11th Computer Science - First Mid Term Model Question Paper

 

FIRST MID TERM MODEL QUESTION PAPER – JULY 2025

CLASS : 11                                                                                       MARKS  : 50

SUB     : COMPUTER SCIENCE                                                       TIME     : 1.30 hrs

I. Choose the correct answer:                                                          10x1=10

1. Name the volatile memory...........

         a. ROM                 b. PROM               c. RAM                  d. EPROM

2. Expand POST

         a. Post on Self Test                  b. Power on Software Test

         c. Power on Self test                 d. Power on Self Text

3. What is the 1’s complement of 00100110?

         a. 00100110         b. 11011001         c. 11010001         d. 00101001

4. A+ A=............

         a. A                       b. 0                       c. 1                       d.

5. (10100110)₂=.........?₁₆

         a. A5                     b. B5                    c. A6                     d. B6

6. Match the following

         i) CD ROM            -        1) 4.7 GB

         ii) DVD                 -        2) 2.50 GB

         iii) Flash memory  -        3) 3.700 MB

         iv) Blu ray disc     -        4) 4.2 TB

         a. 4,1,3,2              b. 3,1,4,2              c. 3,4,1,2              d. 4,3,1,2

7. The file management system used by Linux is...............

         a. ext2                  b. NTFS                c. FAT                   d. NFTS

8. The shortcut key used to rename a file in windows.......

         a. F2                     b. F4                     c. F5                     d. F6

9. Which command is used to “paste”?

         a. Edità paste      b. view à paste     c. File à paste      d.  all the above

10. If i:=7 before the assignment i:=i*2. The value of i after the assignment is..........

         a. 2                       b. 7                       c. 14                     d. 49

II. Answer any 5 in the following questions:                                  5x2=10               

11. What is a computer?

12. Write the 1’s complement procedure.

13. What is HDMI?

14. What is a GUI?

15. How will you rename a file?

16. Distinguish between an algorithm and a process.

III. Answer any 5 in the following questions:                                 5x3=15

17. Write short note on impact printer.

18. Convert 150₁₀ into binary, then convert that binary number to octal.

19. Write the truth table of fundamental gates.

20. Differentiate PROM and EPROM.

21. Write a note on Multiprocessing.

22. Write a note on Recycle bin.

IV. Answer the following questions brief:                             3x5=15               

23. Explain the basic components of a computer with a neat diagram.

(OR)

      Find 1’s complement and 2’s complement for the following decimal number:

         a) -98          b) -135

24. Explain the derived gates with expression and truth table.

(OR)

      Explain the characteristics of a microprocessor.

25. List out the points to be noted while creating a user interface for an operating system.

(OR)

      Explain the versions of Windows Operating System.

 

 

Prepared by

M.Poovendiran.,M.sc.,M.Phil.,BEd.,PGDCA

PG. Asst in computer science