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Introduction of Data Representation Methods in the Computer system
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How binary numbers represent decimal values
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6.
fzpdpapy; juTfis vLj;Jiuf;f
,Uk vz;fspd; gad;ghL fzpdpapy; epuy;fSf;nfd ,Uk vz;fs; gad;gLj;jg;gLk; re;jh;g;gnkhd;iw Nehf;FNthk; rptg;G> gr;ir> ePyk; Mfpa %yepwq;fis NtWgl;l msTfspy; fye;J gy;NtW epwr;Nrh;khdq;fis ngwyhk;. ,t;thwhd %yepwq;fis Red, Green, Blue (RGB) 0 - 255 tiuahd ngWkhdq;fspy; tifFwpj;Jf; fhl;lyhk;. cjhuzkhf fzpdpapy; jahhpf;fg;gl;l Mtznkhd;Wf;F gpd;dzpahf fUk;Cjh (Dark Purple) epwj;ij ,lNtz;Lnkdpd; ehk; fzpdpapy; RGB ngWkhdq;fs; KiwNa “135> 31> 120” vd Colour picker rhsuj;jpy; cs;spl Ntz;Lk;. ,t;thW cs;spLk; “135> 31> 120” Mfpa gjpd;k vz;fs; KiwNa fzpdpapy; 100001112, 111112,11110002 vd tif Fwpf;fg;gLk;. fzpdpapy; epuy;fs; vLj;Gf;fhl;lg;gly;
7.
gjpd;k> ,Uk> vz;k>
gjpdWk vz;Kiwikfs;.
8.
gjpd;k vz; Kiwik myF
(Unit) jdpahd nghUNs myF vdg;gLk;. cjhuzkhf khk;gok;> xU &gh ehzaf;Fw;wp Mfpad myF vdg;gLk;. ,yf;fk; (Number) ,J myfpid my;yJ msit (Quantity) tifFwpf;Fk; FwpaPlhFk;. mb (Basic / Radix) vz; Kiwikapy; gad;gLj;jg;gLk; FwpaPLfspd; vz;zpf;if me;j vz; Kiwikapd; mb vdg;gLk;. me;jnthU vz;KiwikapdJk; mb gjpd;k vz;fspdhy; fhl;lg;gLk;. 0 – 9 tiuahd ,yf;fq;fisf; nfhz;l gjpd;k vz; Kiwikiag; (Decimal Number) gad;gLj;jp Nkw;nfhs;Sk; fzpjr;nra;iffis ehk; rpW guhaj;jpypUe;J fw;Ws;Nshk;. cjhuzkhf kpd;> ePh> njhiyNgrpf; fl;lzq;fs; md;whlf; nfhLf;fy; thq;fy; Mfpatw;wpd;NghJ gjpd;k vz;fisNa ehk gad;gLj;JfpNwhk;. gjpd;kvz; Kiwikf;Fhpa ,yf;fq;fs; gpd;tUk; mll;ltizapy; fhl;lg;gl;Ls;sd. vz;Kiwik gjpd;k / gj;jpid mbahff; nfhz;l vz;Kiwik mb 10 gad;gLj;jg;gLk; ,yf;fq;fs; 0,1,2,3,4,5,6,7,8,9 gjpd;k vz; Kiwikf;Fhpa ,yf;fq;fs;.
9.
gjpd;k vz; Kiwikapy;
mlq;fpAs;s vz;nzhd;W Mf;fg;gl;Ls;s tpjj;ij mwpe;Jnfhs;Nthk;. cjhuzk; : - 25 vDk; vz; cUthfpAs;s tpjj;ij ghh;g;Nghk; 25 vDk; vz;; 20>5 Mfpa vz;; ,ize;J cUthfpAs;sJ. ,jidg; gpdtUkhW fhl;lyhk; ,t;thwhd 100 , 101 , 102, ………… Mfpa ,lg;ngWkhdq;fs; gjpd;kvz; Kiwikapd; kjpg;Ngw;Wk; fhuzpfs; (Weighting factors) vdg;gLk;. ,e;j vz;iz vz;rl;lj;jpy; vLj;Jf;fhl;l KbAk;. 5 x 100 = 5 2 5 2 x 101 = 20 25 25 = 20 + 5 = (2 x 10) + (5 x 1) = (2 x 101) + (5 x 100) gjpd;k vz; Kiwik gjpd;k vz;iz tifFwpj;jy;
10.
gjpd;k vz; Kiwik cjhuzk;
1 :- 302.75 102 101 100 10-1 10-2 - kjpg;Ngw;Wk; fhuzp 3 0 2 7 5 = (3 x 102) + (0 x101) + (2 x 100) + (7 x 10-1) + (5 x 10-2) = (3 x 100) + (0 x 10) + (2 x 1) + ( ) + ( ) = 300 + 0 + 2 + + = 300 + 0 +2 + 0.7 + 0.05 = 302.75 7 10 5 100 7 10 5 100
11.
,Uk vz; Kiwik
(Binary Number System) fzpdpf;F juT> kw;wk; mwpTWj;jy;fs; Mf vz;fis cs;spLk;NghJ ehk; gad;gLj;Jk; gjpd;k vz;;fs; fzpdpahy; 0>1 vd khw;wPL nra;ag;gLk; ,e;j 0>1 Mfpa vz;fisf; nfhz;l vz; Kiwik ,Uk vz;Kiwik vdg;gLk;. ,Uk vz;Kiwikapy; cs;s ,yf;fq;fs; gpd;tUk; ml;ltizapy; jug;gLs;sJ. vz;Kiwik gjpd;k / gj;jpid mbahff; nfhz;l vz;Kiwik mb 2 gad;gLj;jg;gLk; ,yf;fq;fs; 0,1, kpd; Rw;W ,Uk vz; Kiwikf;Fhpa ,yf;fq;fs;
12.
,Uk vz; Kiwik
(Binary Number System) cjhuzkhf 111011012 vd;gijf; fUJNthk;. 20, 21, 22, 23, ……… Mfpa ngWkhdq;fs; ,U ,Ukhd Kiwikapd; kjpg;Ngw;Wq; fhuzpfs; vdg;gLk;. ,e;j vz;iz cUtpy; fhl;bathW ,uz;il mbahff; nfhs;l vz; rl;lj;jpYk; fhl;lyhk;. ,Uk vz;fis vOJk;NghJ mjd; mbiaAk; vOj Ntz;Lk;. vdpDk;> ehk; gad;gLj;Jk; gjpd;k vz;fis vOJk;NghJ mbiaf; Fwpg;gplj; Njitapy;iy. fzpdpj; njhopDl;gtpaypy; ,Uk vz; Kiwik kpf Kf;fpakhdjhFk;. mJ fzpdpapd; mbg;gil mstPl;L myfhd gpw;W (bit) ,id cUthf;Fjypy; gq;fspg;Gr; nra;Ak;. ,e;j vz; Kiwikapy; fhzf;$ba rpwpa ngWkhdk; 0 my;yJ 1 Mf ,Uf;Fk;. ,e;j rpwpa myF vdg;gLk;. ,Uk vz;fis tifFwpj;jy;
13.
vz;k vz; Kiwik
(Octal Number System) 0,1,2,3,4,5,6,7,8 Mfpa vl;L ,yf;fq;fSk; gad;gLj;jg;gLk; vz; Kiwik vz;k vz;Kiwik vdg;gLk. cjhuzkhf: 2368 ,idf; fUJNthk;. vz;Kiwik gjpd;k / gj;jpid mbahff; nfhz;l vz;Kiwik mb 8 gad;gLj;jg;gLk; ,yf;fq;fs; 0,1,2,3,4,5,6,7 vz;k vz; Kiwikapd; ,yf;fq;fs;. 80, 81, 82, 83, ……… Mfpa ngWkhdq;fs; vz;k vz; Kiwikapd; kjpg;Ngw;Wk; fhuzp vdg;gLk;. ,e;j vz;;iz gpd;tUkhW vlil mbahff; nfhz;l vz; rl;lj;jpy; vLj;Jf; fhl;lyhk;. vl;il mbahff; nfhz;l vz;fis tifFwpj;jy;
14.
gjpdWk vz;Kiwik (Hexa
– Decimal Number System) fzpdp ,Uk vz;fisg; gad;gLj;JfpwJ. ,jid kdpjh; tpsq;fpf; nfhs;tJ fbdkhFk;. MfNt> ,Uk vz;fis tpl ,yFtpy; gpuNahfpf;fj;jf;f gjpdWk vz;fs; gad;gLj;jg;gLk;. nghJthf ,uz;L iffspYKs;s 10 tpuy;fisg; gad;gLj;jp vz;ZtJ toikahFk;. cq;fsJ iffs; ,uz;bYk; 16 tpuy;fs; cs;snjdf; nfhs;Nthk;. ,g;NghJ fzpj;jy;fSf;nfd 16 ,yf;fq;fisg; gad;gLj;jyhk;. gjpdWk vz;Kiwikapy; 0 – 9 tiuahd gj;J ,yf;fq;fSk; A,B,C,D,E,F Mfpa vOj;Jf;fSk; gad;gLj;jg;gLk;. ,q;F 10>11>12>13>14>15 Mfpa vz;fs; KiwNa A,B,C,D,E,F Mfpa vOj;Jf;fshy; gpujpepjpj;Jtg;gLj;jg;gLfpd;wd. Gjpd;k vz;fs; 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 gjpdWk vz;fs; 0 1 2 3 4 5 6 7 8 9 A B C D E F gjpd;k> gjpdWk vz;fspd; xg;gPL gjpdWk vz;Kiwikapd; ,yf;fq;fs; gpd;tUk; ml;ltiz my jug;gl;Ls;sJ vz;Kiwik gjpd;k / gj;jpid mbahff; nfhz;l vz;Kiwik mb 16 gad;gLj;jg;gLk; ,yf;fq;fs; 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F gjpdWk vz; KiwikapYs;s ,yf;fq;fs;
15.
gjpdWk vz;Kiwik (Hexa
– Decimal Number System) gjpdWk vz;Kiwikapd; kpfg;nghpa vz;zhd 15 ,id ,Uk vz;zpy; fhl;Lk;NghJ 4 gpw;Wfspy; fhl;lyhk;. ,jw;fika 4 gpw;W nfhz;; vz;zpw;Fg; gjpyhf gj;jpid mbahff;nfhz;l vz;Kiwikapd; vz;nzhd;iwg; gad;gLj;jyhk;. ,Uk> gjpdWk vz;fSf;fpilapyhd njhlh;G gpd;tUk; ml;ltizapy; fhl;lg;gl;Ls;sJ. fzpdpapd; Memory Address ,id tifFwpf;f gjpdWk vd; gad;gLj;jg;gLk;. cUtpy; fhl;lg;gl;thW fLk; Cjh epwj;Jf;fhd ‘#871f78’ vDk; FwpaPl;il mtjhdpf;f KbAk;. ,q;F epwj;Jf;Fhpa ngWkhdk; # vDk; FwpaPl;LlNd Muk;gpf;Fk;. ,e;jg;ngWkhdk; fzpdpapy; gjpdEk vz;zpf;fiapNyNa tifFwpf;fg;gLk;. mjhtJ NkNy Fwpg;gpl;lthW ‘#871f78’ vd mike;jpUf;Fk; . ,q;F RGB Mfpatw;wpw;Fhpa ngWkhdq;fis 0 – 255 tiuahd gjpd;k vz;fspy; toq;f KbAk;. ve;jnthW epwj;jpdJk; ngWkjpia ‘#’ ….. “ &H “ (ampersand) vDk; FwpaPl;ilg; gad;gLj;jpg; gpuNahfpg;gpd; mg;nghWkhdk; gjpdWk vz;zhFk;. gpd;tUk; ml;ltizapy; fLk; Cjh epwj;Jf;Fhpa gjpdWkg; nWkhdKk; RGB ngWkhdKk; fhl;lg;gl;Ls;sJ. fUk Cjh epwj;Jf;Fhpa gjpdWkg; ngWkhdk;
16.
gjpdWk vz;Kiwik (Hexa
– Decimal Number System) cjhuzkhf 15E16 ,izf; fUJNthk; ,q;F 160, 161, 162, 163,……… Mfpa ngWkhdq;fs; gjpdWk vz;Kiwikapy; kjpg;Ngw;Wk; fhuzp (Hexadecimal Weighting factors) vdg;gLk;. ,e;j vz;iz gpd;tUkhW mb gjpdhiwf; nfhz;l vz; rl;lj;jpy; tifFwpj;Jf; fhl;lyhk;. mb 16 ,jw;Fhpa vz;rl;lj;jy; tifFwpj;jy;
17.
gjpdWk vz;Kiwik (Hexa
– Decimal Number System) vz; KiwikfSf;fpilapyhd njhlh;G
18.
,yf;fj;jpd; mjpAr;r> kpff;Fiwe;j
nghUSila ,lg;ngWkhdq;fs; gjpd;k vz;fs;> epiwnaz;fs; Mfpatw;wpd; cr;r> Fiwe;j epiyg; ngWkhdq;fis ,uz;L Kiwfspy; ngwyhk;. Fwpg;gpl;l epiwnaz;iz ,lkpUe;J tykhf thrpf;Fk;NghJ tyJ gf;fj;jpYs;s ngWkhdk; kpff; Fiwe;j nghUSila ngWkhdkhf miktJld; ,lJ me;jj;jpYs;s G+r;rpak; my;yhj ngWkhdk; mjpAr;rg; ngWkhdkhFk;. jrk vz;zpy; jrkg;Gs;spf;F tyg;GwkhfTs;s me;jj;jpYs;s G+r;rpaky;yhj ngWkhdk; kpff;Fiwe;j nghUSila ngWkhdkhFk;. ,lg;gf;f me;jj;jpYs;s G+r;rpaky;yhj ngWkhdk; mjp$ba nghUSila ngWkhdk; vdf; Fwpg;gplg;gLk;. vz;nzhd;wpd; mjp$ba> kpff;Fiwe;j nghUSila ,lg;ngWkhdq;fs;
19.
mjpf nghUSila ngWkhdKk;
(MSD – Most Significant Digit) kpff; Fiwe;j nghUSila ngWkhdKk; (LSD – Least Significant Digit) epiwnaz;nzhd;wpd; my;yJ jrk vz;nzhd;wpd; mjpf nghUSila ngWkhdKk; kpff;Fiwe;j ngWkhdKk; ml;ltizapy; jug;gl;Ls;sJ. vz; MSD LSD 329 3 9 1237.0 1 7 58.32 5 2 0.0975 9 5 0.4 4 4 vz;nzhd;wpd; mjp$ba> kpff;Fiwe;j ,lg;ngWkhdq;fs; ,Uk> vz;k> gjpdWk vz;fSf;F mjp$ba> kpff;Fiwe;j nghUSila ngWkhdq;fisf; fhZk;NghJ. gjpd;k vz;fSf;Ff; iff;nfhs;sg;gl;l KiwNa filg;gpbf;fg;gLk;. gpd;tUk; vz;fspd; kpff;Fiwe;j nghUSila ,yf;fj;ijAk; mjp$ba nghUSila ,yf;fj;ijAk; Fwpg;gLf. 1) 5687010 2)154.0110 3)23.0808 4)AD23916 5)0.001102 nraw;ghL
20.
mjpf nghUSila ngWkhdKk;
(MSD – Most Significant Digit) kpff; Fiwe;j nghUSila ngWkhdKk; (LSD – Least Significant Digit) ,Uk vz;Kiwikf;F kl;LNk mjp$ba> kpff; Fiwe;j nghUSila gpw;W gad;gLj;jg;gLk;. jrkk; nfhz;l ,Uk vz;fspYk; epiw ,Uk vz;fspYk; ,J ,uz;L Kiwfspy; ngwg;gLk;. Fwpj;jnthU epiwnaz;iz ,lkpUe;J tykhf thrpf;Fk; NghJ tyJ me;jj;jpYs;s ngWkjp kpff; Fiwe;j nghUSila gpw;whf miktJld; mNj me;jj;jpYs;s G+r;;rpaky;yhj ngWkhdk; mjpf nghUSila gpw;whFk;. ,Uk jrk vz;zpy; jrkf; Fwpf;F tyJ gf;fj;jy; Nra;ikapYs;s G+r;rpaky;yhj ngWkhdk; kpff; Fiwe;j nghUSila gpw;W Mf miktJld; jrkf; Fwpf;F ,lJ gf;fj;jpy; mike;Js;s G+r;rak; my;yhj ngWkhdk; mjpf nghUSila gpw;whFk;. gpd;tUk; vz;fspd; kpff;Fiwe;j nghUSila ,yf;fj;ijAk; mjp$ba nghUSila ,yf;fj;ijAk; Fwpg;gLf. 1) 10002 2)0111012 3)0.110012 4)1.00102 5)0.001102 nraw;ghL vz;fspd; mjp$ba> mjpFiwe;j gp;w;W
21.
gjpd;k vz;fis ,Uk>
vz;k> gjpdWk vz;fshf khw;wPL nra;jy;
22.
gjpd;k vz;iz NtW
mb KiwfSf;F khw;wPL nra;jy; ehk; fzpdpapy; cs;spLk; juTfs; midj;Jk; fzpdpapdhy; ,Uk vz;Kiwikapd; ,yf;fq;fs; 0>1 MfNt ,dq;fhzg;gLk;. mjhtJ mbgj;ijf; nfhz;l vz;fis NtW mbfSf;F khw;wPLnra;a mwpe;jpUg;gJ Kf;fpakhdjhFk;. ,q;F> gjpd;k vz;fis ,Uk vz;fs;> vz;k vz;fs;> gjpdWk vz;fs; Mf khw;wPL nra;tJ gw;wp mwpe;J nfhs;Nthk;. gjpd;k vz;fis ,Uk vz;fshf khw;wPL nra;jy; gjpd;k vz;fis vz;k vz;fhsf khw;wPL nra;jy; gjpd;k vz;fis gjpdWk vz;zhf khw;wPL nra;jy; gjpd;k ,Uk vz;k gjpdWk
23.
gjpd;k vz;fis ,Uk
vz;fshf khw;wPL nra;jy; gjpd;k vz;iz ,Uk vz;zhf khw;wPL nra;Ak;NghJ gjpd;k vz;zpd; kPjp 0 MFk; tiu ,uz;lhy; tFj;J mjd; kPjpfis tyJ gf;fj;jpy vOjpf;nfhs;s Ntz;Lk;. gpd;dh; ,t;thW vOjg;gl;l kPjpfs; midj;ijAk; KbtpypUe;J Muk;gk; tiu xOq;fhf vOJtjd; %yk; ,Uk vz;izg; ngw;Wf;nfhs;syhk;. cjhuzk;: 1210 vDk; vz;iz ,Uk vz;zhf khw;wPL nra;Nthk;. Kjypy; ,e;j vz;iz 2 My; tFj;J kPjpfis vOjpf; nfhs;Sq;fs;. cjhuzk;: 4610 ,id ,Uk vz;zhf khw;wPL nra;f. gpd;dh; ngwg;gl;l kPjpfs; midj;ijAk; KbtpypUe;J Muk;gk; tiu vOjpd; nfhs;f. 1210 = 11002 gpd;tUk; gjpd;k vz;fis ,Uk vz;fshf khw;wPL nra;f. 1) 15510 2) 47210 3) 116310 nraw;ghL
24.
gjpd;k vz;fis vz;k
vz;fhsf khw;wPL nra;jy; ,g;NghJ <T 0 MFk;tiu jug;gl;l vz;iz 8 ,dhy; tFj;J fpilf;Fk; kPjpia KbtpypUe;J Muk;gk;tiu vOjpf;nfhs;Nthk;. cjhuzk;:- 15810 ,id vz;k vz;zhf khw;wPL nra;Nthk;. Kjypy; ,t;ntz;iz 8 ,dhy; tFj;J kPjpia vOjpf;nfhs;f. gpd;dh; tFf;fg;gl;l kPjpapid ,WjpapypUe;J Muk;gk; tiu xOq;fpy; vOjpf;nfhs;f. 15810 = 2368 fPNo jug;gl;Ls;s gjpd;k vz;fis vz;k vz;fshf khw;wPL nra;f 1) 15510 2) 47210 3) 116310 nraw;ghL
25.
gjpd;k vz;fis gjpdWk
vz;zhf khw;wPL nra;jy; ,q;F <T 0 MFk;tiu 16 ,jdhy; tFj;J fpilf;Fk; kPjpia ,WjpapypUe;J Kjy; tiu vOjpf;nfhs;f. cjhuzk; 1:- 3810 vd;Dk; vz;iz gjpdWk vz;zhf khw;wPL nra;f. ; cjhuzk;: 2:- 4710 ,id gjpdWk vz;zhf khw;wTk; Kjypy; ,tntz;ia 16 ,dhy; tFj;J kPjpia vOjpf;nfhs;s Ntz;Lk 3810 = 2616 gpd;tUk; gjpd;k vz;fis gjpdWk vz;fshf vOJf. 1) 25610 2) 47810 3) 196310 nraw;ghL gpd;dh; tFf;fg;gl;l kPjpfis ,WjpapypUe;J Kjy; tUk;tiu xOq;fpy; vOjpf;nfhs;f. 4710 = 2F16
26.
,Uk> vz;k> gjpd;k
vz;fSf;fpilapyhd khw;wPL ehk; ,jw;F Kd;dh; gjpd;k vz;fis> ,Uk> vz;k> gjpdWk vz;fshf khw;wPL nra;Njhk;. ,g;NghJ ,Uk vz;fisg; gjpd;k vz;fshsTk; vz;k vz;fisg; gjpd;k vz;fshfTk; gjpdWk vz;fisg; gjpd;k vz;fshfTk; khw;wPL nra;tijg; ghh;g;Nghk;. vz; KiwikfSf;fpilapyhd khw;wPL
27.
,Uk vz;fis gjpd;k
vz;fshf khw;wPL nra;jy; cjhuzk;:- 11012 vd;Dk; vz;iz gjpd;k vz;zhf khw;WNthk;. gpd;tUk; ,Uk vz;fis gjpd;k vz;fshf khw;wPL nra;f. 1) 1012 2) 1110101102 3) 10100101112 nraw;ghL
28.
vz;k vz;fis gjpd;k
vz;fshf khw;wPLnra;jy; cjhuzk; :- 12758 vd;Dk; vz;iz gjpd;k vz;zhf khw;wPL nra;jy; gpd;tUk; vz;k vz;fis gjpd;k vz;fshf khw;wPL nra;f. 1) 2308 2) 7458 3) 20658 nraw;ghL
29.
gjpdWk vz;fis gjpd;k
vz;fshf khw;wPL nra;jy; cjhuzk; :- AB216 vDk; vz;iz gjpd;k vz;zhf khw;wPL nra;jy; 32916 vDk; vz;iz gjpd;k vz;zhf khw;wPL nra;jy; cjhuzk; :- gpd;tUk; vz;k vz;fis gjpd;k vz;fshf khw;wPL nra;f. 1) 1A16 2) 7EF16 3) A4916 nraw;ghL
30.
,Uk vz;iz gjpd;k
vz;zhf khw;wPL nra;jy; ,t;thW vz;k vz;Kiwikapy; fzpj;j ,yf;fq;fisAk; 3 gpw;Wfs; nfhz;l vz;fspdhy; fhl;lyhk;. mb 8 vz; Kiwikapy; gad;gLj;jg;gLk; ,yf;fq;fSf;F xg;ghd ,Ukvz;fs; gpd;tUk; ml;ltizapy; fhl;lg;gl;Ls;sd. vz;k vz;fs; Gjpd;k vz;fs; ,Uk vz;fs; 0 0 000 1 1 001 2 2 010 3 3 011 4 4 100 5 5 101 6 6 110 7 7 111 vz;k ,yf;fq;fisg; gjpd;k kw;Wk; ,Uk vz;fspy; fhl;Ljy; mUfpy; fhl;lg;gl;Ls;s ml;ltizf;fika vz;k vz;fis ,Uk vz;fshff; fhl;Lk;NghJ %d;W gpw;Wfs; gad;gLj;jg;gLk; (8 = 23) vz;k vz;Kiwikapy; gad;gLj;jg;gLk; ,yf;fq;fshd 0> 1> 2> 3> 4> 5> 6> 7 Mfpatw;wpy; kpfg; nghpa ,yf;fk; 7 MFk;. 7 vDk; vz;iz 1112 vd; ,Uk vz;fspy; vOjyhk;. ,jw;fika vz;k vz;Kiwikapy; kpfg;nghpa ,yf;fkhd 7 ,id 3 gpw;Wfs;nfhz;;l ,Uk vz;fspdhy; tifFwpf;f KbAk;.
31.
,Uk vz;iz gjpd;k
vz;zhf khw;wPL nra;jy; ,g;NghJ ehk; ,Uk vz;fis vz;k vz;fshf khw;Wk; Kiwiag; ghh;g;Nghk;;. cjhuzk;:- 10111012 vDk; vz;iz vz;k vz;zhf khw;wPL nra;Nthk; Kjypy; tyJ mw;jj;jpypUe;J ,lJ me;jk;tiu %d;W gpw;Wf;fshf Ntwhf;fpf; nfhs;f. ,lJ me;jj;jpYs;s gpw;Wj; njhFjpapy; %d;W gpw;Wfs; ,y;iynadpy; 0 I Nrh;j;Jg; G+uzg;gLj;Jf. vy;yhj; njhFjpfSf;Fkhpa vz;k ,yf;fq;fisg; gad;gLj;jp jdpj;jdpNa vOJf. gpd;dh; mj;njhFjpia vz;k ,yf;fq;fisg; gad;gLj;jp jdpj;jdpNa vOJf. ,t;tpyf;fq;fis ,lJgf;f me;jj;jpypUe;J tyJgf;f me;jk;tiu xOq;Fkiwapy; vOJf. nraw;ghL gpd;tUk; ,Uk vz;fis vz;k vz;fshf khw;wPL nra;f 1) 100110012 2) 1111001112 3) 101010101102
32.
,Uk vz;fisg; gjpdWk
vz;zhf khw;Wjy; gjpdWk vz;Kiwikapy; gad;gLj;jg;gLk; FwpaPLfspy; “F” ,dhy; tifFwpf;fg;gLk; ngWkhdk; cr;r vz;zaTg; ngWkhdj;ijf; nfhz;l ,yf;fkhFk;. ,jid 11112 vd;Dk; ehd;F gpw;Wfisf; nfhz;;l ,Uk vz;fspy; fhl;lyhk;. gjpdwk vz;Kiwikapy; gad;gLj;jg;gLk; ,yf;fq;fSf;F xg;ghd ,Uk vz;fs; ml;ltizapy; fhl;lg;gl;Ls;sd. mUfpy; cs;s ml;ltizapy; mika gjpdWk vz;fis ,Uk vz;fspdhy; fhlLk;NghJ ehd;F gpw;Wfs; gad;gLj;jg;gLk; (8 = 24) gjpd;k ,yf;fq;fis gjpdWk> ,Uk vz;fs; %yk; fhl;Ljy;
33.
,Uk vz;fisg; gjpdWk
vz;zhf khw;Wjy; cjhuzk; :- vd;Dk; vz;iz gjpdWk vz;zhf khw;wk; nra;jy;.; Kjypy; tyJGw me;j;jpypUe;J ,lJGw me;jk;tiu ehd;F gpw;Wf;fs; nfhz;l njhFjpfshfg; gphpj;Jf; nfhs;f. xt;nthU njhFjpf;FkhW gjpdWk vz;izj; jdpj;jdpNa vOjpf; nfhs;f. mt;ntz;fis ,lJ me;jj;jpypUe;J tyJ me;jk; tiu xOq;fpy; vOjp mbiaAk; Fwpf;f. cjhuzk; :- vd;Dk; vz;iz gjpdWk vz;zhf khw;wk; nra;jy;t; nraw;ghL gpd;tUk; ,Uk vz;fis gjpdWk vz;fshf khw;wf 1) 110110102 2) 111110011012 3) 100111000112
34.
vz;k vz;fis ,Uk
vz;fshf khw;Wjy; NkNy vz;k vz;fis ,Uk vz;fshff; fhl;Lk;NghJ %d;W ,yf;fq;fshff; fhl;lyhk; vdf; fw;Nwhk; ,jw;fika vz;k vz;fspYs;s xt;Nthh; ,yf;fj;ijAk; mb ,uz;bw;F khw;wp %d;W ,yf;fq;fs; nfhz;;ljhf vOjNtz;Lk;. cjhuzk;:- 4578 vd;Dk; vz;iz ,Uk vz;zpw;F khw;Wjy; Kjypy; vz;k vz;zpd; midj;J ,yf;fq;fisAk; %dW gpw;Wfs; nfhzljhf vOJf. ,uz;lhtjhf me;j gpw;Wfs; midj;ijAk; xd;whf vOjp vz;k vz;fSf;Fhpa vz;fis vOJf. nraw;ghL gpd;tUk; vz;k vz;fis ,Uk vz;fshf khw;wp vOJf 1) 108 2) 2458 3) 7068
35.
vz;k vz;fis gjpdWk
vz;fshf khw;wPL nra;jy; ,jd;NghJ vz;k vz;fs; Kjypy; ,Uk vz;fshff; fhl;lg;gl;L gpd; mit gjpdWk vz;fshf khw;wg;gLk;. cjhuzk; :- 105716 vd;Dk; vz;iz gjpdWk vz;zhf khw;Wf. Kjypy; gjpdWk vz;zpYs;s vy;yh ,yf;fq;fisAk; %d;W gpw;Wfspy; vOJf. fpilf;Fk; ,Uk vz;iz tyJ gf;fj;jpypUe;J ,lJgf;fkhf gphpj;Jf; nfhs;f. xt;nthU njhFjpapYk; cs;s gjpdWk vz;fis vOJf. nraw;ghL fPNo jug;gl;Ls;s vz;k vz;fis gjpdWk vz;fshf khw;Wf 1) 3208 2) 4758 3) 16738
36.
gjpdWk vz;fis ,Uk
vz;zhf khw;wPL nra;jy; gjpdWk vz;KiwapYs;s ve;jnthU vz;Zk; ehd;F gpw;Wfs; nfhz;l vz;fshf vOjg;gl KbAnkd Kd;dh; ePq;fs; fw;Ws;sPh;fs;. MfNt gjpdWk vz;iz ,Uk vz;zhf khw;wPL nra;Ak;NghJ mjd; vy;yh vz;fSk; ,uz;L gpw;Wfs; nfhz;l ,Uk vz;fspy; fhl;;lg;gl Ntz;Lk;. cjhuzk; 7416 vd;Dk; vz;iz ,Uk vz;zhf khw;Wf. 2AE16 vd;Dk; ,Uk vz;zhf khw;Wf nraw;ghL gpd;tUk gjpdWk vz;fis ,Uk vz;fshf khw;wPL nra;f 1) 7816 2) B2C16 3) 4DEF16
37.
gjpdWk vz;fis ,Uk
vz;zhf khw;wPL nra;jy; ,q;F Kjypy; gjpdWk vz;iz ,Uk vz;zhf khw;wPL nra;J gpd;dh; vz;k vz;fshf vOjg;gLk;. cjhuzk; 23A16 vDk; vz;iz vz;k vz;zhf khw;wPL nra;jy; nraw;ghL gpd;tUk; gjpdWk vz;fis vz;k vz;fshf khw;wPL nra;f 1) 32016 2) A7B16 3) 10ED16
38.
juTj; Njf;fq;fis (Data
Storage) mstpLtjw;Fg; gad;gLj;jg;gLk; myFfs; gpw;W (bit) :- fzpdpapy; juTfisr; Nrkpf;fg; gad;gLk; kpfr; rpwpa myF gpw;W (bit) MFk; ,J vd;Dk; nrhw;fspypUe;J cUthf;fg;gl;ljhFk;. igl;L (byte) :- 8 gpw;Wfs; xU igl;L (byte) vdg;gLk;. miu igl;L (Nibble) :- miuigl;L (Nibble) gpw;W> igl;L Nghy mjpfstpy; gad;gLj;jg;gLtjpy;iy. igw;wpd; miuthrpNa ,t;thW miof;fg;gLk;. fpNyh igl;L (Kilobyte): - ,J 1024 (1024 = 210 ) igl;Lfisf; nfhz;ljhFk;. ,J KB my;yJ Kbyte vd vOjg;gLk.; nkfh igl;L (Megabyte) :- ,J 1024 (1024 = 210 ) fpNyh igl;Lfisf; nfhz;ljhFk;. mNj Nghy; 1048576 igl;Lfisf; nfhz;ljhFk;. ,J MB my;yJ Mbyte vd vOjg;gLk;.
39.
juTj; Njf;fq;fis (Data
Storage) mstpLtjw;Fg; gad;gLj;jg;gLk; myFfs; fp`h igl;L (Giga byte) :- 1024 nkfh igl;Lfisf; (1024 MB) nfhz;lJ fp`h igl;L MFk;. ,J GB my;yJ G byte vd vOjg;gLk;. nuwh igl;L (Terabyte):- 1024 fpfh igl;Lfisf; (1024 GB) nfhz;lJ igl;L MFk;. ,J TB my;yJ Tbyte vd vOjg;gLk;. nguh igl;L (Petabyte) :- 1024 nuwh igl;Lfisf; (1024 TB) nfhz;lJ nguh igl;L MFk;.
40.
juTj; Njf;fq;fis (Data
Storage) mstpLtjw;Fg; gad;gLj;jg;gLk; myFfs; nfhs;ssit mstpLk; myFfs;
41.
Jizf; $Wfspd; juTf;
nfhs;ssT (Capacities of Data Storage) gy;NtW juTj;Njf;fr; rhjdq;fspd; nfhs;ssT xd;Wf;nfhd;W NtWgLk;. ,e;j Jizr;rhjdq;fshy; Mw;wg;gLk; gzpfSk; xd;Wf;nfhd;W NtWgl;litahFk;. ,q;F ehk; gy;NtW tifg;gl;l rhjdq;fspd; nfhs;ssT gw;wp mwpe;Jnfhs;Nthk;. Njf;ffr; rhjdq;fspd; nfhs;ssT
42.
juTg; ngWtopf; fjp thrpf;Fk;NghJ
vOJk;NghJk; Jizr; rhjdq;fspDs; Eioa vLf;Fk; Neuk; khWgLk;. gpd;tUk; cUtpypUe;J mjid tpdq;fpf;nfhs;syhk;. juTg; ngWtopf; fjp
43.
xU gpw;Wf;fhd nrythFk;
gzk; (Cost per unit Storage) Njf;fr;rhjdq;fspy; juTfisf; fsQ;rpag;gLj;Jk;NghJ xU gpw;WfSf;Ff; nfhLf;fg;gLk; gzk; cgfuzq;fSf;Nfw;g NtWgLk;. cjhukhf gjpNtl;L epidtfj;jpy; Njf;ff; epidtfj;jpYk; mjpf nryT Vw;gLk;. gpd;tUk; thpg;glj;jpy ,it xg;gPl;L hPjpahff; fhl;lg;gl;Ls;sd. xU gpw;Wf;fhd Vw;gLk; nryT
44.
fzpdpf; FwpKiwfs; (Coding
Systems in Computers) cUtpy; fhl;lg;gl;lthW fzpdpapy; gy;NtW juTfis cs;spLk;NghJ fzpdp %yk; mj;juTfs; 0>1 Mfpa ,yf;fq;fshyhd gy;NtW Nfhyq;fshf khw;wg;gLk;. ,jw;fika ehk; jl;lr;Rr; nra;Ak; ,yf;fq;fs; (Numeric) vOj;Jf;fs; (Alphabetic) tpNrl FwpaPLfs; (Special Characters) Nghd;w tbtq;fs; kw;Wk; xyp Mfpad fzpdpapd; Njf;fr; rhjdq;fspy; fsQ;rpag;gLj;jp itf;fg;gl ,Ukf; FwpKiw gad;gLj;jg;gLk;. ePq;fs; ,e;j mj;jpahaj;jpy; “A” vDk; vOj;ij cs;spLk;NghJ mJ fzpdpapy; 1000 0001 vd khw;wpL nra;ag;gLk; vdf; fw;Ws;sPh;fs; mJ “A” vDk; vOj;Jf;Fhpa ,Ukf; FwpKiwahFk;. ,jpy; mlq;fpAs;s gpw;Wfspd; vz;zpf;if 7 MFk;. ,t;thW xt;nthU juTf;nfdTk; ntt;NtW gpw;Wf; Nfhyq;fspidf; nfhz;l Nfhh;itfs; gad;gLj;jg;gLk;. xt;nthU FwpKiwf;Fkhd gpw;Wfspd; vz;zpf;if khWgLk;. ,jw;nfd ntt;NtW FwpKiwfs; cs;sd. mit tUkhW. BCD - Binary Coded Decimal ASCII - American Standard Code for Information Interchange EBCDIC - Extended Binary Coded Decimal Interchange Code Unicode - xw;iwf; FwpKiw fzpdpapy; cs;splg;gLk; juTfSk; mj; juTfs; fzpdpapy; vLj;Jf;fhl;lg;gLk; tpjKk;
45.
,Uk FwpKiwg; gjpd;k
(BCD – Binary Coded Decimal) ,e;jf; FwpKiw Muk;gfhyj;Jf; fzpdpfspy; gad;gLj;jg;gl;lJ. ,e;j FwpKiwapy; xU ,yf;fk; ehd;F gpw;Wfshy; tifFwpf;fg;gLk;. ,J gjpd;k vz;fis kl;Lk; tifFwpf;fg; gad;gLj;jg;gLk;. ,jd;%yk; 16 FwpaPLfis (24 = 16) tifFwpf;f KbtJld; 0 – 9 tiuahd 10 ,yf;fq;fSf;Fnkd BCD FwpKiw ml;ltizapy; fhl;lg;gl;Ls;sJ. cjhuzk; 3710 vDk; ,yf;fj;jpd; BCD ngWkhdq;fis vOJf gjpd;k vz; BCD ngWkhdk; 0 0000 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 nraw;ghL gpd;tUk; gjpdWk vz;fSf;Fhpa BCD ngWkhdq;fis vOJf 1) 302 2) 2136 3) 17295
46.
jfty; ,ilg; ghpkhw;wj;Jf;fhd
mnkhpf;f juf; FwpKiw (ASCII) Kjypy; ,e;j FwpKiwapd;NghJ fzpdpapy; cs;splg;gLk; juTfs; fzpdpay; 7 gpw;Wfs; nfhz;;l ,Uk vz;fshy; tifFwpf;fg;gLk;. ,e;j FwpKiwiag; gad;gLj;jp 128 top ,ay;Gfis tifFwpf;fyhk;. fzpdpj; jftw; rhjdq;fs; Nghd;wtw;wpy; ghlj;ij (Text) tifFwpf;f ASCII FwpKiw mnkhpf;f Njrpa ju epWtdj;jpdhy; (American National Standerds Institite – ANSI) ,dhy; cUthf;fg;gl;L epakg;gLj;jg;gl;Ls;sJ. cjhuzk; :- ghlj; juTfs; (Text) - School vDk; nrhy;iy rhtpg;gyifapYk; rhtpfis mOj;jp cs;spLk;NghJ fzpdp mjid thq;fpf; nfhs;Sk; tpjj;ijf; fhl;Lf. 1) Kjypy; ,e;j FwpaPLfSf;F chap gjpd;k vz;fis vOJf. S - 83 c – 99 h – 104 o – 111 l -108 2) ,e;j xt;nthU gjpd;k vz;fSf;Fk; chap ,Uk vz;fis vOJf. S – 1010011 c – 1100011 h – 1101000 0 – 1101111 l – 1101100 3) FwpKiwia Koikahf vOJf. S c h o o l 1010011 11000 1101000 1101111 1101111 1101100 nraw;ghL ICT vd;gjw;Fhpa ASCII FwpKiwia ,Uk vz;fspy; vOJf.
47.
EBCDIC (Extended Binary
Coded Decimal Interchange Code) ASCII FwpKiwiag; gad;gLj;jp 128 top ,ay;Gfis kl;LNk vOj KbAk;. EBCDIC FwpKiwiag; gad;gLj;jp 256 top,ay;Gfis vOjyhk;. ,q;F xU Fwp 8 gpw;Wf;fshy; Mf;fg;gl;l ,Uk vz;fshy; vOjg;gLk;. MfNt> ,e;j Kiwiag; gad;gLj;jp 256 top,ay;Gfis tifFwpf;f KbAk;. ,e;j FwpKiw IBM mainframe fzpdpfspy; gad;gLj;jg;gLk;. ,e;jf; FwpKiwapy; Mq;fpy Capital vOj;Jf;fs; 26 f;Fkhd xd;Wdf;nfhd;W NtWgl;l EBCDIC FwpaPLfSk; Simple vOj;Jf;fSf;F xd;Wf;nfhd;S NtWgl;l EBCDIC FwpfSk; cs;sdntd gpd;tUk; ml;ltizapd; njspthFk;. Mq;fpy mhpr;rtbapYs;s NgnuOj;Jf;fs;> rpw;nwOj;Jf;fs; Mfpatw;Wf;fhd EDCDIC ngWkhdq;fs;
48.
xw;iwf; FwpKiw (Unicode) fzpdpfspy;
juTfis vLj;Jf;fhl;l> ASCII FwpKiw%ykhf 128 top ,ay;Gfis EBCDIC FwpKiwiag; gad;gLj;jp 256 top ,ay;GfisAk; ngw;Wf;nfhs;s KbAk;. vdpDk;> rpq;fsk;> Ig;ghd;> rPd> jkpo; nkhopfspy; cs;s vOj;Jf;fs; 256 top ,ay;GfspYk; mjpfkhifahy; ,e;j FwpKiwfisg; gad;gLj;j ,ayhJ. 16 gpw;Wfs; nfhz;;l xd;Sf;nfhd;W NtWgl;l Fwpfs; 65536 ,id (216= 65536) tifFwpf;ff; $ba juepUzq;fSf;F mikthfj; jahh;gLj;jgl;l FwpKiaNa xw;iwf; FwpKiw vdg;gLk;. fPNoAs;s cUtpy; fhl;lg;gl;lthW rpq;fsk;> jkpo;> vOj;Jf;fis tifFwpf;fTk; tpNrl FwpaPLfs;> cUf;fs; Mfpatw;iw tifFwpf;fTk; xw;iwf; FwpKiw gad;gLj;jg;gLk; xw;iwf;FwpKiw gad;gLj;jg;gLk; re;jh;g;gq;fs;
49.
cjhuzk; :- gbk
(Image) juTfs; gpd;tUk; cUtpy; fhl;lg;gl;Ls;sJ kpf mzpj;jhf Njhd;Dk; mjpf cUg;ngUf;fg;gl;l gbkk; my;yJ xspg;glkhFk;. xspg;glk; nghpa fl;lq;fspdhy; Mf;fg;gl;l gy;NtW epwq;fs; nfhz;l Gs;spfspdhy; Mf;fg;gl;ljhFk;. ,t;thW glq;fs;> jpiug;glr; rl;lq;fs;> rpj;jpuq;fs; mirT+l;lr; rl;lfq;fs; Nghd;w fzpdp rpj;jputbtpyhd juTfs; gy;NtW epwq;fisf; nfhz;bUf;Fk; fPNo fhl;lg;gl;Ls;s glk; xd;Wf;nfhd;W NtWgl;l epwq;fisf; nfhz;ljhFk;. glq;fspy; cs;slf;fg;gl;Ls;s epwq;fSk; mtw;Wf;Fhpa ,Uk vz; ngWkhdq;fSk;
50.
cjhuzk; :- xypj;
(Sound) juTfs; fPNoAs;s cUtpy; fhl;lg;gl;lthW ,yj;jpuzpay; xypngWf;fpapd; %yk; ntsptplg;gLk; xyp> nghJthf xOq;fhd miyahf tif Fwpf;fg;gLk;. vdpDk;> fzpdpapy; cs;s midj;Jj; juTfSk; vz;zstpyhf juTfshifahy; mit igl;Lfspy; jahh;nra;ag;gLk;. ,t;thW xyp> ,yf;fKiwj; juthf khw;wPL nra;ag;gLk;. xypAk; ,t;thW 0>1 Mfpatw;why; mike;j gpw;Wf; Nfhywq;fspdhy; tifFwpf;fg;gLk;. xg;gspj; juthd xyp> ,yf;fKiwj; juthf khw;wPL nra;ag;gLk; tpjk;
51.
52.
1. “A” ngWk;
top ,ay;G ASCII FwpKiwapy; 1000001 vd tifFwpf;fg;gLnkdpd; “F” vDk; top ,ay;G tifFwpf;fg;gLk; ASCII FwpaPL ahJ? 2. BCD (Binary Coded Decimal) %ykhf tifFwpf;fg;gLk; kpfg;nghpa vz; ahJ? 3. gjpdWk vz;zhy; gpujpepjpj;Gtg;gLj;j Njitahd gpw;Wfspd; vz;zpf;if vt;tsT? 4. 10000102 %yk; ASCII ,y; “B” tifFwpf;fg;gLnkdpd; “L” ,d; %yk; tif Fwpf;fg;gLk; ASCII Fwp ahJ? 5. fzpdpapy; gad;gLj;jg;gLk; FwpKiwfs; ahit? mtw;iwg; gadgLj;Jtjd; ,d;wpaikahikia tpsf;Ff? nraw;ghL
53.
nghopg;G juTfis vLj;Jf;fhl;l
gad;gLj;jg;gLk; vz; Kiwikfs; fzpdpapy; gad;gLj;jg;gLk; FwpKiw
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