Introduction to Computer and Programming Concept

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Q1. Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.
Q2. Write the importance of operating system. Describe the working methodology of online and real-time operating system with the help of two examples of each.
Q3. Write a ‘C’ program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.
Q4. Write a ‘C’ functions to arrange the elements of an integer array in such a way that all the negative elements are before the positive elements. The array is passed to it as an argument.
Q5. Write a ‘C’ function to generate the following figure for n = 7.
1
1 3
1 3 5
1 3 5 7
1 3 5
1 3
1
The value of n is passed to the function as an argument. Print the triangle only if n is odd otherwise print an error message.

Q1. How is communication between computers established in Internet. What characteristics need to be defined in a communication protocol? Explain the physical and logical paths in a computer communication network also.
Q2. Define a structure to store roll no, name and marks of a student. Using the structure of above write a ‘C’ program to create a file “student.dat”. There must be one record for every student in the file. Accept the data from the user.
Q3. Using the “student.dat” of above write a ‘C’ program to search for the details of the student whose name is entered by the user.
1. In General purpose OS user cannot change which state of process?
2. Which addressing scheme is not common for 8085 & 8086 ?
3. A software that allows a personal computer to pretend is as a terminal is—
4. Which one of the following always resides in the memory?
5. 8085 is –
6. The process of loading the operating system from the secondary memory to primary memory is called as-
7. Which of the following allows devices on one network to communicate with devices on another network?
8. p++ executes faster than p+1 because—
9. main()
{
int *p ;
p=(int *)malloc(-10);
}
10. Which addressing scheme is not common for 8085 & 8086?
11. The number of address lines required to address 4k of memory are—
12. Where is CMOS setup stored?
13. main ( ){
char *a=”Hello”;
*a++ = h ;
printf(“%s\n”,a);
}
14. main()
{
for( printf(“a”) ; printf(“b”) ; printf(“c”) ) ;
}
15. The ……………….variable is not destroyed on exit from the function; instead its value is presented and becomes available again, when the function is next called. These variables are declared as …………………
16. Output of the printf(“%-2.3f\n”,17.23478) will be—
17. Suppose that ‘i’ is an integer variable whose value is 7 and ‘f ‘is floating point variable whose value is 8.5. Evaluate the expression: ( i + f)%4
18. What will be the output of the following?
#include
main ( )
{
int *i, *j, a=12, b=2,c;
c = (a=a+b, b=a/b, a=a*b, b=a-b);
i = &c;
printf(“%d”,–(*i));
}
19. The conversion characters for data input means that the data item is—
20. What is max data capacity for optical fiber cable?
21. In C, a Union is–
22. If you want to exchange two rows in a two dimensional array, the fastest way is to-
23. Study the following C program.
#include
…
}
What will be the value of n after the execution of the above program?
24. Study the following C program.
#include
main()
{
..
}
What will be the value of n after the execution of the above program?
25. Which of these is not a layer in OSI model?
26. The part of machine level instruction, which tells the central processor what was to be done is—
27. Which of the following holds the ROM, CPU, RAM and expansion cards?
28. The term ‘baud’ is a measure of the—
29. Subtracting (1010)2 from (1101)2 using 1st complement—
30. Using 2’s Complement, substraction, of (1010)2 from (0011)2 is—
31. The chief reason why digital computers use complemented subtraction is that, it—
32. In ______ OS, the response time is very critical.
33. The primary job of the operating system of a computer is to ________.
34. A program at the time of executing is called ________.
35. Multiprogramming systems ________.
36. The number of processes completed per unit time is known as __________.
37. Which of the following allows devices on one network to communicate with devices on another network?
38. Which of the following memories needs refresh?
39. FDDI is a—
40. What is the central device in star topology?
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