TILAK MAHARASHTRA VIDYAPEETH

 

QUESTION BANK OF COMPUTER ORGANIZATION AND NETWORKING

 

THIRD YEAR DIPLOMA SEMESTER - I

 

 

Question Bank

 

 

Question for 2 Marks

  1. What is Flip Flop?
  2. What is Multiplexer?
  3. What is Encoder?
  4. What is Decoders?
  5. What is Counter?
  6. What is instruction sequencing?
  7. What is instruction interpretation?
  8. What is Network?
  9. What is Protocols?
  10. What is MODEM?
  11. What is Modulation?
  12. What is Demodulation?

 

Question for 4 Marks

  1. Explain AND and OR Gate with truth table.
  2. Explain NAND and NOR gate with truth table.
  3. Explain JK Flip Flop.
  4. Explain D Flip Flop.
  5. What is Array logic?
  6. Explain arithmetic processors.
  7. Explain instruction sequencing.
  8. Explain instruction interpretation.
  9. What is control memory?
  10. Explain the importance of semiconductor RAM’s.
  11.  Explain in Brief about Magnetic disks.
  12. Explain in Brief about Magnetic tapes.
  13. Explain in Brief about Bubble memory.
  14. Explain the concept of Memory hierarchy.
  15. Explain the concept of Locality reference.
  16. What are the advantages of Peer to Peer network?
  17. What are the advantages of Client server network?
  18. What are the features of network?
  19. What is WAN?

 

Question for 6 Marks

  1. Describe Shift Register.
  2. Explain floating point arithmetic.
  3. Explain the concept of Pipeline processing.
  4. Describe hardwired control.
  5. Explain any three characteristics of memory device.
  6. Explain RAM organization.
  7. Distinguish between RAM and SAM.
  8. Explain, How the recording mechanism works?
  9. Explain, What is Paging?
  10. Explain any three features of Network?

 

 Question for 8 Marks

  1. Explain Basic CPU organization.
  2. What is the need of instruction sets and Write their formats and types.
  3. Describe basic ALU organization.
  4. Explain Multiplier control unit.
  5. Explain CPU control unit.
  6. Why there is a need of Memory allocation? What are its types?
  7. Discuss Cache’s and associative cache.
  8. Differentiate between Peer-to-Peer Network and Client server.
  9. Write a short note on Network layers.

 

QUESTION BANK OF MICROPROCESSOR & Programming

 

THIRD YEAR DIPLOMA SEMESTER – I

 

                BRANCH –  E & TC /COMP

 

 

Marks: 100                                                                                                      Duration: 3hrs

 

Questions For 2 marks:

 

 Define the following

 

1)      Instruction cycle,

2)      Machine cycle

3)      T state

4)      Program  counter

5)      Stack pointer

6)      Hardware

7)      CPU

8)      Program Memory

9)      Data memory

10)  Stack Memory

11)  Main memory

12)  System software

13)  User software

14)  Bit

15)  Nibble

16)  Byte

17)  Power consumption

18)  I/O unit

19)  System bus

20)  wordlength

 

 

Questions For 4 marks

 

Explain the following instructions( Related To 8085)

 

 

1)      MVI A,30H

2)      JNZ 2050

3)      ADD B

4)      IN 40H

5)      PUSH B

6)      RET

7)      ANI data

8)      CALL 2050

9)      JC C000

10)  SUI 20

11)  POP D

12)  CMA

 

    

    Explain the functions of the following pins of 8085 microprocessor

1.      RESET OUT

2.      SID

3.      SOD

4.      READY 

5.      HOLD

6.      CLOCK OUT

 

7.           __

           IO/M 

 

 

 

 

 

 

1.      Why data bus & address bus of 8085 microprocessor are multiplexed?

2.      What is use of ALE signal?

3.      Explain importance of accumulator in 8085

4.      Explain use of RD & WR signals.

5.      Explain general-purpose register used by 8085.

6.      What is stack memory? Explain the role of stack pointer.

7.      Explain the use of address bus.

8.      What is necessity to have two status S1 & S0in 8085

9.      What is an interrupt? Give the classification of interrupt

10.  What is use of SID & SOD pins in 8085?

11.  What is mean by Maskable interrupt & Nonmaskable interrupt?

12.  List five Hardware interrupts & eight software interrupts in 8085

13.  Differentiate between Software interrupt & Hardware Interrupt

14.  List applications of Microprocessor

15.  Write note on buses.

 

 

 

 

Questions For 6 marks:

 

With the help of one example explain the following instruction of 8085

1)      LHLD   addr

2)      ADD  M

3)      STA  addr

4)      LDA  addr

5)      STAX  addr

6)      SBB  r

7)      IN  addr

8)      OUT  addr

9)      SHLD

10)  RLC

11)  RAL

12)  ADC r

13)  ADI data

14)  ORA R

15)  XRA R

 

 

 

Write a short note on

1.      Machine Cycle

2.      STACK.

3.      BSR mode in 8255

4.      Write the features of 8085.

5.      What is the function performed by programme counter & stack pointer?

6.      What is subroutine? How is it useful?

7.      Explain the use of stack in CALL & RETURN instructions.

8.      Differentiate I/O/ mapped I/O & Memory mapped I/O

9.      Give the fix format of RIM & SIM instructions of 8085 microprocessor

10.  Explain with neat diagram how DAC system works.

11.  Explain with one example one byte instruction

12.  Explain with one example two byte instruction

13.  Explain with one example three byte instruction

 

 

 

Questions For 8 marks:

 

1.      State & explain architecture of microprocessor with suitable block diagram.

2.      Explain fetching, decoding & execution operations of microprocessor.

3.      Explain different control signals used by 8085.                              

4.      Explain addressing modes of 8085.

5.      Explain PUSH & POP instructions with example.

6.      Explain the timing diagram for OPCODE fetch .

7.      Design 8K byte of EPROM  USING 2k Chips & 4 Kbytes RAM  using 1K chips to 8085

8.      Describe the various modes of operation of 8255.

9.      Draw & explain block diagram of 8255 PI.

10.  Write a program to find out the highest number.

11.  Write a program to calculate the sum of series of numbers.

12.  Write program for addition of two 8 bit nos.

13.  Write program for addition of two 16 bit nos.

14.  Write program for addition of two 8 bit BCD nos.

15.  Write program for subtraction of two 8 bit nos.

16.  Draw pin diagram of 8085

17.  List the status signals & give fuctions of each .

18.  List the control signals & give fuctions of each .

19.  List the clock signals & give fuctions of each .

20.  List the reset signals & give fuctions of each .

21.  List the DMA signals & give fuctions of each .

22.  List the interrupt signals & give fuctions of each .

 

Questions For 12 marks:

1.      Give format of Flag register in 8085. Explain each flag.

2.      Explain five major groups of instructions in the 8085 instruction set.

3.      List & explain any five arithmetic instructions with one example each.

4.      Draw & explain interrupt structure of 8085 microprocessor

5.      Draw & explain architecture of 8085microprocessor with block diagram.

6.      Draw & explain the block diagram of 8155.

 

 

 

 

 

 

QUESTION BANK OF OPERATING SYSTEM WITH UNIX

 

THIRD YEAR DIPLOMA SEMESTER - I

BRANCH – Comp / IT

 

 

Marks : 100                                                                                         Duration : 3 hrs

 

 

Question for 2 marks

 

  1. What is an operating System?  
  2. Explain Batch processing system?        
  3. Explain Sequential processing system. Give example?
  4. Explain Real time system. Give example?
  5. What do you men by process?
  6. Explain various file operation?
  7. Explain various methods for file protection
  8. What are Naming rules for file?  
  9. Describe the following : Resident monitor
  10. Explain two-level page tables
  11.   Operating system plays an important role in the computer system. Justify.
  12.   Explain the Kernel in the UNIX operating system
  13.   List and explain any five features of UNIX operating system
  14.   Explain the Chmod command and various file permissions.
  15.   Explain with syntax the use of cat commands.
  16.   State the purpose of chgrp command.
  17.   Explain the concept of relative pathname.

 

 

Question for 4 marks

 

  1. What are the functions of operating system?                 
  2. What are the types of services available for operating system?
  3. Explain file manipulation in operating system?
  4. What are the different type of access methods available for files?
  5.  Give the difference between sequential methods and Direct access methods.
  6.  What are the free space management methods.
  7. Explain the following : I/O burst cycle.
  8. Explain multiprocessor scheduling 
  9.  Explain Bare Machine with neat diagram.
  10. What do you mean by Swapping.
  11.  What are the different swapping techniques available
  12.  Explain partitioning
  13.  Write short note on

(a)    Paging

(b)   Segmentation

  1.  Explain a typical page table entry with neat diagram
  2. Write short note on : Page Table
  3.  Compare between paging and segmentation
  4.  What is UNIX?
  5.  What is an Operating System?            
  6.  Explain in brief five features of UNIX operating system.
  7.   List any four application of UNIX in detail.
  8.   Explain the special features of UNIX in comparison with other operating system
  9.  State the various types of terminals used with the UNIX OS.
  10.   Explain the concept of an owner, a group and others w.r.t. a file?
  11.   What is PATH name? Explain the concept of relative pathname.
  12.   Explain the difference between text and binary files.
  13.   Write in short on UNIX file system
  14.   Write in detail on changing file permissions.
  15.    Explain in short file security in UNIX.
  16.    Explain with syntax the use of mkdir, chdir and rmdir commands
  17.    Explain the syntax of pwd and date commands.
  18.   Explain general terminal interface under UNIX.

 

Question for 6 marks

 

  1. Write a short note on : System Call. 
  2. Explain the following.
    1. Device Management
    2. Information Management
  3. Give difference between contiguous allocation and dynamic storage allocation.
  4. Explain the following : (i) Linked allocation   (ii) Indexed allocation 
  5. What are the file types available in operating system ? Give Example 
  6. Give the examples of following scheduling algorithm:
  7. Write short note on : Pure segmentation
  8.   Explain various features of UNIX
  9.   Compare UNIX with DOS
  10.  What are the functions of a Kernel? 
  11.  Explain Unix user interface?
  12.   Write short notes on : (a) UNIX kernel   (b) UNIX Shell
  13.   Explain (i) Multitasking   (ii) Multi user capabilities of UNIX 
  14.   What are the differences between the effects of various permission on files and directories?

 

  1.   Explain what are the file permissions and how these can be assigned to files.

 

 

 

 

Question for 8 marks

 

  1.  Write short note on : Multiprogramming Operating System. 
  2. What are the steps for system call? Explain with neat diagram?
  3. What do you mean by multiprogramming, multi tasking and multi-threading?  
  4. What are the different type of scheduling algorithms.

(a)    Priority

(b)   Shortest job first

(c)    Round Robin

 

  1.   Draw the structure of UNIX operating system. Explain each part in the structure.
  2.  List any five function of UNIX and explain.  
  3.   Explain the UNIX structure and its parts, kernel, shell, applications and utilities.
  4.   In UNIX differentiate with examples between ordinary files, directory files and device file.
  5.   Write short notes on : (a) File system in UNIX  (b) Ownership and permissions. 

 

 

 

 QUESTION BANK OF PERIPHERAL DEVICES & INTERFACING TECHNIQUES

 

                   THIRD YEAR DIPLOMA SEMESTER – I

 

                                         BRANCH – Comp

 

Questions for 2 marks

 

I) Give full forms of following

 

1)            CRT                                           

2)            MDA

3)            CGA

4)            DAC

5)            EGA

6)            LCD

7)            FDD

8)            HDD

9)            CD

10)        MODEM

11)        ADC

12)        DMA

13)        SID

14)        PPI

15)        PIC

16)        UART

17)        USART

 

            II) Match The Following

 

                        A                                                         B

 

1.      8255                                                Programmable  interrupt controller

2.      8250                                                8 bit processor                                    

3.      8251                                                16 bit processor                                              

4.      8237                                                Programmable peripheral interface

5.      8086                                                Programmable  interval timer

6.      8085                                                DMA controller

7.      8253                                                UART

8.      8259                                                USART

9.      Pits & lands                                      Data storage on magnetic media

10.  flux change                                       Data storage on CD

 

III) Fill in the blanks

 

1.      Printer has _______ pin data cable.

2.      ____________ IC is used as CRT controller in MDA.

3.      Read/write head of ________ does not touch the disk media.

4.      Read/write head of ________ touches the disk media.

5.      Track ______ is present on outer periphery of floppy disk.

6.      _________motor moves the read/write head from track to track.

7.      ________motor rotates the magnetic media at constant speed.

 

IV) Give the function of each following register of 8237 DMA controller  (each 2 marks)

1)      Current Address Register

2)      Current Word Register

3)      Base Address Register

4)      Base word count register

5)      Command register

6)      Request register

7)      Mask Register

8)      Status register

9)      Mode register

10)  Temporary Register

 

 

VI) Explain the function of following blocks in PIC 8259  (each 2 marks)

                              a)      ISR

                              b)      IMR

                              c)      IRR

                              d)      Priority Resolver

 

 

Questions for 4 marks

 

1)      List different characteristics of printer.

2)      List the types of printers & Give examples of each.

3)      Give five sections of keyboard keys.

4)      List components present in mouse.

5)      Give uses of mouse.

6)      Explain with diagram simplex mode of data transfer.

7)      Explain with diagram half duplex mode of data transfer.

8)      Explain with diagram full duplex mode of data transfer.

9)      What is parallel data transfer.

10)  What is serial data transfer.

11)  What is serial printer & What is parallel printer

12)  What is serial keyboard. & What is parallel keyboard.

13)  List types of keyswitches.

14)   Give two methods of interfacing CRT monitor to computer. & What is composite video signal.

15)  Give control signals of 8251 used for modem control.

 

 

Questions for 6 marks

 

1)      Draw a neat diagram of keybord connector & state its signals.

2)      List different signals of printer data cable.

3)      Write short note on Scanner.

4)      Explain with neat diagram working principle of mouse.

5)      Explain how optomechanical mouse works.

6)      Explain with neat diagram how data is stored on floppy disk.

7)      Write short note on flags in 8085.

8)      List different buses & give function of each.

9)      Write short note on Bit set reset of 8255.

10)  List different registers present in 8237 DMA controller.

11)  Name  six different modes in 8253.

12)  Explain with neat waveforms mode 3 of 8253.

13)  List four functions of PIC 8259

14)  What is mean by encoding a key. What is make-code. What is brake-code.

 

Questions for 8 marks

 

1)      Explain with neat diagram working of capacitive key switch.

2)      Explain with neat diagram working of membrane switch.

3)      Explain with neat diagram working of optoelectronic switch.

4)      Explain characteristics of printer.

5)      Explain with neat diagram working of floppy disk controller.

6)      Explain with neat diagram construction of Hard disk.

7)      Give control word format of 8155.

8)      Give control word format of 8255.

9)      Name three modes of 8255 & explain function of each in short.

10)  Draw transmitter section of 8251 & explain its working.

11)  Draw receiver section of 8251 & explain its working.

12)  Explain DMA operation with block diagram

13)  Give control signals of 8251 used for modem conrol. Explain each in brief.

 

Questions for 10 marks

 

1)      Explain with neat diagram working of dot matrix printer.

2)      Explain with neat diagram working of daisy wheel printer.

3)      Explain with neat diagram working of inkjet printer.

4)      Explain with neat diagram working of lazer printer.

5)      Explain with neat diagram working of printer controller mechanism.

6)      Explain with neat block diagram working of CRT monitor.

7)      Explain with neat diagram working of CRT.

8)      Explain with neat block diagram working of CRT monitor.

9)      Explain with neat block diagram working of display card.

10)  Draw a neat block diagram of 8255.

 

 

Questions for 16 marks

 

  1. Explain with neat block diagram  IC 8255.
  2. Explain with neat block diagram IC 8259.
  3. Explain with neat block diagram  IC 8253.
  4. Explain with neat block diagram  IC 8251.
  5. Explain with neat block diagram  IC 8155.
  6. Draw a neat interfacing diagram of 8255 with 8 push button switches connected to A port & Seven Segment LED to B port.

 

 

 

QUESTION BANK OF

COMPUTER COMMERCIAL APPLICATION & SYSTEM ANALYSIS

 

                 THIRD YEAR DIPLOMA SEMESTER – I

 

     BRANCH – Comp / IT (C5)

                                

Marks : 100                                                                                                                Duration:3hrs

Questions for 2 marks

Define the following terms.

1)      Subsystem

2)      Open system

3)      System

4)      Closed System

5)      Stable system

6)      Feedback of a system

7)      Control of a system

8)      Boundaries and interface

9)      Information

10)  Data Flow Diagram

11)  Flowchart

12)  Program

13)  Cohesion

14)  Coupling

15)  DBMS

16)  Data model