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Mahesh Kodituwakku
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1.
ufyaIa fldä;=jlal= BTec(ICT) ,
MCTS,MIEEE Professional Development Course in ICT (AIT-Thailand) National Dip in Teaching (Merit) mß.Klh y`ÿkd .ksuq'
2.
mß.Klhla hkq l=ula
o@
3.
mßYS,lhd úiska wdodkh
lrkq ,nk fyda moaO;sh úiska /ialr .kq ,nk o;a; ,nd f.k tu o;a; mßYS,lhd úiska § we;s Wmfoiaj,g wkqj ilia lrñka Tyqg$wehg wjYH wdldrfha f;dr;=re m%;sodkh lrk" úÿ,s n,fhka l%shd;aul jk WmlrKhla ˜f,i mß.Klh ye¢kaúh yels h' mß.Klhla hkq l=ula o@
4.
mß.Klfhys oelsh yels
úfYaI ,laIK • fõ.h (Speed) • ksrjoH;dj (Accuracy) • ld¾hlaIu;dj (Efficiency) • nyqld¾h nj ^Versatility& • iq/lSfï yd kej; ,nd .ekSfï yelshdj ^Saving and Retrieving&
5.
mß.Kl j¾.SlrKh mß.Kl m%odk
l%u folla hgf;a j¾.SlrKh l< yel' m%udKh wkqj Ndú; jk ;dlaIKh wkqj
6.
m%udKh wkqj mß.Kl
j¾.SlrKh
7.
iqmsß mß.Kl (Super
Computers)
8.
9.
uyd mß.Kl (Mainframe
Computers)
10.
uOH mß.Kl (Mini
Computers)
11.
• uyd mß.Klj,g
jvd fõ.fhka" n,fhka iy ñf,ka o wvqh • fmdÿ ld¾h mß.Kl f,i o ye¢kafõ‘ • mdõÉÑh myiq h‘ • mßYS,lhska lsysm fofkl= úiska m¾hka; (Terminals) lsysmhla u.ska th yd iïnkaO fjñka o;a; yd f;dr;=re yqjudre lr .kq ,efí'
12.
fm!oa.,sl mß.Kl$ laIqø
mß.Kl (Personal Computers/ Micro Computers)
13.
• fm!oa.,sl m%fhdackh
i|yd fhdod .efka • wvq Odß;djla iys; u;lhlska hq;=h • tfia u úÿ,s mßfNdackh o wvq h'
14.
15.
Ndú; jk ;dlaIKh
wkqj mß.Kl j¾.SlrKh
16.
17.
m%;siu $ wekf,d.a
mrs.Kl
18.
mßirfha isÿ jk
fjkia ùï ^fõ.h" fjda,aàh;dj" mSvkh" WIaK;ajh& jeks m%;siu ix{d (Analog signals) y÷kd .ksñka ta wkqj l%shd;aul jk mß.Kl ñka woyiafõ
19.
wxls;$ äcsg,aa mrs.Kl
20.
tÈfkod Ôú;fha § mßyrKh
lrkq ,nk mß.Kl ixLHdxl mß.Kl hg;g jefÜ' oaúuh ixLHd moaO;sh Ndú; lrñka l%shd;aul fõ
21.
ñY% $ fouqyqka
mrs.Kl
22.
mß.Kl moaO;sfha l%shdj,sh
23.
u;l frcsiagr wxl .Ks;uh
yd ;d¾lsl tallh md,k tallh wdodk m%;sodk m%Odk u;lh oaú;Sl u;lh uOH ieliqï tallh
24.
25.
mß.Kl moaO;shl my;
fldgia u.ska isÿjk l%shdj,sh fláfhka olajkak • wdodk • wxl .Ks;uh yd ;d¾lsl tallh • frcsiagr u;lh • md,k tallh
26.
mß.Kl moaO;shl my;
fldgia u.ska isÿjk l%shdj,sh fláfhka olajkak • m%;sodk • m%d:ñl u;lh • oaù;Sl u;lh
27.
mß.Kl moaO;shla ;ekS
we;s wdldrh
28.
mß.Klh ;ekS we;af;a
m%Odk fldgia 4 la tlaùfuks •wdodk Wmdx. •m%;sodk Wmdx. •uOH ieliqï tallh •wdphk Wmdx.
29.
wdodk Wmdx. •h;=re mqjrej" •
uQislh" • uhsfl%df*dakh" • fjí leurdj •CCTV Camera
30.
•;Srefla; lshjkh" • fufyhqï
háh" • iam¾Yl ;srh •wxls; leurdj
31.
ixLHdxl leurdj(Digital Camera) •mg,
fiahdmg (Film Negatives) Ndú; fkdfõ' •PdhdrEmh ixLHdxl wdldrfhka igyka fõ' •ksYap, yd p,k rEm o ,nd.; yelsh'
32.
iqmsßlail (Scanners)
33.
me;,s ;, iqmsßlailh (Flatbed
Scanners) •PdhdrEm$m%;smß.Kl .; lsÍug Ndú;d fõ' wlaIr mß.Kl.; lsÍfïoS (OCR-Optical Character Recoginition) ;dlaIKh Ndú;d lrhs'
34.
;Sre fla; lshjkh (Bar
Code Reader)
35.
pqïnl ;Ska; wkq,laIK
lshjkh (Magnetic Ink Character Reader - MICR)
36.
m%ldY i,l=Kq ixcdkkh
(Optical Mark Recognition - OMR)
37.
uhsfl%dfmdakh (Microphone)
38.
m%;sodk Wml%u (Output
Devices)
39.
m%;sodk Wmdx.
40.
mß.Kl moaO;sh úiska
ilia lrk ,o f;dr;=re wmg ,nd fok wdldr lsysmhlsa •uDÿ msgm;a (Soft Copy) •oDV msgm;a (Hard Copy) •Yío (Sound)
41.
nyq,j Ndú;d jk
mß.Kl ;sr j¾. 3 ls • lef;dav lsrK k, (CRT) • øj iaMál ixo¾Yl (LCD) • wdf,dal úfudapl Èfhdav Light Emiting Diode (LED) uDÿ msgm;a ,ndfok Wmdx.
42.
lef;dav lsrK k,
(CRT)
43.
lef;dav lsrK iys;
mß.Kl ;srj, ,laIK øj iaMál ixo¾Yl ;srj, ,laIK ñ, wvqh ksl=;ajk úlsrK m%udKh by<h ;sr fi,ùu jeäh m%;spdr oelaùfï fõ.h jeäh wêl úÿ,s n,hla jeh fõ' jeä bv m%udKhla wjYH fõ' ñ, jeäh ksl=;ajk úlsrK m%udKh wvqh ;sr fi,ùu wvqh m%;spdr oelaùfï fõ.h wvqh wvq úoq,s n,hla jeh fõ wvq bv m%udKhla m%udKj;a fõ'
44.
Light Emitting Diode
- LED
45.
nyq udOH m%lafIamlh$m%fclagrh (Multimedia
Projector)
46.
uqøK hka;% •fldgia follg
fnosh yel • >Gk uqøK hka;% • fkd>Gk uqøK hka;% oDV msgm;a ,ndfok Wmdx.
47.
>Gk uqøK hka;%
fkd>Gk uqøK hka;% • fâis frdao uqølh • ;s;a kHdi uqølh • f¾Ld uqølh • ;Ska; msysß uqøK hka;%h • nqnq¨ msysß uqøK hka;%h • f,ai¾ uqøK hka;%h • ;dm ixfõos uqøK hka;%h • W!¾Ojmd;kh u.ska idhï w;=rk uqøK hka;%h
48.
• ;s;a kHdi
uqølh
49.
;s;a kHdi uqølhl
oelsh yels ,CIK • uqøK ;;a;ajh b;d my<h • uqøK msßjeh b;d wvqh • uqøKfhaoS wêl Yíohla ksl=;a fõ' • uqøKh ùu i|yd .;jk ld,h b;d jeäh'
50.
fma<s uqølh (Line
Printer) jrlg tla fma<sh ne.ska uqøKh lrk fma<s uqølh fõ.j;ah
51.
;Ska; ú¥ï uqøK
hka;%
52.
;Ska; ú¥ï uqøK
hka;%j, oelsh yels ,laIK ^;Ska; msysß yd nqnq¨ msysß uqøK hka;%& • øj ;Ska; n÷kl (Cartridge) we;s ;Ska; fõ.fhka lvodish u;g úoSfuka wl=re yd rEm uqøKh fõ' • uqøKh i|yd ks,a" r;=" ly iy l¨ hk j¾K 4 Ndú;d lrkq ,efí' • uqøK msgm;l ;;a;ajh b;d by<h' • uqøs; msgm;a i|yd jeä msßjehla oeÍug isÿfõ'
53.
f,ai¾ ;dlaIKh Ndú;d
jk uqøK hka;%
54.
f,ai¾ ;dlaIKh Ndú;d
jk uqøK hka;%j, oelsh yels ,laIK • uqøK ;;a;ajh b;d by<h • uqøs; msgm;l msßjeh b;d wvqh • uqøK hka;%h i|yd jeh l< hq;= msßjeh jeäh • uqøKh fõ.j;ah • Yíohla ksl=;a fkdfõ'
55.
;dm uqølh (Thermal
Printer) fjf<| jHdmdr" iajhxl%Sh fg,¾ hka;%h wdÈfhys ßisÜ m;a ksl=;a lsÍu iy f,an,a uqøKh i|yd nyq, j fhdod .efka'
56.
,l=KqlrKh (Plotter) mß.Klh wdY%s; ie,iqï
ks¾udKlrKfha § ^.Dy ks¾udK ie,iqï" k.r ie,iqï" kdúl hd;%d ie,iqï jeks& nyq,j fhdod .kq ,nhs
57.
mß.Kl moaO;sfha l%shdj,sh
58.
mß.Kl moaO;sfha uQ,sl
wx.h jkafka uOH ieliqï tallhhs' mß.Klfha fud<h f,i y÷kajkq ,nk uOH ieliqï tallh úOdkj,g wkqj l%shd;aul jk w;r fufyhqï moaO;sh ^Operating System& iy fhojqï uDÿldx. ^Application Software& l%shd;aul lrkakd o fõ' uOH ieliqï tallh m%Odk jYfhka fldgia ;=klska iukaú; fõ'
59.
60.
u;l frcsiagr wxl .Ks;uh
yd ;d¾lsl tallh md,k tallh wdodk m%;sodk m%Odk u;lh oaú;Sl u;lh uOH ieliqï tallh
61.
mß.Kl moaO;shl my;
fldgia u.ska isÿjk l%shdj,sh fláfhka olajkak wdodk wxl .Ks;uh yd ;d¾lsl tallh frcsiagr u;lh md,k tallh
62.
mß.Kl moaO;shl my;
fldgia u.ska isÿjk l%shdj,sh fláfhka olajkak m%;sodk m%d:ñl u;lh oaù;Sl u;lh
63.
uOH ieliqï tallh •md,k
tallh (Control Unit) •wxl .Ks;uh yd ;d¾lsl tallh (ALU) •u;l frðiagr
64.
65.
mß.Kl u;lh (Computer Memory)
66.
mß.Kl u;lh m%d:ñl u;lh oaú;Sl u;lh
67.
mß.Kl u;lh m%d:ñl u;lh iiïNdù msúiqï u;lh mGk
md;% u;lh jdrl u;lh oaú;Sl u;lh
68.
m%d:ñl u;lh (Primary
Memory) uOH ieliqï tAllhg fl,ska u m%fõY úh yels u;lh m%d:ñl wdphkh ^Primary Storage& f,i ye¢kafõ‘ th j¾. ;=klska hq;=h
69.
iiïNdù msúiqï u;lh
Random Access Memory(RAM)
70.
ilia lsÍug fhduq
lrk f;la o;a; ;djld,sl j r|jd ;nd .ekSu fuu iiïNdù msúiqï u;lfhka isÿfõ'
71.
mGk ud;% u;lh
- Read Only Memory (ROM)
72.
mß.Klfha uQ,sl l%shdj,shg
wjYH úOdk ;ekam;a lr we;af;a mGk ud;% u;lh ;=< h'
73.
jdrl u;lh -
Cache Memory uOH ieliqï tallh ^CPU& iy m%d:ñl u;lh ^Primary memory& w;r w;rueÈhd f,i fuh ks;r Ndú; jk o;a; r|jd ;nd .kS'
74.
oaú;Shsl u;lh (Secondary Memory)
wdphk Wmdx.
75.
76.
wdphk Wmdx. •oDV ;eáh •kuH
;eá (floppy disk), •Zip disk •Jazz Disk • ix.; ;eá (CD), • ixLHdxl nyqúO ;eá (DVD), •iek,s u;l Odjl
77.
pqïnl udOH Wml%u
- (Magnetic Media Devices)
78.
kuH ;eá (floppy
disk), •5” kuH ;eáfhys Odrs;dj 1 MB •3 ½” kuH ;eáfhys Odrs;dj 1.44 MB
79.
Hard disk oDV
;eáh up to 4 TB
80.
81.
Zip disk Odrs;dj 100-750MB
82.
2' m%ldY udOH
(Optical media)
83.
ix.; ;eá (CD) Odrs;dj
650-900MB
84.
ixLHdxl nyqúO ;eá
(DVD), Odrs;dj 4.7GB-16GB
85.
Blu-ray disk, Odrs;dj 200
GB
86.
87.
>k ;;a;ajfha Wmdx.
(Solid state devices)
88.
iek,s u;l Odjl Odrs;dj
128MB-1TB
89.
90.
u;l ldâm;a (Memory
card)
91.
ndysr Wmdx. mß.Klhg iú
lsÍug WmldÍ jk f;dgq $ flfjks (Computer Ports)
92.
93.
úÿ,s /yeka iújk
ia:dkh
94.
PS / 2
flfjksh ujqih yd h;=re mqjrej iúlsÍug Ndú; fõ'
95.
fYa%Ks.; flfjksh (Serial
Ports) ;=vq 9 iy 25 hk j¾.fhka oelsh yels fudavu fYa%Ks.; ujqi iúlsÍug Ndú;d fõ'
96.
iudka;r flfjksh(Parallel Port) isÿre
25 lska hqla; flfjkshls' uqøK hka;%h $ iqmÍCIKh wdosh iú lsÍug Ndú; fõ'
97.
cd,lrK flfjksh (Network Port) cd,lrKh
/yeka iújk flfjKshhs
98.
mß.Kl ;sr flfjksh
(Monitor Port / VGA) újr 15 lska hqla; flfjKshls' fudksgrh yd nyq udOH m%fCIamK hka;% iú l< yelsh
99.
HDMI flfjksh wxls; m%;sodkhla
,nd oSu i|yd kQ;k mß.Kl j, oelsh yels flfjkshls'fuh mß.Kl ;srh " nyqudOH m%lafIamlh" äðg,a rEmjdyskS hka;% iy äðg,a Yío jdyskS hka;% iïnkaO lsÍu i|yd fhdod .kq ,nhs'
100.
101.
úYaj fYa%Ks.; nia
flfjKsh (USB – Universal Serial Bus) ckms%hu o;a; iïfma%IKh fõ.h jeäu fljKshhs' h;=re mqjrej" ujqi" uqøK hka;%" ixLHd;aul leurd" fudavu we;=¨ fndfyda WmlrK Ndú;d l< yelsh'
102.
USB flfjKsfha we;s
jdis • fndfyda WmlrK fuu flfjKshg iúl< jyd ls%hd;aul fõ‘ • Wmdx. i|yd wjYH úoq,sh o fuu flfjKsfhkau ,nd .kS‘
103.
• Wmdx. .e,ùug
úÿ,sh úikaê l< hq;= ke;‘ • o;a; iïfma%IKh fõ.h 480Mbps fõ‘ • flfjKshg úúOdldr Wmdx. 127 la iú lsÍfï yelshdj we;'
104.
Yío Wmdx. flfjks
(Sounds Port)
105.
fudavï flfjksh wka;¾cd,h iïnkaO
ùug fukau mß.Klh Ndú;d lr *elaia mKsjvhla heùug fudavï fhdod .efka' fïjd iújk flfjksh fudavï flfjKshhs'
106.
ó,.g mrs.Kl u;lh
107.
o;a; ikaksfõokh (Data Communication)
108.
109.
^1& o;a; m%Njh
- o;a; iïfma%IKh lrkakd ^2& iïfm%aIK udOH - o;a; iïfma%IKh lsÍug fhod .kakd udOH ^ÿrl:k /yeka (wired) /yeka rys; (wireless) ^3& o;a; .%dylhd - o;a;h ,nkakd
110.
o;a; iïfma%IK úê (Data
Transmission Modes)
111.
112.
සන්නිවේදන මාධ්ය 1 .
ියමු මාධ්ය 2 . ියමු වනාවන මාධ්ය
113.
ියමු මාධ්ය දත්ත සන්නිවේදනය
සදහා වයාදා ගන්නනා ව ෞතික මාධ්යක් වෙස ියමු මාධ්ය හැදින්නිය හැක.
114.
1.ඇඹරූ කම්බි යුගෙ 2.සමක්ෂක
වක්බෙ 3.ප්රකාශ තන්නු යනාදී වශවයන්න වමය ආකාර 3 කි.
115.
ඇඹරූ කම්බි යුගෙ වමය
ආකාර 2 කි. 1.වනාවැසුණු ඇඹරූ කම්බි යුගෙ - UTP 2.වැසුණු ඇඹරූ කම්බි යුගෙ -STP
116.
UTP STP
117.
සමක්ෂක වක්බල් සන්නනායක වක්බෙ
යුගෙයකි. රූපවාහිි ඇන්නටනා , CCTV වක්බෙ වෙස වයාදා ගන්නනා වමය තඹ කම්බි දැෙක් ආකාරවයන්න වූ පිටත වක්බෙය වටා ිදුත් චුම්බ කත්වයක් ඇති කරයි.
118.
119.
ප්රකාශ තන්නු වමයද සන්නනායක
වක්බෙ යුගෙකින්න යුුය.මධ්යය වීදුරු බටයක්ද ඒ වටා සිහින්න වීදුරු තන්නුද වමය වවන්න කිරීමට ප්ොසටික් ආවරණයක්ද ඇති වමහි ිවශටෂත්වය වන්නවන්න දත්ත සන්නිවේදනවේදී ආවෙෝකය පරාවතතනය වවමින්න සන්නිවේදනය වීමයි.
120.
121.
fN!;sl udOH fhdod
.ekSulska f;drj jd;h yryd ix{d f,i o;a; iïfma%IKh lsÍu kshuq fkdjk udOHh f,i yeÈkafõ' kshuq fkdjk udOH (Unguided/ Wireless)
122.
• .=jka úÿ,s
;rx. (Radio waves) • laIqø ;rx. (Microwaves) • pkaøsld o;a; iïfma%IKh Satellite communication • wfOdarla; lsrK (Infrared) kshuq fkdjk udOH (Unguided/ Wireless)
123.
kshuq fkdjk udOHh (Unguided/Wireless)
124.
.=jka úÿ,s ;rx.
(Radio waves) jhs *hs (Wifi) iy íÆgQ;a (Bluetooth) .=jka úÿ,s ;rx. u; l%shdlsÍï i|yd WodyrK fõ'.
125.
laIqø ;rx. මාධ්යය
ිදුත් චුම්බ ක තරංග ිවශටෂයකි. අධි සංඛ්යාත ගුවන්න ිදුලි තරංග laIqø ;rx. වෙස හඳුන්නවයි. laIqø ;rx. (Microwaves)
126.
pkaøsld iïfma%IKh (Satellite communication
) mDථීියට ඉහළින්න භ්රමණය වවමින්න සංිවේදනයට මඟ පෑදිම සඳහා pkaøsld ාිතා කරනු ෙබයි.
127.
වමවැි චන්නිකා පෘථිියට
ිශටිත උසක සිට ිවශටෂ වේගයකින්න පෘථීිය වවේ භ්රමණය වවමින්න පෘථිියට සාවප්කෂව pkaøsld ව ිසෙව පවත්වා ගනී. එම ිසා වපාළවවහි ඇති pkaøsld හුවමාරු මධ්යසටථාන වෙට භ්රමණය වවන pkaøsld සැම ිටම වයාමුව පවතී.
128.
pkaøsld වයාදා ගැිවමන්න
සංිවේදනය සිදු වන ිසා වොව එක් වකළවරක සිදුවන වදය එම වමාවහාවත්ම අවනක් වකළවරට සම්බවේෂණය කෙ හැකිය.
129.
wfOdarla; lsrK (Infrared) /yeka
rys; h;=re mqjre iy uQisl md,kh i|yd wfOdarla; lsrK o;a; iïfma%IK udOHh f,i fhdod .kq ,nhs'
130.
mß.Kl cd, iïnkaO
lsÍfï Wmdx.
131.
cd,lrK w;=re uqyqK;a
ldâm; ^Network interface card&•fuh mß.Klhg iú lr we;' wm úiska by; wjia:djl § bf.k .kak ,o o;a; iïfma%IK kshuq udOHhla ^Guided$ Wired& mß.Klhg iïnkaO jkafka cd,lrK w;=re uqyqK;a ldâmf;ys ^Network interface card& we;s cd,lrK flfjkshg ^RJ 45& h'
132.
iaúph fyda kdNs
- (Switch / Hub) mß.Kl folla fyda Bg jeä m%udKhla fyda w;r iïnkaO;djla f.dvke.Su i|yd ueÈy;alre f,i l%shdlrkafka iaúph fyda kdNshhs'
133.
• iaúpfhys iy
kdNsfhys we;s fjkialï lsysmhla" • m%Odk;u fjki jkafka yqjudre fõ.hhs' mß.Kl cd,fhys we;s mß.Kl w;r f;dr;=re yqjudrefõ § kdNsh yqjudre lrkq ,nk f;dr;=re ish¨u mß.Kl fj; fhduq flfrk w;r iaúph f;dr;=re fhduq lrkafka wod< mß.Klh fj; muKs' fuys § kdNsh úiska wkjYH ;onohla we;s lrkq ,nhs' •f;dr;=re yqjudrefõ § kdNs l%shd;aul lrkafka w¾O oaúm: ^half duplex& úê l%uhg jk w;r iaúph mQ¾K oaúm: ^Full duplex& úê l%uh fhdod .efka'
134.
f¾äfhda ;rx. u.ska
b;d fõ.j;a mß.Kl cd, iïnkaO;djla fuka u cx.u ÿrl:k yd ,emafgdma mß.Kl i|ydfõ.j;a wka;¾cd, iïnkaO;djla we;s lsÍug iu;a udOHh jhs- *hs wevmagrhhs' jhs- *hs wevmagr
135.
ud¾.lh (Router) mß.Kl cd,
folla fyda Bg jeä ixLHdjl iïnkaO;dj we;s lsÍug fhdod .kakd Wmdx.h ud¾.lhhs ^Router&
136.
fudvuh o;a; mßj¾;lfhl= f,i
l%shd lrhs' tkï mß.Klfhys we;s wxls; $ äðg,a (Digital) o;a; yd f;dr;=re m%;siu ix{d f,i o m%;siu ix{d f,iska mj;sk o;a; yd f;dr;=re kej; wxls; ix{d njg m;alrhs'
137.
.sksmjqr (Firewall) •.sksmjqr mß.Kl
cd, wdrlaIl moaO;shls‘ wka;¾cd,h iy mß.Kl cd, w;r o;a; iy f;dr;=re iïfma%Ikh md,kh lsÍug wjYH úêúOdk fuys wvx.= h'
138.
•fiajdfhdacl mß.Kl (Server) •by<
msßú;rhkaf.ka (High Configuration) iukaú; fuu mß.Kl cd,h md,kh lrhs' •fiajd,dNS mß.Kl(Client) •mß.Kl cd,fha fiajdjka ,nd .kakd mß.Klh
139.
mß.Kl cd, j¾.
140.
ia:dkSh m%foaY cd,
Local Area Network (LAN) f.dvke.s,a,l ldurhla ;=< fyda ldur lsysmhla iïnkaO lrñka ia:dms; lrkq ,nk mß.Kl cd,hla ia:dkSh m%foaY cd,hla f,iska ye¢kafõ'
141.
142.
143.
mqrjr m%foaY cd,
(Metropolitan Area Network- MAN) ls'ó 16la fyda Bg wvq m%foaYhla wdjrKh jk wdldrfhka ia:dk .; lr we;s" ia:dkSh m%foaY cd, lsysmhl tl;=jla mqrjr m%foaY cd,hla f,i ye¢kaúh yels h'
144.
mq¿,a m%foaY cd,
(Wide Area Network - WAN) b;d mq¿,a m%foaYhla wdjrKh jk mßoafoka ks¾udKh flreKq cd," mq¿,a m%foaY cd, f,iska oelafõ''
145.
cd, ia:, úoHdj (Network
Topology)
146.
147.
148.
149.
Tree Topology
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