kj;jpakhfhzf; fy;tpj; jpizf;fsk;
fz;b
myFg; guPli
; r - 04
ghlk; : ICT Unit 3 Number System Neuk; : 1.30 kzp
gFjp – I
1. –102 ,uz;bd; epug;gpapy; vt;thW fhl;lg;gLk;.
(1) – 11001101 (2) 10011010 (3) 00110010 (4) 00110011 (5) -00110010
2. 1238 + 12316 =
(1) 6668 (2) 27616 (3) 354 (4) 374 (5) 50616
3. gpd;tUk; $w;Wf;fisf; fUJf.
A - ,uz;bd; epug;gpapidg; gad;gLj;jp +127 njhlf;fk; -128 tiuahd vz;fis gpujpepjpj;Jtg;gLj;jyhk;
B – 10010 vDk; ,uz;bd; epug;gp vz;zpd; jrk vz; ngWkhdk; -2 MFk;
C – 10010 vDk; Jtpj vz;zpd; jrk vz; ngWkhdk; 18 MFk;.
Nkw;jug;gl;ltw;Ws; rupahd $w;W/$w;Wf;fs; ahJ/ahit?
(1) A khj;jpuk; (2) B khj;jpuk; (3) C khj;jpuk; (4) A, B khj;jpuk; (5) B, C khj;jpuk;
4. ACD vDk; gjpdWk vz;zpw;Fr; rkdhd vz;k vz;; ahJ?
(1) 33158 (2) 43158 (3) 33138 (4) 53158 (5) 53058
5. 348 + AF16 =
(1) 207 (2) 2138 (3) CB16 (4) BB16 (5) 202
6. 111010.101 vDk; Jtpj vz;Zf;Fr; rkdhd vz;
(1) 72.418 (2) 58.625 (3) 3A.516 (4) 58.5 (5) 3A.4116
7. Ca vDk; vz;Zf;Fr; rkhdhd ASCII FwpaPL
(1) 10000111100001 (2) 11000011000011 (3) 1000001111000001
(4) 01000111100001 (5) 0100001111000001
8. -31 vDk; ,yf;fj;jpid 6 gpl; ePs xd;wpd; epug;gp kw;Wk; Fwpaplg;gl;l gpl; Kiwapd; fPo; Fwpg;gpl;lhy;.
(1) 011111> 100000 (2) 111111> 100000 (3) 100001> 111111 (4) 100000> -011111 (5) 100000> 111111
9. 1A0.A16 =
(1) 10101101.10102 (2) 10101101000.1012 (3) 253.58 (4) 416.625 (5) 5320.05
10. gpd;tUk; Jtpj ,yf;fq;fisf; nfhs;f
A - 01010100
B – 00110111
,it njhlu;gpy; gpd;tUk; $w;Wf;fis ftdj;jpy; nfhs;f
i. A – 84 kw;Wk; B – 55 jrk vz;fshFk; ii. A kw;Wk; Bapd; $l;Lj;njhif 100010112
iii. A kw;Wk; Bapd; $l;Lj;njhif 011000112
(1) i khj;jpuk; (2) ii khj;jpuk; (3) iii khj;jpuk; (4) ii, iii khj;jpuk; (5) i, ii khj;jpuk;
11. 610 ,d; ,uz;bd; epug;G (two’s complement) tbtj;ij tifFwpg;gJ vJ?
(1) 11111010 (2) 00000110 (3) 11111001 (4) 01011111 (5) 00000101
12 jrk vz; 949 w;Fr; rkdhd vz;
(1) 11100010012 (2) 3B516 (3) 11728 (4) 67128 (5) 1101111012
13. Jtpj vz; 101101.101 ,ypUe;J Jtpj vz; 11101.110 ,id fopj;jhy;
(1) 1111.111 (2) 1111.110 (3) 10000.111 (4) 1111.001 (5) 10000.001
14. 4.625 vDk; jrk vz;Zf;F rkdhd Jtpj vz;
(1) 100.001 (2) 100.110 (3) 100.111 (4) 100.101 (5) 100.1001
1 | Prepared by N.Prabaharan Highlands college, Hatton
15. ,uz;bd; epug;gp njhlu;gpy; gpd;tUk; $w;Wf;fis ftdj;jpy; nfhs;f
A – Neu; vz;fs; “0” j;JlDk; kiw vz;fs; “1” clDk; Muk;gpf;Fk;
B - - 42 ,d; ,uz;bd; epug;gp 11010110 C - - 42 ,d; ,uz;bd; epug;gp 11010101
Nkw;jug;gl;l $w;Wf;fSs; rupahdJ/rupahdit vJ/vit?
(1) A, B khj;jpuk; (2) A, C khj;jpuk; (3) A, khj;jpuk; (4) B khj;jpuk; (5) C khj;jpuk;
16. 2 ,d; epug;gp njhlu;gpy; gpd;tUk; $w;Wf;fis ftdj;jpy; nfhs;f
A – jug;gl;l Jtpj vz; N ,d; 2,d; epug;gpahdJ 28-N ,dhy; fz;lwpag;gLk;
B – jug;gl;l Jtpj vz; N ,d; 2,d; epug;gpahdJ jug;gl;l vz; N ,d; 1,d; epug;gpiaf; fz;L gpd;
mjDld; 00000001 ,idf; $l;ly;
C - ,uz;bd; epug;gpapy; 0 MdJ 00000000 kw;Wk; -1 MdJ 10000001 MFk;
Nkw;jug;gl;ltw;Ws; rupahd $w;W/$w;Wf;fs;?
(1) A, kl;Lk; (2) B kl;Lk; (3) A, B kl;Lk; (4) B, C kl;Lk; (5) A, B, C kl;Lk;
17. 8 gpl;fs; ePskhd 2,d; epug;gpiag; gad;gLj;jp gpujpepjpj;Jtk; nra;af; $ba vz;fs;
(1) (-256) - (+255) (2) (-255) - (+255) (3) (-128) - (+127) (4) (-254) - (+255) (5) 0 - (+255)
18. 11001> 1001> 111001 vd;gd ,uz;bd; epug;gp vz;fshFk;. ,t;ntz;fis rupahf gpujp epjpj;Jtk; nra;Ak;
vz; njhFjp gpd;tUtdtw;Ws; vJ?
(1) 25> 9> 57 (2) -6> -6> -6 (3) -7> -7> -7 (4) -25> -9> -57 (5) 25> -9> 57
19. -20> 15 mfpa gjpd;k ,yf;fq;fspd; ,uz;bd; epug;gp (two’s Complement) KiwNa ahJ?
(1) 00001111> 00010100 (2) 10010100> 10001111 (3) 10010100> 11110001
(4) 11101100> 00001111 (5) 10001111> 11110001
20. 27510 kw;Wk; 25010 Mfpa vz;fSf;F rkdhd ,yf;fq;fs;
(1) 4238 kw;Wk; FA16 (2) 4238 kw;Wk; 3718 (3) 21316 kw;Wk; FB16 (4) 11316 kw;Wk; 4728 (5) 4218 kw;Wk; FA16
20*2 = 40Marks
Part II
01. (a) -123.75 ,id ePz;l jrk vz;fis xw;iw rupEl;g gpujpepjpj;Jtg;gLj;Jk; (IEEE Floating Point
Single Precision Representation) Kiwapy; Fwpf;ifapy;.
(i) Sign bit ngWkhdk; ahJ?
(ii) 123.75 ,id Jtpj tbtpw;F khw;Wf.
10
(iii) NkNy (ii) ,y; ngwg;gl;l Jtpjg; ngWkhdj;ij epak tbtpw;F (Standard notation) khw;Wf.
(iv) NkNy (iii) ,y; ngwg;gl;l tYg; (Exponent) ngWkhdk; ahJ?
(v) gpd;dg; gFjpapid gpl; Kiwapy; Fwpj;Jf; fhl;Lf.
(vi) -123.75 ,id ePz;l jrk vz;fis gpujpepjpj;Jtg;gLj;Jk; (IEEE-32) tbtpy; Fwpj;Jf; fhl;Lf.
(b) 10110010 vDk; ,uz;bd; epug;gp vz;zpd; jrkk; ngWkhdk; 178 vd ckJ ez;gu; Fwpg;gpLfpd;whu;.
mtuJ $w;iw Vw;Wf; nfhs;fpd;wPuf ; sh? ckJ tpilia epahag;gLj;Jf.
(c) kiw vz;iz ,uz;bd; epug;gpapy; khw;Wtjw;fhf gad;gLj;jg;gLk; Kiwfs; ,uz;ilf; Fwpg;gpLf.
(d) tpdh 1 (ii) y; Fwpg;gpl;l Kiwfisg; gad;gLj;jp -100 vd;gjpid ,uz;bd; epug;gpapw;F khw;Wf.
12,2,3,3 Total 20Marks
02. (i) gpd;tUk; vz;fis gpl; rhu; ju;f;f ,af;fpfis gad;gLj;jp fzpf;Ff
(i) 24^56 (ii) 101>>3 (iii) 150 & 103
(ii) gpd;tUk; vz;fis jrk vz;fshf khw;Wf
(i) 101.0112 (ii) 76.458 (iii) 1B.C316
(iii) 1710 kw;Wk; (-610) Mfpatw;wpid 8 - gpw;Wf;fs; nfhz;l xd;wpd; epug;gp Kiwapy; vOJf. ckJ
fzpj;jypidf; fhl;Lf.
(vi) 8 - gpw;Wf;fs; nfhz;l xd;wpd; epug;gp Kiwapidg; gad;gLj;jp 1710 kw;Wk; (-610) Mfpatw;wpidf;
$l;Lf. ckJ fzpj;jypidf; fhl;Lf.
6,6,4,4 Total 20Marks
03. (a) (i) ASCII, Unicode Nghd;w Fwpaply; Kiwfs; Vd; fzdpapy; gad;gLj;jg;gLfpd;wJ?
(ii) 147.7510 ,id Jtpj tbtpw;F khw;Wf
(b) (i) -64, -65 vDk; gjpd;k vz;fis xd;wpd; epug;G tbtj;jpy; jUf. vz;iz tif Fwpg; gjw;F 8
bits Ig; gad;gLj;Jf.
(ii) NkNy ngwg;gl;l xd;wpd; epug;G vz;fis ,uz;bd; epug;G tbtj;jpy; fhl;Lf.
(iii) -64 - 65 vDk; fzpj;jiy fzpg;gpLk; Kiwiaj; jUf. …………………………………………
(iv) (iii) y; ePu; Fwpg;gpl;l fzpj;jiy 8 bits Ig; gad;gLj;jp nra;a KbAkh? fhuzk; jUf.
6,14 Total 20Marks
2 | Prepared by N.Prabaharan Highlands college, Hatton
