Photo of Milford Sound in New Zealand

Jun 27, 2015

Computer Network - Lesson 03

http://www.aluth.com/2015/06/computer-network-lesson-03.html
mß.Kl cd,lrKh
03 fjks fldgi¡


Thd,g wms f.k wd m<uq iy fojk mdvï ne¨jkï oeka uQ,sl wjfndaOhla ;sfhkjd fudloao fï fkÜj¾lska lshkafka lsh,d¡

wms ;j ÿrg;a fï .ek oek.uq¡
  • o;a; iïfma%Ik udOHh'
o;a; iïfma%IkfhaÈ m%Odk udOHhla f,i ÿrl:k udOHh yeÈkaúh yel' tfy;a thg jvd ;dlaIKfhka ÈhqKq ñf,ka wêl udOHhka cd,lrKfhaÈ Ndú;d fõ'

1.  Twisted Pair Cable
2.  Coaxial Cable
3.  Fiber Optic Cable
4.  Microwaves
5.  Satellite


 1. Twisted Pair Cable  

ÿrl:k /yeka lsysmhlska iukaú; hq.,hla fufia yÿkajhs' úoHq;a jYfhka we;sjk n,mEu wfkHdakH jYfhka lmd yeÍu ioyd lïì tl u; tl wUrd ;sîu ksid fï kñka yeÈkafõ' fuh b;d ,dNodhs l%uhla fõ' Ethernet keue;s  l%uhg mß.Kl cd,.; lsÍfu§ fuu Twisted pair udOHh b;d ckm%sh fõ' fuu udOHh j¾. 2la oelsh yel'

ndysr n,mEï j,g Tfrd;a;= fok Shielded Twisted pair (STP) jYfhkao ndysr n,mEï j,g Tfrd;a;= fkdfok wdldrhg ieliQ Unshielded Twisted pair (UTP) jYfhks' Network Card tflys RJ-45 socket tl UTP iúlsÍu ioyd ksmojd we;' fuu udOHfha o;a;  iïfma%Ik fõ.h 10Mbps isg 100
Mbps w.hla .kS'






  2 . Coaxial Cable  


f.dvke.s,s ;=, cd, iliSu ioyd fuu jh¾ fhdod .efka' Ethernet keue;s m%isoaO LAN l%ufha Twisted pair j,g wu;rj Coaxial Cable o fhdod .kq ,nhs' Network Card muKla Ndú;d lr cd, ieliSfïÈ fïjd fhdod .kq ,nhs'









  3. Fiber Optic Cable  
 

fuu udOHh flaYkd,sld ;;ajfhka we;s ùÿre kd, j,ska ksmojd we;' kj ;dlaIKh wkqj fïjd ;kkq ,nhs' fïjd f,day fkdjk ksid wl=Kq ìh we;s ia:dk j,g jeo.;a fõ' fuys o;a; iïfma%Ikh wdf,dalfha m%fõ. isoaodka;hg wkqj isÿ fõ' tkï mQ¾K wNHka;r mrdj¾;kh keue;s isoaOdka;h mdol lr f.k ;sfí' wdf,dalfha fõ.hg iudkj o;a; .uka lrk ksid fuu udOHh b;d fõ.j;a fõ'

ix{d ÿ¾j, ùulska f;drj 2km la ÿrla f.khdu ioyd th úfYaIfhka Ndú;d fõ' fuh fndfydaúg wka;¾cd, lghq;= ioyd Ndú;d lrk w;r ÿrl:k udOHh ioydo Ndú;d fõ' fuh ixLHdxl ix{d úldYkh ioyd jeo.;a fõ'







,hsÜ is.ak,a fuu l=vd ;ka;= ;=, .uka lrk wdldrh¡




  4. Micro Wave   


wê ixLhd; úoHq;a pqïNl ;rx. fï kñka yÿkajhs' fïjdgo wdf,dalfha fõ.fhka .uka l< yel' tajd f¾Çhj .uka lrkq ,nhs' m%dfoaYsh jYfhka lrkq ,nk f;dr;=re iïfma%IkfhaÈ fuu l%uh ks;r Ndú; fõ' WAN j¾.fha cd, ;ekSu i|yd fuh Ndú;d lrhs'

  5. Satellite   

mD:súhg by,ska N%uKh fjñka f;dr;=re iïfma%IKhg uÕÛ mE§u ioyd pkaøsld j,g yelshdj we;' fujeks pkaøsld ksYaÑ; Wil isg úfYaIs; fõ.hlska mD:súh jfÜ N%uKh fjñka mD:súhg idfmalaIj ksYap,j mj;S' tu ksid fmdf,dfõ we;s pkaøsld yqjudre uOHia:dk j,g fuu pkaøsld fhduqj mj;S' tu j¾.fha pkaøsld 3la Ndú;d lr f,dalh mqrd f;dr;=re yqjudre l< yels nj ;drld úoHd{fhl= jk wd;¾ iS' la,d¾la uy;d m%ldY lr we;'


WAN
j¾.fha cd, ;ekSu ioyd pkaøsld ;dlaIKh wksjd¾h wx.hla fõ¡ wmrg ;=, we;s ikaksfõok fiajd imhk wdh;k fuu ;dlaIK ndú;d lrhs¡

y;rjk mdvu fu;kska msúi n,kak¡ bosßfhaoS fuu mdvï u.ska lreKq /ila ,ndoSug lghq;= lrk w;r wo mdvñka Tn hula oek .;a;dkï Tfí woyia my;ska odkak wu;l lrkak tmd¡



 
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