CBSE Class 11 Computer Science Sample Paper Set 24

Q.No.1:

      a. Define Analog an Digital Computer

      b. why analytical engine often called the pioneer computer.

      c. what are the different types of printer. Explain in brief

      d. What is the difference between copying and moving files and folders

      e. What functions are performed by an operating system as a resource manager

Q.No.2:

      a. Define the term ASCII and ISCII.

      b. What are the different Data representation schemes

      c. Explain different types of RAM

      d. What do you mean by ports. Explain in brief all types of ports 

      e. Why primary memory is termed as ‘destructive write’ memory but ‘non-destructive read’ memory

      f. Explain the different features of OOP. 

Q.No.3:

      a) Find the output of the following program. 

            #include<iostream.h>

              void Withdef(int HisNum=30)

                   {

                      for(int I=20;I<=HisNum;I+=5)

                      cout<<I<<”,”;

                      cout<<endl;

                   }

              void Control(int &MyNum)

                  {

                     MyNum+=10;

                     Withdef(MyNum);

                  }

              void main()

                  {

                        int YourNum=20;

                        Control(YourNum);

                        Withdef();

                        cout<<”Number=”<<YourNum<<endl;

                   }

      b. void main()

                {

                   char *NAME=”a ProFiLe!”;

                   for(int x=0;x<strlen(NAME);x++)

                   if(islower(NAME[x]))

                      NAME[x]=toupper(NAME[x]);

                   else

                   if(isupper(NAME[x]))

                    if(x%2!=0)

                       NAME[x]=tolower(NAME[x-1]);

                   else

                      NAME[x]--;

                      cout<<NAME<<endl;

                   }

      c. How Many time the following code will be executed

                int i = 1 ;

                i= i - 1 ;

                while(i)

                    {

                         cout<<”it’s a while loop”;

                              i++ ;

                    }

       d. What is difference between Actual parameter and Formal parameter? Give an example in C++ to illustrate both type of parameters.

       e. Explain different jump statements with suitable example.

       f. rewrite the following code using do-while loop

            int i ;

            for(i=0;i<10;i++)

             {

                 cout<<i; i++ cout<<i;

              }

       g. identify the error(s) in the following code fragment

           char ch; int v=0,o=0;

            cout<<”enter character”;

            while ((ch>=’A’ && ch<=’Z’)||( ch>=’a’ && ch<=’z))

                  {

                    switch(ch) {

                    case ‘a’:

                    case ‘e’:

                    case ‘i’:

                    case ‘o’:

                    case ‘u’:

                    case ‘U’: ++v; break; default : ++o;

                   }cout<<v;<<” ”<<o;

                  }

Please refer to attached file for CBSE Class 11 Computer Science  Sample Paper Set X