University of Mumbai 2007 B.A Economics Computer Systems and Applications - Question Paper

Computer Systems and Applications
March 2007
Time: three HoursMarks: 100
NB:
Attempt either Part A or Part B. ques. no. one is compulsory.
In part I, attempt any 2 ques. from ques. Nos. two to five
In part 11, attempt any 2 ques. from ques. Nos. six to nine
All ans should be written in the identical answer-book.
Figures to right indicate maximum marks. All ques. carry equal marks
PART A
Q.1 (a) ans the subsequent in 1 sentence: three

(i) What is the function of control unit of CPU?
(ii) provide 2 examples of Operating System.
(iii) provide full form of ISP.
(b) ans the subsequent in C:
(i) elaborate the uses of getchar() and putchar() ? two
(ii) What is the difference ranging from break and continue? two
(iii) elaborate keywords in C? one
(c) State whether the subsequent are actual or false: - three

(I) In Windows 95, once a folder is created you can not alter its name.
(ii) In MS-WORD, obtain and change choice appears in Tools menu.
(iii) By default, MS-WORD saves a document in My Documents folder.
(d) ans the subsequent in FoxPro:
(i) discuss the use of: three
(1) INTO (II) DTOC( ) (iii) LTRIM()
(ii) discuss the following: two
(i) INPUT TO (ii) SET DEFAULT TO.
part —1
Q.2 (a) discuss briefly about the following: six
(i) HARD DISK (ii) TCP/IP PROTOCOL (iii) OPERATING SYSTEM.
(b) What is the output of the subsequent C program: four
#define m(y) y%2==0?2*y:y/2
main()
(int p=5, q=10, r=3;
q*=m(p);
r+=m(q);
p+=++q+r--;
printf("%d%d%d\n",p,q,r);)

(c) Write a C program to input cost of a machinery and then print a table showing year and depreciation for the 1st five years using reducing balance method. Rate of depreciation is 15 % six

Q.3 (a) ans in 1 or 2 lines the uses of: six
(i) MOUSE (ii) LAN (iii) INTERNET
(b) Rewrite the subsequent sequence of ifo statements using switch eight

If (code==l)printf("Mathematician\n");
else if(code==2)printf("Computer Programmer\n");
if (code==3)printf("Psychologist\n");
else printf("Doctor\n");

(c) Write a program in C to input 25 observations and then print Highest, least and Median. six
Q.4 (a) State whether the subsequent are actual or False: six

Earning:   Approval pending.