica icatio tion n protoc protocol5 ol5 "o*eve "o*everr, a given given s4stem s4stems s ke46oa ke46oard rd and mouse mouse port port ma4 ma4 not 6e interchangea6le since the t*o devices use a di((erent set o( commands5 Toda4 this connector has all 6ut 6een replaced 64 &%

! %"(er su%%'* is su%%'* is a device that supplies electrical energ4 to one or more electric loads5 loads5 The term is most commonl4 applied to devices that convert one (orm o( electrical energ4 to another, another, though it ma4 also re(er to devices that convert another (orm o( energ4 Ae5g5, mechanical, chemical, solarB to electrical energ45 ! regulated po*er suppl4 is one that controls the output voltage or current to a speci(ic valueK the controlled value is held nearl4 constant despite variations in either load current or the voltage supplied 64 the po*er suppl4s energ4 source5 Learning #uide +st e evision


'age 1/ o( 1/ o( 20


Ever4 po*er suppl4 must o6tain the energ4 it supplies to its load, as *ell as an4 energ4 it consumes *hile per(orming that task, (rom an energ4 source5

! Vide" Gra%$ics Arra* 5VGA6 c"nnect"r is c"nnect"r is a three/ro* +-/pin DE/+- connector5 DE/+- connector5 The +-/pin V#! connector is (ound on man4 video cards, computer monitors, and some high de(inition televisionsets5 televisionsets5 On laptop computers or other small devices, a mini/V#! port mini/V#! port is sometimes used in place o( the (ull/si7ed V#! connector5 Terina's

! c"%uter terina' is terina' is an electronic or electromechanical hard*are device hard*are device that is used (or entering data into, and displa4ing data (rom, a computer or computer or a computing s4stem5 computing s4stem5

The (unction o( a terminal is con(ined to displa4 and input o( dataK a device *ith signi(icant local programma6le data processing capa6ilit4 ma4 6e called a smart terminal or (at client5 client5 ! terminal that depends on the host computer (or its processing po*er is called a dum6 terminal or terminal or thin client5 client5 ! personal computer can run so(t*are that emulates the emulates the (unction o( a terminal, sometimes allo*ing concurrent use o( local programs and access to a distant terminal host s4stem5 s4stem5 T*%es "! te3t terina's



'age 10 o( 10 o( 20


The S*ste c"ns"'e is a te8t terminal used to operate a computer5 Modern computers have a 6uilt/in ke46oard and displa4 (or the console5 %ome &ni8/like operating &ni8/like operating s4stems such as Linu8, Linu8, Free%D and Free%D and Mac O% J have J have virtual consoles to consoles to provide several te8t terminals on a single computer5

! terina' eu'at"r is eu'at"r is a computer program in a graphical *indo*ing s4stem that lets the user operate a te8t terminal in a *indo*5 This lets applications (or te8t terminals run under a modern graphical user inter(ace5 inter(ace5 'opular terminal emulators include xterm include xterm and and rxvt 5

C"nnect"rs •

•


CAT2 NETORK CA;LE / CA;LE / This ca6le allo*s the computer to communicate to other computers over a net*ork5 It also provides net*orked computers access to the Internet

MONITOR CA;LE / CA;LE / This ca6le is usuall4 permanentl4 connected to a monitor5 %mall scre*s hold the ca6le in place


'age 12 o( 12 o( 20


US; CA;LE / CA;LE / Most 'Cs no* have these (ast and versatile ports on the (ront and 6ack5 The4 can 6e used (or porta6le storage devices, digital cameras, scanners, video cameras, printers, ke46oards and mice / 9ust a6out ever4thingP e ver4thingP

•

•

•

•

&OER CORD / CORD / This is a standard kettle cord that connects the computer to the !C outlet on the *all and the po*er suppl4 o( the computer5 This M&%T 6e unplugged i( 4ou are ever doing an4 maintenance main tenance *ork inside the computer5

&RINTER CA;LE / CA;LE / This is a 0-/pin D shaped connector that connect printers to the parallel port on a computer5 ANe*er printers ma4 connect *ith a &% & % plug5B

&S CA;LE / CA;LE / On most computers these da4s, this connection is used (or 6oth the Mouse and the ke46oard5 This plug has < pins/




VGA CA;LE 3 CA;LE 3 This is use to connect the monitor to the V#! port5


'age 14 o( 14 o( 20




Se'!,C$ec. 1

ritten Test

Name:____________________ Instruction: Answer

AUDIO CA;LE 3 CA;LE 3 This is use to connect the speaker to the !udio port5

Date:_________________

all all the questions questions listed listed below, below, if you have have some clarificationsclarifications- feel free to ask your your teacher. teacher.

+5 Hhat do 4ou 4ou call the e8ternal e8ternal or tangi6le tangi6le devices *hich *hich are attached attached to the e8ternal e8ternal part o( the computerQ (1 point) 05 Hhat is the small program that tells the computer ho* to communicate *ith inputoutput inputoutput AperipheralB devices5 (1 point) 25 #iven the di((erent computer computer peripherals, peripherals, group them 64 *riting each each o( it *here categories categories the4 6elong on the ta6le 6elo*) (1 point each) a5 Mouse e5 %erial ca6le i5 LCD Monitor 65 Mo Monitor (5 'rinter 95 '%0 ca6le c5 Core i2 chip g5 %c %canner k5 Dual Core chip d5 'rinter Ca6le h5 %peaker l5 e46oard

Input Devices

Output Devices

'rocessors

Connectivit4 Devices

15 Match the connectivit4 devices *ith its corresponding corresponding ports 64 dra*ing dra*ing a line (rom the connectivit4 devices to the matching ports) (2 points each)

C" C"nnectivit* Devices

&"rts

C!T- Net*ork Ca6le

Monitor Ca6le



'age 17 o( 17 o( 20


&% Ca6le

'rinter Ca6le

'%0 Ca6le

Note: Satis!act"r* rating = : %"ints %"ints a+"ve < Unsatis!act"r* , +e'"( : %"ints $ou can ask 4ou teacher (or the cop4 o( the correct ans*ers

In!"rati"n S$eet 

C"n!ir C'ient Re>uireents

S*ste deve'"%ent 'i!e c*c'e

To determine appropriate hard*are peripheral devices needed *ithin an organi7ation, it is important to clearl4 understand *hat 4our client needs5 O(ten clients dont have a clear idea o( *hat the4 *ant until the4 have 6een presented *ith a series o( options5 Horking out clients needs re.uires care(ul planning and organisation5 The s*ste deve'"%ent 'i!e c*c'e is c*c'e is a methodolog4 that computer consultants o(ten (ollo* to help them properl4 investigate the clients in(ormation technolog4 needs5 The (irst three stages o( the s4stem development li(e c4cle are) +5 planning 05 anal4sing 25 designing5 &'anning This stage involves identi(4ing the clients current technolog4 and taking into account an4 limitations5 During the planning phase it is necessar4 to (ind out in(ormation including) •

s4stem speci(ications

•

connections availa6le

•

6udget constraints

•

availa6le time(rame



'age 18 o( 18 o( 20

Misrak TVET College Training, Teaching and Learning Materials Development •

availa6ilit4 o( ph4sical space5

! !easi+i'it* stud* can stud* can 6e per(ormed to provide a preliminar4 report to the client a6out 6ene(its, costs and impact to the organisation5 !dditionall4, a %r"?ect re>uest !"r allo*s !"r allo*s a client to document their initial re.uest5 S*ste s%eci!icati"ns It is important to (ind out the speci(ications o( the computer s4stem 4ou are planning to connect the peripheral device to5 Man4 ne*er t4pes o( peripheral devices re.uire a speci(ic amount o( memor4, C'& C'& speed, hard disk space, and ma4 onl4 on l4 6e compati6le *ith certain operating s4stems5

@"u a's" need t" +e a(are "! t$e %eri%$era's s*ste re>uireentsB T$e anua' !"r t$e %eri%$era' device as (e'' as t$e anu!acturers (e+site (i'' $e'% *"u deterine t$e iniu s*ste s%eci!icati"nsB

C"%uter %eri%$era's re>uireent c"nsiderati"ns Desktop hard*are, such as a desktop computer itsel(, is the most common t4pe o( IT hard*are purchased 64 a small 6usiness5 The cost co st o( hard*are depends on its speci(ication, *hich in turn is determined 64 some ke4 components5 Hhen 4ou 6u4 desktop hard*are, 4ou *ill need to decide *hat the speci(ication o( these ke4 components should 6e5 T$e %r"cess"r is %r"cess"r is the driver o( the computer5 'rocessors are usuall4 di((erentiated 64 speed, measured in gigahert7 A#"7B5 The higher the #"7, the (aster the computer *ill run5 $ou should 6u4 the (astest processor 4ou can a((ord, 6ut a " #H$ processor will normally %e eno&gh for most %&siness f&nctions, e!g! e !g! word processing and spreadsheets, together with some m<imedia! Me"r* is Me"r* is used 64 the th e processor to run programs5 #enerall4, the more random access memor4 A!MB 4ou have, the 6etter 4our computer *ill run *hen using several programs at once5 $our computer should have enough memor4 to make the most o( the processor speed5 spee d5 For a " #H$ processor, for example, yo& sho&ld have aro&nd '(" giga%ytes )#*+ of -! T$e $ard dis. is dis. is used to store the data 4ou create in 4our 6usiness, as *ell as the programs 4ou use5 Its capacit4 is much greater than the !M5 !n o((ice computer *ith a 2 #"7 processor should have at least 0 # o( hard disk space, 6ut i( 4ou intend to use a single desktop 'C as the main storage location (or all 4our 6usiness data, 4ou *ill need at least - #5



'age 19 o( 19 o( 20


E8ternal plug/ins, such as re(rita+'e DVD DVD,Read On'* Me"r* 5ROM6 "r CD, R 5re(rita+'e6 drives can drives can 6e used to supplement 4our computers memor45 T$e "nit"r is "nit"r is the computers displa4 screen5 Li.uid Cr4stal Displa4 ALCDB or (lat screen monitors o((er reduced 6ulk and lo*er po*er con sumption, relative to cathode ra4 tu6e ACTB monitors5 Monitors are normall4 measured diagonall4 i n inches / t4picall4 +@, 00 or 015 Larger or *ide/screen monitors allo* 4ou to compare t*o documents on/screen5 Man4 monitors have an aspect ratio / the proportion o( image *idth to height / o( +<)+, although screens *ith a +<)@ ratio are 6ecoming more *idel4 availa6le and o((er higher resolution5 Dis%'a* ada%ter %o(t*are re.uiring a 6etter than average computer graphics displa4, graphics displa4, like graphics editors and editors and high/end games games,, o(ten de(ine high/end displa4 adapters in adapters in the s4stem re.uirements5

S"!t(are re>uireents %o(t* %o( t*are are e.ui e.uirem rement ents s deal deal *ith *ith de(inin de(ining g so( so(t* t*ar are e resour resource ce re.uir re.uireme ements nts and pre/ pre/ re.u re.uis isit ites es that that need need to 6e insta install lled ed on a comp comput uter er to prov provid ide e opti optima mall (unc (uncti tioni oning ng o( an applicatio application5 n5 These re.uirements re.uirements or pre/re.uisi pre/re.uisites tes are generall4 generall4 not included in the so(t*are installation package and need to 6e installed separatel4 6e(ore the so(t*are is installed5 1B &'at!"r In computing computing,, so(t*are,, so(t*are

*hic hich

a %'at!"r desc descri ri6e 6es s

allo*s

so(t*are

to

some some sort sort o( (rame*ork (rame*ork,, run5 un5

T4pical

plat lat(orms

eit either in hard*are hard*are or or

includ lude

a

comp omputers

architecture,, operating s4stem, architecture s4stem, or programming languages and languages and their run time li6raries5 time li6raries5 Operating Oper ating s4stem is one o( the the (irs (irstt re.u re.uir irem ement ents s menti mention oned ed *hen *hen de(i de(inin ning g s4st s4stem em re.uirements Aso(t*areB5 %o(t*are ma4 not 6e compati6le *ith di((erent versions o( same line o( operating operating s4stems, although some measure o( 6ack*ard 6ack*ard compati6ilit4 compati6ilit4 is o(ten maintained5 maintained5 For e8ample, most so(t*are designed (or Microso(t Hindo*s J' does J' does not run on Microso(t Hindo*s @?,, although the converse is not al*a4s true5 %imilarl4, so(t*are designed using ne*er (eatures @? o( Linu8 ernel ernel v05< v05< generall4 does not run or compile properl4 Aor at allB on Linu8 distri6utions using ernel v050 or v0515

B A&Is and drivers %o(t %o (t*a *are re maki making ng e8tens e8tensiv ive e use use o( speci special al hard hard*a *are re devi devices ces,, like like high high/e /end nd displa4 adapters,, needs special !'I or ne*er adapters ne*er device device driver drivers5 s5 ! good good e8ampl e8ample e is DirectJ DirectJ,, *hich is a Learning #uide +st e evision


'age : o( : o( 20


collect col lection ion o( !'Is !'Is (or handli handling ng tasks tasks relate related d to multim multimedi edia, a, especi especiall all4 4 game game progr programm amming ing,, on Microso(t Microso(t plat(orms5 plat(orms5 /B e+ +r"(ser Most *e6 applications and applications and so(t*are depending heavil4 on Internet technologies make technologies make use o( the de(ault 6ro*ser installed on s4stem5 Micros Microso(t o(t Inter Internet net E8plo E8plorer rer is is a (re.uent choice o( so(t* so( t*ar are e runnin running g on Micros Microso(t o(t Hindo*s, Hindo*s, *hich *hich makes makes use o( !ctiveJ controls, controls, despite despite their vulnera6ilities5

Ot$er re>uireents %ome ome

so(t so(t* *are

also lso

has has

othe otherr

re.u re.uir irem emen ents ts

(or

prop proper er

per( er(orma ormanc nce5 e5 Internet

connection At4pe connection At4pe and speedB and resolution resolution o( o( the displa4 screen are nota6le e8amples5 E8amples Follo*ing are a (e* e8amples o( s4stem re.uirement de(initions (or popular 'C games and games and trend o( ever increasing resource needs) For instance, *hile %tarCra(t %tarCra(t A+@@?B A+@@?B needed) 

Hindo*s @Hindo*s @- or NT or superior



'entium processor 'entium processor at @ M"7 or higher



+< M !M



? M availa6le in the hard disk



CD/OM,, 08 or higher CD/OM



DirectJ 25 DirectJ 25 or higher

%pider/Man A00B %pider/Man A00B needed) 

2D "ard*are !ccelerator



Hindo*s @?0NTJ' Hindo*s @?0NTJ'



'entium III processor III processor at - M"7 or higher h igher



+0? M !M



+5- # availa6le in the hard disk



'age 1 o( 1 o( 20

Misrak TVET College Training, Teaching and Learning Materials Development 

DirectJ ?5+ DirectJ ?5+ Doom 2 A01B 2 A01B needed)



2D "ard*are !ccelerator / <1M o( memor4 minimum



Hindo*s 0J' Hindo*s 0J'



'entium 1 +51 +5- #"7 or !thlon J' +-R J' +-R processor or higher



2?1 M !M



?8 %peed CD/OM



050 # (ree hard disk space disk space



DirectJ @56 DirectJ @56 compati6le +


DirectJ @56

%tar Hars) The Force &nleashed A0@B &nleashed A0@B needed) 

2D "ard*are !ccelerator / 0-


Hindo*s Hindo*s Hindo*s Hindo*s J' %'2, Hindo*s Vista %'0, Hindo*s >



Core 0 Duo or Duo or !thlon J0 at J0 at 051 #"7



0 # !M !M



?8 %peed DVD/OM



025? # R + # %*ap File hard disk space disk space



DirectJ @5c DirectJ @5c compati6le sound card



DirectJ @5c DirectJ @5c compati6le video card5 card5

!s a cost/saving consideration, (or a small enterprise, getting the e8act client speci(ications *ould 6e a good consideration 6ut (or a 6ig enterprise, getting the high end hard*are *ould 6e o( great choice5 Considering the (uture hard*are hard*are trend *ould also 6e a deciding (actor5 (actor5 I( the price o( a speci(ic peripheral remains the same (or a long period o( time, 4ou could consider 6u4ing a high end one since over time the price remains the same *hile 4ou get a higher hard*are per(ormance5 Other*ise, choose a medium range peripherals or 9ust e8actl4 *hat 4our organi7ation need since (or a short period o( time the price lo*ers so 4ou could have an opportunit4 o( upgrading it to a high end one in the (uture at a lo* cost5 !nother (actor is *hat operating operating s4stem are 4ou going to useQ useQ elo* are the hard*are hard*are re.uirements (or installing Hindo*s J' and Hindo*s >) -ard(are Re>uireents !"r ind"(s 7 s*ste I( 4ou *ant to run Hindo*s > on 4our 'C, heres *hat it takes) Learning #uide +st e evision


'age  o(  o( 20


+ gigahert7 A#"7B or (aster 20/6it A8?
• • • •

-ard(are Re>uireents !"r ind"(s & -"e Editi"n and ind"(s & &r"!essi"na'B These are the minimum re.uirements (or 6asic (unctionalit45 !ctual re.uirements var4, depending on the s4stem con(iguration and the programs and (eatures that 4ou choose to install5 I( 4ou are installing Hindo*s J' over a net*ork, 4ou ma4 need additional availa6le hard/disk space5

• • • • • • • •

T$e iniu $ard(are re>uireents !"r ind"(s & -"e Editi"n ar e) 'entium 022/megahert7 AM"7B processor or (aster A2 M"7 is recommendedB !t least <1 mega64tes AMB o( !M A+0? M is recommendedB !t least +5- giga64tes A#B o( availa6le space on the hard disk CD/OM or DVD/OM drive e46oard and a Microso(t Mouse or some other compati6le co mpati6le pointing device Video adapter and monitor *ith %uper V#! A? 8 <Bor higher resolu tion %ound card %peakers or headphones

!(ter 4ou have determine 4our organi7ation needs, 4ou can no* start documenting 4our hard*are needs, to help 4ou decide on the speci(ications, canvassing *ould 6e a great idea5 There *ere several sites in the net *here 4ou can 6ro*se and compare the price o( the di((erent medium range to high end computer computer peripherals5 One 64 one 4ou can list do*n the hard*are hard*are specs (or 4our client5 The list 6elo* *ill help 4ou in documenting 4our 4our chosen hard*are) hard*are) 'rocessor ) !M or or Memor4 Memor4 ) "ard Di Disk si si7e ) Video Card ) Lan Card ) DVD drive ) %ound Card ) Mouse ) e46oard ) Monitor ) One deciding (actor to consider consi der in 6u4ing computer peripherals is the *arrant4 *arrant4 and a(ter sales support service5 ! cheaper price *ould var4 var4 greatl4 on the per(ormance, per(ormance, dura6ilit4 and *arrant45 *arrant45 Mostl4, the cheaper it gets, the less dura6le and less *arrant4 4ou could e8pect5 O(tentimes, the good *arrant4 and a(ter sales service the4 provide, the 6etter the .ualit4 o( the products the4 have5 Do not risk 6u4ing the cheaper one i( 4oure 4oure not sure o( the .ualit45 .ualit45 Learning #uide +st e evision


'age / o( / o( 20


!(ter 4ou have (inali7ed 4our hard*are speci(ications, 4ou can no* (or*ard it to the right person (or 6udget considerations and (inall4 (or procurement5

;udget c"nstraints Hhile planning the connection o( hard*are peripheral devices, it is important to 6e a*are o( the clients availa6le 6udget5 ! client needs to determine *hether the 6ene(its that *ill 6e gained (rom the peripheral device 9usti(4 the (inancial outla45 Factors including the organisations si7e, the necessit4 o( the peripheral peripheral device to the organisation, organisation, num6er o( people people re.uiring re.uiring the device, *ill all contri6ute to the organisations allocation o( a 6udget5 Costs *ill sometimes prohi6it an organisation (rom proceeding *ith the purchase o( e.uipment5

!nothe !notherr cos costt to consider consider is ongoin ongoing g mainte maintenan nance5 ce5 ! laser laser printer printer,, (or e8ampl e8ample, e, ma4 initiall4 6e more e8pensive to purchase than an ink9et printer5 "o*ever *hen 4ou consider that some ink9et cartridges can cost nearl4 as much as an ink9et printer, it ma4 6e more practical to choose a laser l aser printer, *here toner costs are more reasona6le5 Avai'a+'e tie!rae The time availa6le to complete a task also needs to 6e considered *hen identi(4ing client re.uirements5 I(, (or e8ample, a peripheral device is needed urgentl4, it *ill 6e necessar4 to .uickl4 (ind out *hich suppliers su ppliers can immediatel4 provide the peripheral e.uipment5 &$*sica' s%ace restricti"ns e(ore considering ac.uiring an4 peripheral device, planning needs to 6e done to *ork out *here and ho* the peripheral *ill reside5 The (ollo*ing .uestions need to 6e considered) •

Hhat ph4sical space is availa6le to accommodate the deviceQ

•

!re po*er points in a near pro8imit4 i( the device needs themQ I( a peripheral does not have access to a suita6le po*er source, pro6lems ma4 occur including the overloading o( po*er 6oards and po*er leads causing dangerous o6structions to users o( the e.uipment5 e.uipment5

•

Hill the installation o( the device mean other e.uipment needs to 6e relocatedQ

•

Could the device cause disruption or impact on the sa(et4 o( usersQ

easi+i'it* stud* ! (easi6ilit4 stud4 can 6e carried out to sho* the client 6ene(its, appro8imate costs o( the ne* e.uipm e.uipment ent and the impact impact on the organi organisat sation5 ion5 %evera %everall hard* hard*are are devices devices can also also 6e recommended to the client5 The aim o( the (easi6ilit4 stud4 is to recognise the 6est solution under the circumstances 64 identi(4ing the e((ects o( this solution on the organisation5 Learning #uide +st e evision


'age 0 o( 0 o( 20


!(ter !(ter undert undertaki aking ng a (easi6 (easi6ili ilit4 t4 stud4 stud4,, it ma4 6e discov discovere ered d that that a simple simple sol soluti ution on is possi6le5 Take the e8ample o( an organisation that *ould like to update their monitors so that the4 can have 6etter screen resolution5 Changing the monitors internal settings could 6e a ver4 simple solution to o6tain an improved resolution5 ! (eas (easi6 i6il ilit it4 4 stud4 stud4 can can also also revea reveall that that a clien client ts s peri periph pher eral al re.u re.uir irem ement ents s are are not achieva6le5 The re.uirements ma4 e8ceed 6udget, or the re.uested peripheral devices ma4 not 6e compati6le *ith the current computer s4stem5 The results o( a (easi6ilit4 stud4 can determine *hether or not an organisation proceeds *ith the purchase and installation o( the peripheral devices5

&r"?ect re>uest !"r !n initial re.uest (or hard*are peripheral devices can 6e documented using a pro9ect re.u re.ues estt (orm (orm55 This This (orm (orm docu docume ment nts s in(or in(orma mati tion on (rom (rom 6oth 6oth the the clie client nt and and the the comp comput uter er consultant in order to document preliminar4 re.uirements5 T4pical T4pical in(ormation re.uested on a pro9ect re.uest (orm includes) •

pro9ect title

•

date received

•

completion date

•

pro9ect num6er

•

description o( pro6lem

•

o69ectives

•

anticipated 6ene(its

•

person re.uesting

•

constraints5



'age 2 o( 2 o( 20


Sa%'e %r"?ect re>uest !"r e.uest date)

e.uired completion date)

Re>uest in!"rati"n) irst nae)

Last nae)

De%artent "r divisi"n)

Te'e%$"ne)

Eai')

&r"?ect tit'e)

&r"?ect in!"rati"n) Hhat is the purpose o( the proposed pro9ectQ

Hhat are the 6ene(its o( the pro9ectQ

Other in(ormation or comments)



'age 4 o( 4 o( 20


Ana'*Fing

In the anal4s anal4sis is phase, phase, the client clients s re.uir re.uireme ements nts are are invest investiga igated ted in more more depth5 depth5 It is important to tr4 to gain as much in(ormation (rom the client as possi6le, in order to o6tain an accurate understanding o( the situation5 Detailed client re.uirements, such as) •

speci(ic (eatures o( the device re.uired

•

the num6er o( people *ho *ill need to use device

•

support e8pectations

•

training re.uirements

can all 6e o6tained during this phase5

Inte Interv rvie ie*s *s,, .ues .uesti tion onna nair ires es,, chec checkl klis ists ts and and o6se o6serv rvat atio ions ns are are some some meth method ods s that that consult consultant ants s use to gather gather in(orma in(ormatio tion5 n5 I( a device device is to 6e used 64 a large large group group o( users, users, a .uestionnaire or checklist could 6e constructed to (ind out *hat (eatures are re.uired 64 the ma9orit4 o( users5 Intervie*ing users can provide a 6etter *a4 o( (inding out speci(ic in(ormation5 Intervie(s ! *ell/prepared intervie* can help provide 4ou *ith valua6le in(ormation a6out 4our client re.uirement re.uirements5 s5 In(ormation In(ormation that has 6een collected during the planning planning stage can also give 4ou some use(ul 6ackground in(ormation *hen preparing .uestions5 Guestions asked o( a client ma4 6e speci(ic or open ended5 %peci(ic .uestions generall4 mean mean that that the client client *ill *ill give give either either a 4esno 4esno respon response se or a speci( speci(ic ic ans*er ans*er55 Open/end Open/ended ed .uestions, ho*ever, generall4 commence *ith Sho* or S*h45 These t4pes o( .uestions help to discuss and clari(4 issues and esta6lish a (irmer understanding o( client re.uirements5 For e8ample, some .uestions 4ou ma4 *ant to ask during an intervie* to replace an e8isting printer could include) •

"o* *ill a ne* printer solve e8isting printer issuesQ

•

Hho *ill 6e using the ne* printer the ma9orit4 o( the timeQ



'age 7 o( 7 o( 20

Misrak TVET College Training, Teaching and Learning Materials Development •

Hhat *ill 6e the ne* printer ke4 purposesQ Eg) 3 letters 3 advertising 6rochures 3 in(ormation (rom the Internet5

•

Hh4 do 4ou need colour printingQ

•

Hhat is the appro8imate num6er o( pages that *ould 6e printed each da4Q

uesti"nnaires Guestionnaires are help(ul *hen 4ou need to gather in(ormation (rom a num6er o( clients5 ! num6er o( .uestions incorporating short ans*ers, multiple choice and true(alse choices can help 4ou .uickl4 determine *hat kinds o( (eatures the ma9orit4 o( clients are re.uiring5

-ere is a sa%'e >uesti"nnaire t" $e'% esta+'is$ a suita+'e "use) +5 Track6 Track6all all (eature (eature  Hould Hould a track6all track6all device device 6e help(ul help(ul (or (or 4ou to manipulat manipulate e imagesQ @es

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There *ill o(ten 6e several peripheral devices that are capa6le o( per(orming the 9o6 satis(actoril45 !n evaluation grid can 6e created to sho* the client each e ach devices (unctionalit45

The The e8am e8ampl ple e 6elo 6elo* * illus illustr trat ates es an eval evalua uati tion on grid grid that that could could 6e used used (or (or appr apprai aisi sing ng scanners5

S%eci!icati"ns

Scanner 1

Scanner 

Scanner /

'rice Optical resolution AdpiB Dimensions Operating s4stem %o(t*are included Comments

Once client re.uirement re.uirements s have 6een clari(ied, clari(ied, all re.uests re.uests (or hard*are hard*are periphera peripherals ls need to 6e docu docume ment nted ed clea clearl rl4 4 in a conc concis ise e (orm (orm55 !n orga organi nisa sati tion on *ill *ill o(te o(ten n have have its its o*n o*n organi7ati organi7ational onal standards standards A(or e8ample, e8ample, report report templates, templates, guidelinesB to *hich 4ou *ill need to adhere5 The documentation *ill also need to 6e checked and con(irmed 64 the client 6e(ore a re.uest (or purchase in sent to the pre(erred supplier5 supplier5



'age 9 o( 9 o( 20


Se'!,C$ec.  Name: ____________________ Instruction: Answer

ritten Test Date:_________________

all the questions listed below, below, if you have some clarificationsclarifications- feel free to ask your

teacher. Hhat are the three A2B stages o( the s4stem development li(e c4cleQ (3 points) In planning phase, *hat (ive A-B in(ormation is necessar4 to (ind outQ (5 points) The processors speed has 6een measured in *hatQ (1 point) "o* man4 processors speed in #"7 is needed (or most 6usiness (unctions, e 5g5 *ord processing and spreadsheets, together *ith some multimedia. multimedia. (1 point) -5 I( 4ou have 2 #"7 processors speed, ho* much ideal memor4 A!MB si7e 4ou must haveQ (1 point) !n o((ice computer *ith a 2 #"7 processor should have at least ho* man4 # o( <5 hard disk spaceQ (1 point) >5 Hhat can *e use to supplement 4our computers memor4Q (1 point) Hhich monitor is 6etter in terms o( electric consumptionQ (1 point) ?5 @5 Hhat are the 2 Software requirements needed in 6e(ore 6u4ing a 'CQ (3 points) +5 Hhat are the "ard*are e.uirements (or Hindo*s > operating s4stem in terms o() (4 point) 'rocessor ) !M or Memor4 ) "ard Disk si7e ) Video Card ) +5 05 25 15



'age /: o( /: o( 20


Satisfactory rating – 18 points above / Unsatisfactory - below 18 points ou can ask you teacher for the co!y of the correct answers

Note:

La% Test

&ractica' De"nstrati"n

Name)     Time started)   

Date) Time (inished)

    

Instructi"ns) $ou $ou are re.uired to per(orm the (ollo*ing individuall4 *ith the presence o( 4our teacher5 1B s$"(ing t$e %"rts +e'"( +e'"( de"nstrate ($at %eri%$era' (as (as needed !"r eac$ %"rt

B Nae / %"rts ($ere "use can %"ssi+'* +e c"nnected t"B /B Give at 'east 0 %eri%$era's t$at can +e c"nnected c"nnected via US; %"rtsB 0B $at is t$e di!!erence +et(een Seria' Seria' and &ara''e' %"rtsH



'age /1 o( /1 o( 20




o&r teacher will eval&ate yo&r o&tp&t either satisfactory or &nsatisfactory! If 0nsatisfactory, yo&r teacher shall advice yo& on additional work! *&t if satisfactory, yo& can proceed to the next topic!



'age / o( / o( 20

lo1

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