Computer Network - Lesson 01

mß.Kl cd,lrKh uq, isg bf.k.uq¡

f;dr;=re ;dlaIK úIh yodrK whg;a, IT mdGud,d yodrK whg;a wy,d mqreÿ jpkhla ;uhs fï mß.Kl cd,lrKh tfyu;a ke;skï Computer Network.

fuh mq¿,a f,i l;dl, yels ud;Dldjls¡ wms n,uq uq,skau mß.Kl cd,hla lshkafka fudllao lsh,d¡

mß.Kl 2la fyda Bg jeä .Kkla hñ lsis wdldrhlg iïfma%IK udoHhlska tlg iïnkaO lr idok ,o moaO;shla mß.Kl cd,hla f,i yeÈkafõ¡

mß.Kl cd,.; lsÍfïÈ we;sjk jdis'

1. iïm;a fnod.ekSug yelsùu' ^WodyrKhla f,i tla uqoarK hka;%hla cd,.; lsÍu u.ska th lsysm fofkl=g Ndú;d l< yElsùu'

2' mß.Kl jevigykla tla mß.Klhlg we;=,;a l, miq thg iïnkaOù wfkl=;a whg th Ndú;d lsÍug yelsùu'

3' f;dr;=re yqjudrejg yd ikaksfõokhg fhdod .; yels ùu'

 

mß.Kl cd,.; lsÍfïÈ we;sjk wjdis'

1' tla mß.Klhla ;=,g mß.Kl ffjrihla we;=Æ jqjfyd;a th mß.Kl cd,fhau oDvdx. iy uDÿldx. j,g ydks isÿ lsÍu'

2' mß.Kl cd,.;lsÍfïÈ we;sjk wjdis cd,.; lsÍu u.ska we;sjk jdis ksid uelS hk w;r .eg¿j ioyd ms<shï fhdojd we;'

fiajd.%dylhd yd fiajd odhl¡ ( Client & server )

mß.Kl cd,.; lsÍfïÈ mß.Kl fukau printer jeks Wmlrk iïnKaO lrKq ,nhs' cd,h ioyd iïnkaO jq fujeks WmlrK node tlla f,i yÿkajhs' fuu iEu node tlla ioydu thg wdfõksl jQ ,smskhla we;' cd,hg iïnkaO iEu WmlrKhla yrydu f;dr;=re yqjudre lr.kq ,nkafka fuu ,smsk Tiafiah'

we;ï wjia;d j,§ node tlla fiajh b,a,d isák w;r tajd client f,io fiajh imhk node tl server tlla f,io yÿkajhs' tla wjia:djl§ node tlla client fyda server tlla jk w;r tl jr wjia:d folu isÿúh fkdyel' iuyr node iEu úgu server tlla f,i l%shd lrhs'^ Network printer &
 
úYd, mß.Kl cd,j, mß.Kl j,g fiajh imhk úYd, m%udKfha mß.Klo oelsh yel' fuu mß.Kl host mß.Kl f,i yÿkajhs' fïjd iEu úgu server tlla jk w;r fï ioyd minicomputer yd mainframe computer fhdod .kS'


mß.Kl cd, wdldr' ^ Network Topology &

mß.Kl cd, iE§u ioyd mß.Kl iïnkaO lrk wdldr lsysmhla jk w;r tajd u.ska ,nd.;yels m%fhdack tlska tlg fjkia fõ' tkï cd, wNHka;rfha we;s f;dr;=re yqjure jk wdldrh wkqj tajdfha ;dlaIKsl jeo.;alïo fjkia fõ' 
cd,hla ioyd mß.Kl iïnkaO lrk wdldr lsysmhla mj;sk w;r tajd cd, wdldr jYfhka y÷kajkq ,efí'

1. ;drldldr mß.Kl cd,' ^ star topology &
2. j,Æ wdldr mß.Kl cd,' ^ ring topology&
3. rela wdldr mß.Kl cd,' ^ ring topology &
4. nia wdldr mß.Kl cd,' ^ bus topology &

uOHfha úYd, m%udKfha mß.Klhla ;nd ;rldjl yevhg ;j;a mß.Kl iïnkaO lr iEÿ cd,hla fï kñka yeÈkafõ' fuys uOH mß.Klh host mß.Klhla ùug mq¿jk' client mß.Kl lsysmhlg fiajh imhk fujeks mß.Kl moao;s client server computer f,i y÷kajhs' fuhg WodyrKhla f,i wka;¾ cd,h oelaúh yel' kQ;k cd, j,§ uOHfha Hub jeks WmlrKhla iïnkaO lr mß.Kl iïnkaO lrkq ,efí¡

 

Bus Topology
 
mß.Kl ish,a,gu fmdÿfõ Ndú;d l, yels wdldrhg f.dvkÕd we;s cd,hla f,i fuh yeÈkaúh yel' fuys§ ikaksfõokh lrkq ,nk f;dr;=re fmdÿfõ Bus line tlla u; .uka lrkq ,nhs' fufia .uka lrkq ,nk f;dr;=re wod,  Node tl u.ska fidhd.kq ,nhs' fuys Ndú;d lr we;s Node - Server fukau Client o úh yel' iSñ; mß.Kl lsysmhla cd,.; lsÍfïÈ fuu l%uh fhdod .kS' fuh id¾:l l%uhla fkdjk w;r ñ, wêl fkdjk ksid f,dalh mqrd Ndú;d fõ'

Ring Topology

iEu mß.Klhlau ;j;a mß.Kl 2la iïnkaO jk f,i fuu mß.Kl cd,h idokq ,nhs' fuu l%uh Bus l%uhg jvd id¾:l l%uhla jk w;r thg fya;=j iEu f;dr;=rlau iEu mß.Klhla yrydu .uka lsÍug yels neúks' A yd C mß.Kl 2l w;r B mß.Klh we;akï B yer A yd C fofokdg f;dr;=re yqjudre l< fkdyel' fï ioyd Micro computer fyda Mainframe computer l<d;=rlska Ndú;d fõ' 

Tree Topology

fuu l%ufhaÈ Host mß.Klhla i|yd mß.Kl 2la iïnkaO fõ' tõ' fojkqj iúlrk mß.Klh Micro mß.Kl úh yel'jev lghq;= uOH.; l< wdh;k i|yd fuh jvd;a 

wog mß.Kl fkÜj¾la mdvu wjidkhs¡

fuys fojk mdvu fu;kska msúi n,kak¡

fuu mdvï ud,dj Tnfj; f.k tkafka R.D.pkaosu úisks