digital communication basics
TRANSCRIPT
-
7/28/2019 Digital Communication Basics
1/30
-
7/28/2019 Digital Communication Basics
2/30
-
7/28/2019 Digital Communication Basics
3/30
?
9%6 Aetrlhuotale
Dfscdfeh trfesmassale
0,3,4>6?
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
4/30
8
9%6 Aetrlhuotale
Mlhujftch trfesmassale
0,3,4>6?
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
5/30
Aetrlhuotale
Pbce trfesmattae` fey typc li cjcotraofj sa`efj lvcr f
trfesmassale jaec* tbc sa`efj as fttceuftch"hcorcfsch aefmpjatuhc! feh hastlrtchdy tbc trfesmassale mchaum
^rcscet watb fjj typcs li trfesmassale mchaum as fe
cjcotraofj sa`efj gelwe fs elasc
Xbc fmpjatuhc li tbc elasc sa`efj vfracs rfehlmjy watb
tamc feh fhhs atscji tl tbc cjcotraofj sa`efj dcae`
trfesmattch lvcr tbc jaec
Huc tl tbas elasc ciicot ft slmc stf`c tbc rcocavcr as uefdjctl hctcrmaec irlm tbc fttceuftch rcocavch sa`efj wbctbcr
tbc trfesmattch sa`efj wfs f daefry 6 lr >
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
6/30
9
9%6 Aetrlhuotale
Ciicot li fttceuftale* hastlrtale* feh elasc
0,3,4>6?
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
7/30
Aetrlhuotale
Xbc jcvcj li sa`efj ampfarmcet as hctcrmaech dy;
- tbc typc li trfesmassale mchaum
- tbc jce`tb li tbc trfesmassale mchaum
- tbc dfehwahtb li tbc mchaum- tbc dat rftc li tbc hftf dcae` trfesmattch
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
8/30
Xrfesmassale mchaf
Xbc typc li trfesmassale mchaum as amplrtfet* saeoc
vfralus typcs li mchaf bfvc haiicrcet dfehwahtb fssloaftchwatb tbcm
Xbc fssloaftch dfehwahtb wajj hctcrmaec tbc mfxamum datrftc tbft ofe dc usch
Xbc olmmle typcs li trfesmassale mchaf frc;- twl-warc lpce jaecs
- twastch-pfar jaecs
- Olfxafj ofdjc
- Lptaofj Iadrc
- _ftcjjatcs
- Xcrrcstrafj maorlwfvc
- Tfhal
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
9/30
Xwl-warc lpce jaecs
Ae twl-warc lpce jaecs cfob warc as aesujftch irlm tbc
ltbcr feh dltb frc lpce tl ircc spfoc
Xbas typc li jaec as fhcquftc ilr oleecotae` cquapmcet
tbft as up tl 3>m fpfrt usae` mlhcrftc dat rftcs "jcss tbfe*
sfy* 61%4gdps!
Xwl-warc lpce jaecs frc usch elrmfjjy tl oleecot f HXC
tl jlofj hftf oarouat-tcrmaeftae` cquapmcet "HOC!ilr
cxfmpjc mlhcm
Patb tbas typc li jaec* ofrc must dc tfgce tl fvlah orlss-
olupjae` li cjcotraofj sa`efjs dctwcce fhkfocet warcs ae tbc
sfmc ofdjc% Xbas as gelwe fs orlsstfjg
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
10/30
Xrfesmassale Mchaf Olppcr Parc
As tbc sampjcst trfesmassale mchaum7 cfob warc as
aesujftch irlm tbc ltbcr feh dltb frc lpce tl ircc spfoc%
Xbas typc li jaec as fhcquftc ilr oleecotae` cquapmcet tbft
as up tl 3> m fpfrt usae` mlhcrftc dat rftcs "jcss tbfe
61%4gdps!
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
11/30
Xrfesmassale Mchaf Sesbacjhch twastch pfar
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
12/30
Xwastch-pfar jaecs
Muob dcttcr ammueaty tl spuralus elasc sa`efjs ofe dc
fobacvch dy usae` tbc twastch-pfar jaec
Ae tbas f pfar li warcs frc twastch tl`ctbcr
Xbc prlxamaty li tbc sa`efj feh `rlueh rcicrceoc warcs
mcfes tbft fey aetcricrceoc sa`efj as paogch up dy dltb tbcsa`efj feh rcicrceoc warcs
Ai mujtapjc twastch pfars frc ceojlsch watbae tbc sfmc
ofdjc* tbc twastae` li cfob pfar watbae tbc ofdjc rchuocsorlsstfjg
Xwastch pfars frc suatfdjc ilr dat rftcs ae tbc lrhcr li
6Mdps lvcr sblrt hastfeocs "jcss tbfe 6>>m! feh jlwcr dat
rftcs lvcr jle` hastfeocs
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
13/30
Xrfesmassale Mchaf _bacjhch twastch pfar
feh olfxafj ofdjc
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
14/30
Ol-fxafj ofdjcs
Xbc jamatae` ifotlr li f twastch-pfarjaec frc ats ofpfoatyfeh f pbcelmcele gelwe fs tbc sgae ciicot
Fs tbc dat rftc li tbc trfesmattch sa`efj aeorcfscs* tbcourrcet ijlwae` ae tbc warcs tcehs tl ijlw lejy le tbc lutcrsurifoc li tbc warc* tbus usae` jcss li tbc fvfajfdjc orlssscotale
Xbas aeorcfscs tbc cjcotraofj rcsastfeoc li tbc warcs ilrba`bcr ircquceoy sa`efjs* jcfhae` tl ba`bcr fttceuftale
Ae fhhatale ft ba`bcr ircquceoacs mlrc sa`efj plwcr as jlst
fs f rcsujt lirfhaftale ciicots Bceoc ilr fppjaoftales tbft hcmfeh f ba`b dat rftc lvcrjle` hastfeocs* olfxafj ofdjc as litce usch fs tbctrfesmassale mchaum
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
15/30
-
7/28/2019 Digital Communication Basics
16/30
Lptaofj Iadrc Fjtblu`b olfxafj ofdjc sa`eaiaofetjy rchuocs tbc vfralusjamatae` ciicots* tbc mfxamum ircquceoy* feh bceoc tbc dat
rftc tbft ofe dc trfesmattch usae` f sljah olehuotlr*fjtblu`b vcry ba`b* as jamatch
Xbc lptaofj iadrc ofdjc haiicrs irlm dltb tbcsctrfesmassale mchaf ae tbft at ofrracs tbc trfesmattch dat
strcfm ae tbc ilrm li fijuotuftae` dcfm li ja`bt ae f `jfssiadrc
Ja`bt wfvcs bfvc f muob wahcr dfehwahtb tbfe cjcotraofjwfvcs* cefdjae` lptaofj iadrc ofdjc tl fobacvc trfesmassale
rftcs li buehrchs li Mdps At as usch ae tbc olrc trfesmassale ectwlrg li ^_XEs fehJFEs feh fjsl OFXY ectwlrgs
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
17/30
Lptaofj Iadrc
Ja`bt wfvcs frc fjsl ammuec tl cjcotrlmf`ectao
aetcricrceoc feh orlsstfjg Bceoc lptaofj iadrc ofdjc as cxtrcmcjy usciuj ilr tbctrfesmassale li jlwcr dat rftc sa`efjs ae cjcotraofjjy elasycevarlemcets* c%` stccj pjfets
At as fjsl dcae` usch aeorcfsae`jy wbcrc scouraty asamplrtfet* saeoc at as haiiaoujt pbysaofjjy tl tfp
Xbc ja`bt sa`efj as `cecrftch dy tbc trfesmattcr wbaob uscsf ja`bt-cmattae` halhc "JCH! lr jfscr halhc "JH!
Xbc rcocavcr uscs f ja`bt-scesatavc pbltlhalhc
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
18/30
Lptaofj iadrc
Xbc iadrc olesasts li twl pfrts; fe lptaofj olrc feh fe
lptaofj ojfhhae` watb f jlwcr rcirfotavc aehcx Ja`bt prlpf`ftcs fjle` tbc lptaofj iadrc olrc ae lec litbrcc wfys hcpcehae` le tbc typc feh wahtb li tbc olrcmftcrafj usch
Ae f mujtamlhc stcppch aehcx iadrc tbc ojfhhae` feh olrcmftcrafj cfob bfs f haiicrcet dut ueailrm rcirfotavc aehcx
Fjj tbc ja`bt cmattch dy tbc halhc ft fe fe`jc jcss tbfe tbcorataofj fe`jc as rcijcotch ft tbc ojfhhae` aetcrifoc feh
prlpf`ftcs fjle` tbc olrc dy mcfes li mujtapjc rcijcotales
Hcpcehae` le tbc fe`jc ft wbaob at as cmattch dy tbchalhc* tbc ja`bt wajj tfgc f vfrafdjc fmluet li tamc tl
prlpf`ftc fjle` tbc ofdjc
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
19/30
Lptaofj iadrc Xbcrcilrc tbc rcocavch sa`efj bfs f wahcr pujsc wahtb tbfetbc aeput sa`efj watb tbc hcorcfsc ae tbc mfxamum
pcrmassadjc dat rftc Xbas ciicot as gelwe fs haspcrsale
Haspcrsale ofe dc rchuoch dy usae` f olrc mftcrafj tbftbfs f vfrafdjc rcirfotavc aehcx
Xbas typc li iadrc as gelwe fs tbc mujtamlhc `rfhchaehcx iadrc
Ae tbas iadrc tbc ja`bt as rcirfotch dy fe aeorcfsae` fmluet
fs at mlvcs fwfy irlm tbc olrc Xbas bfs tbc ciicot li efrrlwae` tbc pujsc wahtb li tbcrcocavch sa`efj olmpfrch tl tbc stcppch aehcx iadrc
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
20/30
Lptaofj iadrc
Iurtbcr amprlvcmcet ofe dc ldtfaech dy rchuoae` tbcolrc hafmctcr tl tbft li f sae`jc wfvcjce`tb "?-6> m! sltbft fjj tbc cmattch ja`bt prlpf`ftcs fjle` f sae`jc pftb
Bceoc tbc rcocavch sa`efj wajj dc li olmpfrfdjc wahtb tltbc aeput sa`efj feh as ofjjch tbc mlelmlhc iadrc
Fjtcreftavcjy mujtapjc ba`b dat rftc trfesmassale obfeecjsofe dc hcravch irlm tbc sfmc iadrc dy usae` haiicrcet
prlplrtales li tbc lptaofj dfehwahtb ilr cfob obfeecj
Xbas mlhc li lpcrftale as gelwe fs wfvcjce`tb-havasale
mujtapjcxae` "PHM! Ssae` tbas dat rftcs ae cxocss li tces li @dps ofe dcfobacvch
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
21/30
Xrfesmassale Mchaf Lptaofj iadrc
trfesmassale mchaf
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
22/30
_ftcjjatcs
Ae sftcjjatc systcms tbc hftf as trfesmattch usae`
cjcotrlmf`ectao "rfhal! wfvcs tbrlu`b ircc spfoc F oljjamftch maorlwfvc dcfm* letl wbaob tbc hftf as
mlhujftch* as trfesmattch tl tbc sftcjjatc irlm tbc `rlueh
Xbas dcfm as rcocavch feh rctrfesmattch tl tbcprchctcrmaech hcstaeftales usae` fe le dlfrh oarouat
gelwe fs f trfesplehcr
F sae`jc sftcjjatc bfs mfey trfesplehcrs* cfob olvcrae` fpfrtaoujfr dfeh li ircquceoacs
F typaofj sftcjjatc bfs f dfehwahtb li 3>>MBz feh ofe
prlvahc mfey ba`b dat rftc hftf jaegs usae` XHM
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
23/30
_ftcjjatcs _ftcjjatcs frc wahcjy usch ilr hftf trfesmassalefppjaoftales rfe`ae` irlm aetcroleecotae` haiicrceteftalefj olmputcr olmmueaoftale ectwlrgs tl prlvahae`ba`b dat rftc pftbs tl jaeg olmmueaoftale ectwlrgs aehaiicrcet pfrts li tbc sfmc oluetry
Ae hftf olmmueaoftale fppjaoftales* f mlrc olmmleoleia`urftale aevljvae` f ocetrfj bud`rlueh stftale tbftolmmueaoftcs watb f eumdcr li `rlueh stftales hastradutchfrlueh tbc oluetry as usch
Cfob `rlueh stftale bfs f smfjj fetceef fssloaftch watb attypaofjjy 6 mctrc ae hafmctcr wbaob rcocavcs feh
trfesmats sa`efjs
Xypaofjjy tbc ocetrfj satc drlfhofsts tl fjj Y_Fts ft f datrftc li >%34 Mdps wbajc ae tbc rcvcrsc harcotale cfobY_FX trfesmats fs f jlwcr dat rftc li up tl 98 gdps
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
24/30
_ftcjjatcs Xl olmmueaoftc watb f pfrtaoujfr Y_FX "vcry smfjjfpcrturc tcrmaefj!* tbc ocetrfj satc drlfhofsts tbc mcssf`c
watb tbc ahcetaty li tbc aetcehch Y_FX ft tbc bcfh li tbcmcssf`c
Ae tbc ecxt `cecrftale li sftcjjatcs harcot Y_FX-tl-Y_FXolmmueaoftale as plssadjc
h
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
25/30
Xrfesmassale Mchaf
h jj h
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
26/30
Xrfesmassale Mchaf _ftcjjatc _ystcm; hftf
olmmueaoftales
T ha
http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
27/30
Tfhal Tfhal trfesmassale usae` jlwcr-ircquceoy rfhal wfvcs asfjsl usch ilr tbc ha`atfj aeilrmftale trfesmassale ae pjfocli tbc iaxch-warc jaegs
Cxfmpjc fppjaoftales aeojuhc mldajc tcjcpbley feh mlrc`cecrfj mldajc hftf fppjaoftales
F rfhal trfesmattcr "dfsc stftale "D_!! as jloftch ft f
iaxch-warc tcrmaeftale plaet Xbas prlvahcs f olrhjcss jaeg tl tbc iaxch-warc tcrmaeftale
plaet ilr fey bfehsct,tcrmaefj tbft as watbae tbc "rfhal!iacjh li olvcrf`c li tbc dfsc stftale
Mujtapjc dfsc stftales must dc usch ilr wahcr mldajcolvcrf`c
Xbc olvcrf`c frcf li tbc D_ as rcstraotch bceoc wahcrolvcrf`c as fobacvch dy frrfe`ae` mujtapjc dfsc stftales aef ocjj struoturc
X a a M ha
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
28/30
Xrfesmassale Mchaf
Tfhal trfesmassale usae` f jlwcr-ircquceoy rfhal wfvcs as
fjsl usch ilr tbc trfesmassale li ha`atfj aeilrmftale ae pjfoc
li iaxch-warc jaegs lvcr hastfeocs up tl scvcrfj gajlmctcrs
X a a M ha
http://www.blog.oureducation.in/http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
29/30
Xrfesmassale Mchaf
Pahcr olvcrf`c as fobacvch dy frrfe`ae` mujtapjc dfsc
stftales ae f ocjj struoturc7 tbc sazc li cfob ocjj vfracs feh as
hctcrmaech dy suob ifotlrs fs tbc bfehsct,tcrmaefj hcesaty
feh jlofj tcrrfae
T ha
http://www.blog.oureducation.in/http://www.blog.oureducation.in/ -
7/28/2019 Digital Communication Basics
30/30
Tfhal
Cfob dfsc stftale lpcrftc usae` f haiicrcet dfeh li
ircquceoacs irlm ats eca`bdlurs _aeoc tbc iacjh li olvcrf`c as jamatch at as plssadjctl usc ats ircquceoy dfeh ae ltbcr pfrts li tbcectwlrg
Fjj dfsc stftale watbae f rc`ale frc oleecotch dyiaxch-warc jaecs usae` tbc mldajc swatobae` ocetrcs"M_Os!
Xbas as oleecotch tl ltbcr M_Os ae ltbcr rc`alesfeh tl tbc iaxch tcjcpblec ectwlrg
http://www.blog.oureducation.in/