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8/11/2019 Potaov st I, lekce 6: Techniky penosu dat
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EZQL8 nm$kf +g% mrn %?
j$& & %k'(ofkm j$& & v +gm%ntflv/j$ ltgj$ zkt:jn j$& & vg mvn) ltgj$ sg :n$n)
vz +g:% v&r) lt? @l%%+ +g on: l%kjg '(% k 'nmf%
'krlt& onet nfe sn$gt
+g @l%%+ ? %g7 'krltk mno 7g mgtgonvkt vjg j$&
kfg tko %g% zmkfgok mnon%kf/? > (km) j$&%gmgtgo)+g
'rl%jl'0 fno mkt, )rg%/ o '(g%ns), sg l%tgr'rgt)+g +kon'nsfn)'%nst &t2Tsfnv
+gm%ntflv &t&Tsfnvk ttn 'nsfn)'%nstl sg sgtn) kftgr%ktlvk0 mf sg +g+lj$ [A
v/sfgm%/ sn)gt sg 'n)7l+g +kon zk gz'gnvkj
@mk+ '(gs%+l0 'n)7l+g sg z &tgo :nm)fn E, omg E +g
f n
o m k
t r : g j , ' k
o g t !
8];*5=8]5OMG8]MF
8/11/2019 Potaov st I, lekce 6: Techniky penosu dat
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EZQL8 F$gjo pnsfn$penst blt', tvnj
bfno mkt, g letg p gtnvek
kon pnf+eni '(gs%+l0 +gm%ntflv lt& tvn(
ong\jlg%t& 'nf&%n:) %kmtfgsg: j$krkotgrlstlo& * . C .] ;= C 8 .] ;5 C 8 .] ;* C .] ;;
C
tkonv/tn 'nf&%n: +g v&mfg% +l%/: 'nf&%n:g: tzv. j$krkotgrlstljo/: 'nf&%n:g:
%k'(. F FH;3!0 ] ;3 C ] ;K C ] * C;
v.sfgmogi g pnmf k &b+tgo v rnfl zk gz'gg% sg 'n)7l+g
z &tgo 'n mfg%
j$krkotgrlstljo/: 'nf&%n:g: j$ 'k%/ +l7 +kon 'nsfn)'%nst lt2
sj%npenstl mgtgojg sn$v+elok j
t:tn z'2sn g: +g :n7%mgtgonvkt0 v gj$%& s$f)o& j$& s flj$/:
'ntg: lt2 v gj$%& s$f)o& j$& mn vgflonstl
E lt2
omg E +g st)'g6j$krkotgrlstljo$n 'nf&%n:) v gj$%& s$f)o& j$& vgflonstl
EC; s 'rkvm'nmn %nst
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EZQL8 o j$& l ztr t :27g mn+t z%nv) pnmieon$ g0
:n7%nst, k & '(+g:jg mkf %k+gvn nmgslfktgfl, 7g : mktk nmgsfkt z%nv)jgf/ fno!
(g sg 'n:nj pntv &nve kjoenKfgm7giget ! spnfge g v*g n&eknven kon B5J ( B$tniktlj5gpgkt gJ$gst !
+mg n 'ntvrznvkj strktg1ll l 'ntvrznvkj sj$:k?! kotljo& +mg n jgf/ 'rntnonf 'rn zk+l t% s'nfg$flvnstl '(g%ns)
g9lst$ g vjg '&e.j% pntv &nvkjj% st ktg7l (B5J!02 gmentflv pntv &nve (ZtnpMQklt B5J! v&)7v +gm%ntflv 'ntvrznv % k '(gm nmgsf %: mkf $n fno) go %k ofkm%!
'ntvrzg% '(gmj$nz$n fno)G2 onetle$fe pntv &nve s ev ktgi (Cn-Akjo-E B5J!
v&)7v on%tl%) f%$n 'ntvrznv % k '(l n'konv % '(g%ns) rgtrk%s:lsln%! sgvrkj o :st), omg o j$& Tztr t mn fn
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EZQL8 8
Xntknvst L
vgrzg =.8, fgojg 3, sflmg*K
;K*3 &t2 ;K*3 &t2
OFD
'ntvrznv %
gmenm$j% k /pink st ktg7lg s%km%n sg l:'fg:g%t)+g
&fk 'n)7ltk %k'(. v 'rntnonfgj$ LX[TZX[ s'nfg%nstl Envgff +g+: m2sfgmog: +g 'nfnHm)'fg]% j$krkotgr on:)%lokjg
%lom& sg %g'(g% n :k s:r& sn)ks% egv.%nm+0
+g %gg gotlv% v stj$ s vt fktg%jTmn n) n r to& ##!
'(ofkm0 ;8 ltTs Jt$gr%gt
fno ;
OFD
z'n7m%'(g%ns)
t # OEZ Y ;** , asvgt% :gzgr& :gzl
fno&!
z'n7m%
sl1% f)tX AX
z'n7m% '(g%ns)
tOFD Y
K;,* as
t # OEZt # OEZ C t OFD C * d t X AX
g gotlv%nst Y
z'n7m%
sl1% f)tX AX
v :BE ( t%g egt!0t X5 X @GO,F Is
k g gotlv%nst jjk
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EZQL8 8
Xntknvst L
vgrzg =.8, fgojg 3, sflmg*3
on%tl%) f% 'ntvrznv % p nbfi gmentflv%n pntv &nve0
$nm sg +g% mn fno f%j$ st %lonfl mn st rnzfg$f/j$
kftg ektlvk p n n&fg%f st %ggokt %k 'ntvrzg%, kfg l$%gm 'nsfkt mkf fno&
tgm&0 +g t m(vg, %g7 '(l+mg 'ntvrzg% '(gmj$nzj$ fno2 vfkst%0 fno& sg 'nsfk+ sn)vlsfg, on%tl%) f% jn%tl%)n)sf&!
'rntn0 onetle$fe pntv &nve 4netle$n$s B5J ! 'ntvrzg% '(lj$ z k7 'nzm+l? z't%! ..
p kotljo kspgot+0 jn mfkt, om&7 %+ko 'ntvrzg% %g'(l+mg v2 gj %g n +g %g1ktlv%!-
:gzlt: +l7 :n$fn /t nmgsf %n vjg mkf j$ fno2 .. :n7% (g g%0
onetle$fe pntv &nve s ev ktgi RnHMkjoHE O ! nmgsf % sg vrkj z't? mn :stk, omg mn fn o 'n onzg%Tztr t, m fg sg
'nork)+g z%nv)! nm tn$ntn :stk t+. %otgr +l7 nmgsfk% fno& sg nmgsfk+ z%nv&
sgfgotlve npkonve Zgfgjtlvg g'gkt O ! nmg fg sg 'n)zg sgfgotlv%?! tg% fno, otgr/ &f 'n onzg% l ztrkjg%, 'ko
sg 'nork)+g +kon om& & o 7 m% j$& %gmn fn
fno ; fno * fno 5 fno =
OFD ;
OFD *
OFD 5
'n)7v 'rntnonf #FX z #FXTLX
#FX 'n)7vstk%mkrm%
#FX ):? vnfltgf%
4netle$ns B5J
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EZQL8 8
Xntknvst L
vgrzg =.8, fgojg 3, sflmg*G
% vrktg:
p lejlp0 'n onzg%/Tztrkjg%/ fno sg '(g%gsg z%nv)
k 'n %: sg 'nst)'% '(g% % sfgm)+j fno& otgr +l7 :n$f& /t nmgsf %& k t(g k l @s' % mnr)g%&!
v.%nm+0 +g tn +gm%nm) %k l:'fg:g%tkjl 'rn '(+g:jg +g tn +gm%nm)
om&7 '(l+:g 'n onzg%/ fno %g n :) %otgr/ fno v&'km%g? ov2fl ztr t!,%g:)s )of mkt mkf fno& mn )4gr2 k 'n)zg go %k n'konvk% zksf %'n onzg%$nTztrkjg%$n fno)
'rntn7g mkf fno& mnstk%g? z%nv) egv.%nmk0
'f/tv sg '(g%nsnvn) ok'kjltn) +l7 +gm%n) '(g%gsg% fno& sg '(g% z%nv)
nmgslfktgf
p`gijg
fno ; fno * fno 5 fno = fno K fno 3 fno G fno 5 fno = fno K fno 3
OFD;
OFD*
EOFD5
OFD5
OFD=
npkon ke! pgenspn"on#gedn bfno$
npkon ke! pgens `l% nmgsfke!jd bfno&
RnHMkjoHE O'(g%ns sg v kj &pt
o 'n onzg%:)Tztrkjg%:)fno)
'(g% sg z%nv) .
EZQL8
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Q
Xntknvst L
vgrzg =.8, fgojg 3, sflmg*
sgfgotlv% n'konv % p lejlp0
'n onzg%/Tztrkjg%/ fno sg '(g%gsg z%nv)
m fg sg 'nork)+g, +kon om& & o 7 m% j$& Tztr t %gmn fn +sn) '(g% g%& t& fno&, otgr +g t %g &f& '(g%gsg%& v.%nm+0
%g'f/tv sg '(g%nsnvn) ok'kjltn) +gm%ntflv fno& mkt sg %g'(g% z &tg%!
egv.%nmk0 'rn '(+g:jg +g tn % rn%+ fno&, '(g% g% 'n 'n onzg%:Tztrkjg%: fno), :)s )of mkt mn z sn &?mn )4gr2!, kfg +g t +g %g:27g z'rkjnv vkt
sg z'rkjnv %: :)s gokt %k n'konvk%/ '(g%ns 'n onzg%$nTztrkjg%$nfno)
nmgslfktgf
p`gijg
fno ; fno * fno 5 fno = fno K fno 3 fno G fno 5 fno fno < fno;8
OFD;
OFD*
EOFD5
)4gr
Zgfgjtlvg g'gkt On'ko)+g sg sgfgotlv%! 'n)zg
'(g%ns 'n onzg%$nTztrkjg%$nfno)
fno = fno K fno 3
OFD=
OFDK
OFD3
OFDG
OFD5
OFD
fno G fno 5
EZQL8
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Q
Xntknvst L
vgrzg =.8, fgojg 3, sflmg* t: (o , onflo mkf j$ mkt +gsj$n'g% '(l+:n)t tkotn tn )%1)+g v 'rntnonf) #FX %k trk%s'nrt% vrstv
[nK jnet nf
%g%@zo/:$rmfg:
EZQL8
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Q
Xntknvst L
vgrzg =.8, fgojg 3, sflmg5*
'(gmj$ zg% zk$fjg% mg n g*ge le%n p nbfi$, eg) $ &ge tno$
(zg% tno)0
'rn f:g: +g mls'rn'nrjg :gzlok'kjlt%:l :n7%nst:l nmgslfktgfgk '(+g:jg
+g+lj$ 'rn'n+g% s9! mn 'rn f:)%gvst)')+g > : mnstktg%n)ok'kjlt)
'(gmj$ zg% zk$fjg%0 'rn f:g: +g ok'kjltk 'rn'n+g%
st! :gzl nmgslfktgfg: k '(+g:jg: :27g /t %gmnstktg% k :27g
mn+t o zk$fjg% ttn st tktn s9 :27g /t zkt7nv %k tko
mkf :l '(g%ns&, otgr 'rn $k+
sn) 7% hhhh ok'kjlt% :n7%nstl nmgslfktgfg k'(+g:jg +sn) mnstktg% 'rn f:%gnvflv6)+!
g*ge ( ko pgmj%> &k%fjge!0
mn'(gm% tgj$%lo& s%k7 sg nvflv6nvkt tn, jn sg 'nsf mn st %g'nsfkt mn st tkonv mktnv tno&, otgr & z'2sn lf& zk$fjg%
on%ort%0 tgj$%lo& )'rkvnv % 'rnvnz)? trk_j jn%mltln%l%1! z't%nvkzg % tgj$%lo&
s%k7 sg z't% rgk1nvkt %k '(z%ko& zk$fjg% l g]'fljlt% z'r v&T$f g% nzk$fjg%!
n:gz) mkf v sf %
jne7gstlnejnet nf
+g @zo/:$rmfg:
+g @zo/:$rmfg:
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Xntknvst L
vgrzg =.8, fgojg 3, sflmg55
zk$fjg% &ptenvk&gbe tgj%elo+ 'nt(g )+ sg %+ko mnzvmt, 7g
mn fn o zk$fjg% '(g%nsnv st 'nt(g )+ %+kon) nr:) z't%vkz &
:n7%nstl0 nmgslfktgf mnstk%g g]'fljlt%
l% nr:kjl
v #FXTLX0 LF X z'r vk Zn)rjg)g%j$ +gm%nstrk%%/ v/o(lo? nm
s:rnvkg, 7g sg f7T+l7 %kstkfn +g$n zk$fjg% :nj sg %g'n)7v
mgm)ojg0 nmgslfktgf sl %+komn:&sf, 7g mn fn o zk$fjg% st
'rntnonf #FX0 om&7 %gmnstk%gvks 'ntvrzg%, l%tgr'rgt)+g tn
+kon zk$fjg% otgr z'2sn lf 'r v n% hhhh rgk1)+g '(gj$nmg: %k rg7l: sfnb
stkrt?
mnpgme tgj%elo+ %g'nt(g )+ 7 m%n) z't%n) vkz )
s%k7 sg )'rkvnvkt tg% 'rnvnz,otgr/ tg'rvg vst)')+g mn'(g%nsnv st v ngo v %, 7g o zk$fjg%
%gmn+mg n gj%0 tzv. t kRj jnemltlnele7
'rkj)+ s )rlt/: '(gm'nofkmg:n tn:, jn s9 +g t )%gsg? k%l7 & mn fn o +g+:) zk$fjg%
+kon &0 z% fk9o)? :n7%nstl0
t kRj s%kple7 'rnvnz, otgr/ +g %km fk9o)?, sg
s%k7 'nzmr7gt k '(g%st 'nzm+l
t kRj pnfljle7' tg / +g %k fk9 )?