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G.C.E O/L ICT Short Notes Grade-11
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G.C.E O/L ICT Short Notes Grade-11
1.
f;dr;=re yd ikaksfõok
;dlaIKh 11 fY%aKsh 1-3 olajd jQ tall i|yd flá igyka ufyaIa fldä;=jlal= BTech-ICT, MCTS, MIEEE, Certificate in ICT(AIT-Thailand)National Dip in Teaching (Merit)
2.
2 1- .eg¨ úi|Sug
l%uf,aLk ,sùu we,af.dß;u(Algorithm) Algorithm hkq ගeg¨jla úi|Su i|yd wkqගukh lrk l%ufõoh wkqms<sfj<ska ,shd oelaùuhs' we,afගdß;u ixj¾Okh lsÍu i|yd md,k jHqy Ndú;h m%Odk md,k jHqy 3 la oelsh yel' tajd kï" wkql%uh(Sequence) we,af.dß;uhl පිහිටි පියලර කිහිපයක් හශෝ සියල්ම හශෝ ආරම්භක පියලරක සිට අලවාන පියලර දක්ලා ඉශ සිට පශෂට එකඑල්හල් අනුපිළිලලින් l%shd;aul කිරීම මින් අදශව් හේ. jrKh(Selection) ඇල්හගොරිතමයක ඇතුෂත් හකොන්හේසියක් තෘප්තවීම හශෝ හනොවීම අනුල l%shd;aul කෂ යුතු පියලර කුමක් ද යන්න දැක්වීම මින් අදශව් හේ. mqk¾lrKh(Iteration) ඇල්හගොරිතමයක පිහිටි පියලරක්/පියලර කිහිපයක් හශෝ හකොන්හේසියක් තෘප්ත ලන හතක් හශෝ තෘප්තල පලතින හතක් නැලත සිදුවීම මින් දැක්හේ. we,afගdß;u fගdvkeගsh yels wdldr 02 ls' .e,Sï igyk(Flow Chart) ගe,Sï igyka we|Su i|yd Ndú;d lrk ixfla; lsysmhls' wdrïNh$wjidkh ;SrK fldgqj ieliqu o;a; ග,dhdu wdodk$m%;sodk iïnkaOl jHdc fla;(Pseudo Codes) mßගK l%u f,aLkhla fyda l%uf,aLk idOlhla tys iqúfYaI jQ jHQyh fjkqjg ir, l%uhlskaa oelaùu iQfvda fldaâ f,i ye|skafõ' fuh mßගKl l%uf,aLlfhl= fkdjk flfkකුg (Non Preprogrammer)jqjo f;areïග; yels wdldrhg ir, niska olajkq ,efí'
3.
3 l%uf,aLkhla hkq mßගKlhg
hï ld¾hhla lsÍu i|yd ,ndfok úOdk iy Wmfoia ud,djl tl;=jls' l%uf,aLk NdIdjla (Programming Language) hkq mßගKlhg tjka úOdk ,ndoSug ilia lr we;s udOHhls' tla tla NdIdjlg wod< kS;s ud,djla iy Wmfoia iuQyhla we;' පශ මට්ටහම් පරිගණක භාා නැතහශොත් hkak% NdIdj (Machine Language) jevigyka ,shk ,oafoa 0 yd 1 Ndú;d lr Machine Code tflks' tneúka úOdk we;=<;a lsÍu b;d ixlS¾K ld¾hhla úh' hka;%h u; hefmk NdIdjls l%uf,aLlhd úiska mßගKlfha oDVdxග (Hardwere) ms<sn|j oekග; hq;=fõ' mßj¾;l uDÿldxගhla wjYH fkdùh' jevigyka lshd;aul ùu fõගj;ah' එහවම්බ්ලි භාාල(Assembly Language) úOdk l%uh^ Machine Language) tlg idfmalaIj ir,h úOdk ගKkdjla fjkqjg ixfla; Ndú;d lsÍu ksid ixfla; NdId f,i y÷kajkq ,efí' Assemblerkï jQ iqúfYaIS NdId mßj¾;lhla ixfla;d;aul NdIdj hdka;%sl NdIdj njg mßj¾;kh lsÍu i|yd fhdod ගkakd ,oS' tho hka;%h u; hefmk NdIdjls' fuh m<uq mrïmrdjg jvd l%shdlaul jk fõගh wvqúh' ඉශ මට්ටහම් mßගKl NdId(High Level Language) mß.Kl l%uf,aLkh lsÍfï NdIdj ixlS¾K;ajh wvqh' Ndú; lrk jpk iy ixfla; ir, iy bxY%Sis NdIdjg fmdfyda fihska yqreh fuksid fuu NdId හම්ලා ඉශ මට්ටහම් භාා හව ශැඳින්හේ Wod (- FORTRAN, COBOL, PASCAL, C, Java, Python) l%uf,aLk NdId j¾. l%uf,aLk l%shdj,shg m%fõY ùu msKsi úl,am m%fõY ගKkdjla we;' tAjd l%uf,aLk mervhsu (Paradigms) f,i ye¢kafõ'
4.
4 mámdá.; (Procedural) yd
m%ldYk (Declarative) l%uf,aL w;r fjki mámdá.; NdIdjla hkq b;d fyd¢ka jHqy.; jQ mshjr ud,djlska iy mámdáj,ska (Procedural) iukaú; mßගKl l%uf,aLk NdId j¾hls' අල්යj කුමක්ද ආකාරහේ ලැඩවටශන් කරණයක් පටිපාට ගත කරණහේ දී භාවිත ලන අතර හකහවේ ද කෂ යුත්හත් යනආකාරහේ l%uf,aLkhg උපහදව් බා දීම m%ldYk l%ufhaoS අනුගමනය හකහේ. my; oelafjkafka mámdá.; (Procedural) yd m%ldYk (Declarative) l%uf,aLk fhdod .ksñka >kl ;=kla Ndú; fldg ;ks >kldNhla ;ekSug úOdk ,nd oS we;s wdlrhhs' mßගKl NdId mßj¾;l uDÿldxග(Programing Language Translators) mßගKl NdIdjka uගිka ilia lrk ,o l%uf,aLhla (Computer Program) mßගKlhka uගිka l%shd lrùug kï th hdka;%sl NdIdjg mßj¾;kh l< hq;=fõ' ta i|yd mßගKl NdId mßj¾;l uDÿldxගNdú;d lrhs' mßගKl l%uf,aLkfha uq,a msgm;Source Programf,i;a hdka;%sl NdIdjg mßj¾;kh l< msgm; Object Program f,i;a y÷kajkq ,nhs' mßගKl NdId mßj¾;k uDÿldxග j¾ග 3 la we;'
5.
5 Interpreter - ^w¾ථúkHdil&
uQ,sl l%uf,aLkfha we;s fma<sfhka fma<sh hdka;%sl NdIdjg yerùu fï uගska isÿ flf¾' Compiler - ^iïmdol& uQ,sl l%uf,aLkfha we;s iïmQ¾K wka;¾ග;h tljr hdka;%sl NdIdjg yerùu fï uගska isÿ flf¾' Assembler - ^tl,ia&Assembly NdIdfjka ,shk ,o jev hdka;%sl NdIdjg yerùu fuhska isÿ flf¾' meial,a mß.Kl NdIdj • meial,a mß.Kl NdIdj 1970 oS ksl,ia j¾;a úiska y÷kajd fok ,oS • th procedural programming j¾.hg wh;a mß.Kl NdIdjls y÷kajk ^Identifiers) y÷kajkhla hkq úp,Hhla (Variable) ksh;hla (Constant) fyda l%uf,aLkhla (Program) ye¢kaùu i|yd fhdod .kakd kuls j,x.= y÷kajk Wod- myname My_name My2name myname2 o;a; m%rEm ^Data Types) úp,H (Variables) l%uf,aLh l%shd;aul jk úg y÷kajkh i|yd mjrk ,o w.hka fjkia jk y÷kajk" úp,Hhla f,i kï flf¾' Wod- var myname:string; ksh; (Const) l%uf,aLh l%shd;aul jk úg y÷kajkh i|yd mjrk ,o w.hka fjkia fkdjk y÷kajk" ksh; f,i kï flf¾' const pi:=22/7;
6.
6 ldrl (Operators) ldrl fkdue;s
j .Kkh lsÍu" ixikaokh lsÍu iy ;d¾lsl m%ldYk f.dv ke.Su l< fkdyels h' tneúka l%uf,aL ,sùug ldrl w;HjYH fõ' ldrl (Operators) j¾. lssysmhla ´kEu mß.Kl NdIdjl oelsh yel 1. wxl .Ks;uh ldrl 2. iei÷ï ldrl 3. ;d¾lsl ldrl If Ndú;h hï fldkafoaishla ;Dma; jk wjia:djl oS l%Shd;aul ùu i|yd If fhdod .kq ,efí' if fldkafoaish then ksjeros kï l%shd;aul jk j.ka;s fyda j.ka;sh If …then …else Ndú;h if fldkafoaish then ksjeros kï l%shd;aul jk j.ka;s fyda j.ka;sh else ksjeros fkdfõ kï l%shd;aul jk j.ka;s fyda j.ka;sh meial,a mß.Kl NdIdfjys Ndú; jk mqk¾lrK j¾. 3ls • FOR DO jHqyh • While DO jHqyh • Repeat Until jHqyh FOR DO jHqyh jdr .Kk ksYaÑ;j okakd wjia:d j,oS FOR DO jHqyh Ndú; l< yel Wod- For n:=1 to 10 do Write(n); while do jHqyh mqk¾lrKh wdrïNfha oS fldkafoaish mÍlaId lr n,d l%shd;aul ùu isÿfõ' fuys oS fldkafoaish i;H kï muKla mqk¾lrKh l%shd;aul fõ' Wod- n:=1; while n<=10 do Write(n); n:=n+1;
7.
7 Repeat… Until jHqyh mqk¾lrKh
wdrïNfha oS fldkafoaish mÍlaId lsÍu isÿjkafka ke;' fldkafoaish wi;Hkï muKla mqk¾lrKh werfò' n:=1; Repeat Write(n); n:=n+1 Until n>10 wrdj Ndú;h tlu o;a; m%rEmhg wh;a o;a; tlu kula fhdod .ksñka u;lfhys ;nd .ekSug wrdj Ndú; l< yel var num:array[0..4]of integer; 2-f;dr;=re moaO;s moaO;shla hkq hïlsis ksYaÑ; ld¾hhla $ wruqKla bgq lr ගekSu i|yd tu wruqKg$ld¾hhg w;HjYH jk ksYaÑ; l%shdj,ss isÿ lrk tlsfklg iïnkaO;djhka we;s úúO ix>Glhkafග් tl;=jls' moaO;sh Wm moaO;s moaO;s iSudj moaO;shl oelsh yels m%Odk ix>Gl wdodk ieliqu m%;sodk f;dr;=re moaO;s o;a; f;dr;=re njg mßj¾;kh lrk moaO;shla ñka woyia fõ' f;dr;=re moaO;s fldgia follg fnfoa' 1' yia;suh moaO;s 2' mßගKl u; mokï jQ moaO;s 10 32 num[0]
8.
8 yia;suh moaO;s ish¨u ieliqï
w;ska isÿ lrk moaO;s ñka woyia fõ' yia;suh moaO;shl we;s jdis wdrïNh i|yd jeh jk msßjeh wju ùu' iq¿ mßudK jHdmdr j,g jvd fyd|ska ගe<mSu' yia;suh moaO;shl wjdis ukaoගdó yd wld¾hCIu fõ' uyd mßudK jHdmdrhkag ගe<fmkafka ke;' mß.Kl u; mokï jQ f;dr;=re moaO;s oDVdx. uDÿldx. ld¾hh mámdá o;a; yd f;dr;=re iy tajd Ndú;d lrkakka yryd o;a; f;dr;=re njg m;a lsÍu fujeks moaO;shlska isÿ fõ' mß.Kl u; mokï jQ f;dr;=re moaO;shl jdis ld¾hCIu;djh b;d by<h o;a; ;ekam;a lsÍug jeä bvla wjYH fkdfõ' fõ.j;ah o;a; Wmia: msgm;a ;nd .; yels ksid o;a;j, wdrlaIdj ;yjqre fõ' mß.Kl u; mokï jQ mß.Kl u; mokï jQ f;dr;=re moaO;shl wjdis wdrïNl msßjeh b;d by<h moaO;s ixj¾Ok cSjk pl%h f;dr;=re moaO;shla f.dvke.Sug fhdod .efkk mshjr moaO;s ixj¾Ok cSjk pl%h kï fõ' tys m%Odk mshjr yhls' 1. wjYH;d y÷kd .ekSu 2. úi÷ï ie,iqï lsÍu' 3. úi÷u fla; lrKh 4. úi÷u mÍlaId lsÍu yd fodaI bj;a lsÍu 5. moaO;sh msysgqùu 6. moaO;sh kv;a;= lsÍu 1-wjYH;d y÷kd .ekSu oekg mj;sk moaOlsfha mQ¾K úuid ne,Sula isÿ lrK w;r kj moaO;sfhka n,dfmdfrd;a;= jk wruqKq" m%;s,dN yd ld¾hlaIu;dj .ek f,aLkhla f.dvke.Su isÿfõ' moaO;s úYaf,aYl úiska mj;sk moaO;sh úia;rd;aul wOHhkhla isÿ lsÍu o fuu mshjf¾ oS isÿfõ' fuu mshjf¾ oS f;dr;=re /ia lr .ekSug Ndú; lrk l%ufõo lsysmhls Wod - 1. ksÍlaIKh 2. iïuqL idlÉPd 3. m%Yakdj,s 4. jd¾;d yd ,sms f.dKq ksÍlaIKh 5. uQ,do¾Y Ndú;h 2-úi÷ï ie,iqï lsÍu
9.
9 ie,iqï ieliSu" wjYH
uDÿldx. y÷kd .ekSu" uDÿldx. ks¾ñ;h y÷kd .ekSu fuys oS isÿfõ' w;=re uqyqK;a yd o;a; mdol ieliSu o isÿjkafka fuu mshjf¾ oSh' 3-úi÷ï fla;lrKh moaO;s ie,iqïlrKfha oS f;dard .;a ix>Gl WmmoaO;s wdosh mß.Kl NdIdjla u.ska ක්රuf,aLkh lsÍu fuu mshjf¾ oS isÿfõ' 4-úi÷ï mÍlaId lsÍu yd fodaI bj;a lsÍu moaO;sfhys mj;sk fla;k" ie,iqï fyda wjYH;d fodaY y÷kdf.k ksjeros lsÍu fuu mshjf¾ oS isÿfõ' úi÷ï mÍlaId lsÍfï l%u lsysmhla fõ' tall mÍlaIdj moaO;sfha tla tla tall fjk fjku f.k fodaI mÍlaIdj ñka woyiafõ' iuia: mÍlaIdj tall taldnoaO fldg mÍlaId lsÍu iuia: mÍlaIdj kïfõ' moaO;s mÍlaIdj iïmQ¾K moaO;shg wdodk ,nd foñka ksjeros m%;sodkh ,efíoehs mÍlaId lsÍu ñka woyiafõ' m%;s.%yK mÍlaIdj moaO;s mÍlaIdfjka wk;=rej isÿ flf¾' mßYS,lhka úiska isÿlrk w;r Tjqka wod, moaO;sh ms<s.ekSu fyda fkd.ekSu fï u; isÿfõ' 5-moaO;sh msysgqùu ilik ,o moaO;sh mß.Klh ;=< ia:dmkh lr jev lsÍu ñka woyia flf¾' mßYS,lhka mqyqKq lsÍug isÿjkafka fuu mshjf¾oSh' kj mß.Kl moaO;sh wdh;khlg y÷kajdoSfï oS l%shd;aul l< yels ක්රfu lsysmhls' 1- iDcq l%shd;aul lsÍu mj;sk moaO;sh bj;a fldg kj mß.Kl moaO;sh y÷kajd oSu' 2- iudka;r l%shd;aul lsÍu mj;sk moaO;sh yd kj moaO;sh hk folu ksYaÑ; ld,hla l%shd;aul lsÍu' 3- kshuq l%shd;aul lsÍu merKs moaO;sfha f;dard .;a fldgila kj moaO;shg fhduq fldg l%shd;aul lsÍu' 4- woshruh l%shd;aul lsÍu merKs moaO;sfha f;dard.;a fldgia mshjr jYfhka kj moaO;shg ia:dmkh lsÍu' tall mÍlaIdj iuia: mÍlaIdj moaO;s mÍlaIdj m%;s.%yK mÍlaIdj
10.
10 6-moaO;s kv;a;= lsÍu ksjerosj
moaO;sh mj;ajd f.k hdug wjYH hdj;ald,Sk lsÍï lrñka mj;ajd .ekSu ñka woyia fõ' moaO;s ixj¾Ok wdlD;s moaO;s ixj¾Ok cSjk pl%h ;=< oelsh yels wdlD;s .Kkdjls' bka lsysmhla my; oelafõ' 1. osh we,s wdlD;sh 2. mqk¾lrK jDoaê wdlD;sh 3. uQ,do¾Y wdlD;sh 4. i¾ms, wdlD;sh osh we,s wdlD;sh m<uqj wjYH;d y÷kd .ekSu isÿfõ tla mshjrla weröug Bg m<uq mshjr wjika l< hq;=h wjika m%;sM,h oel .ekSug moaO;s ixj¾Ok cSjk pl%fha wjika woshr olajd n,d isgh hq;=h moaO;sh wid¾:l ùfï wjOdku by<h fyd|ska wjYH;d y÷kd.;a moaO;s j,g .e,fma' mqk¾lrK jDoaê wdlD;sh moaO;sh ixj¾Okh jk ;=re kej; kej; iliñka jeäoshqKq lsÍu fuys isÿfõ moaO;sh wid¾:l ùfï wjOdku b;d wvqh 3- wka;¾cd,h yd úoHq;a ;emE, f,dj mqrd cd, rdYshl tl;=jla wka;¾cd,h kïfõ' wka;¾cd,fhys we;s f;dr;=re yqjudre lsÍug http (Hyper Text Transport Protocol) kï kshudj,sh Ndú; fõ' URL hkq l=ulao@ fjí wvú ;=< mj;sk úúO iïm;a wkkH;dj y÷kd .ekSug Ndú; lrk l%uh taldldr iïm;a ksYapdhlh kïfõ'^ URL- Uniform Resource Locator & wjYH;d y÷kd .ekSu úi÷ï ie,iqï lsÍu úi÷ï l%shd;aul lsÍu úi÷ï mÍlaIdj yd ksjeros lsÍu moaO;sh mysgqùu moaO;sh kv;a;= lsÍu
11.
11 http: // www.schoolnet.lk/sinhala/
itbooks.html IP ,smsk hkq fudkjdo@ wka;¾cd,fha we;s iEu mß.Klhlau fjka lr y÷kd .; yels wxlh IP ,smsk kïfõ' 0 isg 255 olajd jQ w.hka 4 la u.ska IPIV j¾.fha ,smsk ksrEmKh fõ' Wod- 10.202.3.1 fïjd ,nd fokafka wka;¾cd, fiajd iemhqïlre úisks' jiï kduh (Domain Name) www.google.com we;eï by, jiï kdu u.ska tu jiï ,smskh wh;a lafIa;%h y÷kd .; yel' Wod- .com jdkscuh fjí wvú .org ,dn fkd,nk wdh;k ixúOdk j,g wh;a fjí wvú we;eï by, jiï kdu u.ska tu jiï ,smskh wh;a jk rg y÷kd .; yel' Wod- .lk Y%S ,xldj .in bkaoshdj wka;¾cd,fhys fufyhqu isÿjk wdldrh 1. mßYS,lhd úiska fjí w;sßlaiqj yryd URL tl we;=`t lsÍu' Wod- www.facebook.com 2. fjí w;ßlaiqj URL tl DNS i¾jrhg fhduq lsÍu' 3. DNS i¾jrh URL tlg wod, IP ,smskh njg m;a lsÍu' Wod- www.facebook.com 192.162.10.2 4. IP ,smskh we;s fjí i¾jrhg wod, b,a,Su fhduq lsÍu' 5. fjí i¾jrh u.ska HTML o;a; kej; ,nd oSu' 6. fjí msgqj fjí w;sßlaiqj u.ska o¾Ykh lsÍu' nyq,j Ndú; jk kshudj,s lsysmhla HTTP -Hyper Text Transport Protocol- HTTP f,aLk yqjudrej isÿlrhs' TCP/IP- Trasmission Control Protocol/Internet Protocol- IP ,smsk yqjudrej md,kh lrhs' FTP-File Transfer Protocol f.dkq yqjudrej isÿ lsÍug Woõ fjhs' SMTP- Simple Mail Transfer Protocol kshudj,sh fiajdj jiï kduh iïm;a mj;sk ia:dkh iïm;a f.dKq by, jiï kduh
12.
12 úoHq;a ;eme,a
yqjudrej isÿ lsÍug Woõ fjhs' ICMP-Internet Control Message Protocol fodaI we;s úg mKsjqv oelaùu yd mKsjqv md,kh' wka;¾cd,fhys Ndú; jk fiajdodhl mß.Kl lsysmhla my; oelafõ' Web Server - fjí msgqj ;ekam;a lr we;s mrs.Klh" tys fiajd ,dNS mrs.Kl j,g fjí msgq ,nd foa Mail Server - úoHq;a ;eme,a ;ekam;a lr ;nd .kS' DNS Server - URL ,smsk IP ,smskh njg m;a lsÍu' wka;¾cd,fhys oelsh yels fiajd WWW úoHq;a ;emE, f.dkq yqjudre kshudj,sh ÿria: msúiqu f.dkq fnod yeÍu nyq udOH iemhqu fijqï hka;% f,dal jHdma; cd,h (WWW) wka;¾cd,hg iïnkaO fiajdjls' wka;¾cd,hg iïnkaOj we;s úoHq;a f,aLk rdYshl tl;=jls' Y%Su;a áï n¾kaia ,S uy;d úiska fuh ks¾udKh lrk ,oS' fjí w;sßlaiq lsysmhla Google crome Mozilla Firefox Internet Explorer Microsoft Edge Safari Opera FTP hkq fudkjdo@ úYd, m%udKfha f.dkq fiajdodhl mß.Kl fj; heùug fhdod .efkk kshudj,shls ÿria: msúiqu wka;¾cd,fha we;s mß.Kl ÿria:j isg md,kh yd yeisrùug Ndú; jk ;dlaIKhls' f.dkq fnodyeÍu fiajdodhl mß.Klhl we;s iïm;a fiajd,dNS mß.Kl w;f¾ yjqf,a Ndú; lsÍu f.dkq fnod yeÍu kïfõ' nyqudOH iemhqu nyqudOH f;dr;=re^ mdG" Y%jH" oDYH & wka;¾cd,h fhdod f.k mß.Kl w;r f;dr;=re yqjudre lsÍu ñka woyiafõ' fijqï hka;% wka;¾cd,fha we;s f;dr;=re myiqfjka uQ,mo fhdoñka fidhd .ekSug Woõ jk uDÿldx. ñka woyiafõ' www.google.com www.yahoo.com www.bing.com www.msn.com ikaksfúokh i|yd wka;¾cd,h Ndú; jk wdldrh úoHq;a ;emE, maheshkodit@outlook.com mßYS,l kduh jiï kduh
13.
13 E-mail j,oS yuqjk
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14.
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