User:Neeti m/B.Sc.(H)Chemistry-part-II/House Exam Computer XII-2009

'''B.Sc. (Hons.)/II-(NS)''' CHEMISTRY-Paper-XII (Computers and their Applications to Chemistry) House Examination-2009 Acharya Narendra Dev College

Time: 1Hour				 	Maximum Marks :25 1.	Write the full form of the following: (a)	EBCDIC (b) BIT (c) CPU (d) DOS (e) RAM (1x5) 2.	Indicate the error in the following program. Write the corrected program. 10 INPUT N 20 FOR I = 1 TO N 30 S = 0 40 P = P* I 50 S = S+ I 60 NEXT J 70 PRINT P, S 80 END (5) 3.	Write the output of the following program. 10 A = 5 20 B = 10 30 C = A + B 40  D = C/A 50 C = A 60 PRINT C,D 70 END (2) 4.	Convert the following into binary number (i) 30	(ii) 25.25 (2) 	5.	Convert the following binary numbers into decimal numbers: (i) 1010	(ii) 110.10 (2) 	6.	Express the following as BASIC expressions: (i) d = (b2 − 4ac)	 (ii) y = │x│	 (iii) y = {ax3 + (b+ c) x2 − 2x}/ 2a (3)