Board Exams

Board Exams

Computer Science: HSC 2019 Tips & Tricks

PUBLISH DATE 2nd March 2019

Vocational Computer Science (2018 -19)

Tips & Tricks 

- By Prof. Prachi Harshe, B.E. (Electronics n Telecommunications)

Hello Friends!

Up-till now you have finished with your group papers (PCM). Now its time to focus on vocational subjects. After your Maths paper, you are going to get sufficient time for the preparations of Vocational subjects.  You can definitely score well in these subjects & increase your aggregate marks with proper preparations. For Computer Science, you are going to solve two papers (Software & Hardware )  each for 50 marks. Question Paper pattern for vocational papers is the same as the last year.

  Paper – I (Software)

Computer Science Paper – I i.e.  Software is of 50 Marks. The paper comprises of 4 Topics, C++, Data Structure, Operating System & HTML.

C++  :

The main chapter of Paper – I is C++.  In it the focus is on various object-oriented concepts / Features of C++. Prepare all the object-oriented concepts listed below with a small example program.

1 ) Class & Objects  2)  Constructor & Destructor  3) Friend Function  4) Operator Overloading    5) Inheritance & Its Types   6) Polymorphism & Its Types  7)  File handling

You can write your own program with the main highlights of the concept.

Constructor  Example :

class   add

{   private :

         int a ,b;

      public :

            add ( )                     // constructor declaration & definition

         {   cout<<“\n enter 2 numbers”;



     void main ( )

{  add    X;                    // call to constructor function

}       Output :- enter 2 numbers : 5     6

                          addition = 11   

Data structure: Points to be covered are,

1) Data structure definition   

2 ) Six data structure operations                                                                   

3) Array: Algorithms with example / dry run  

a)  Bubble Sort    b) Linear Search  c)  Binary Search

4) Link list: Memory representation &   Advantages over array                                                             

5) Tree & Binary Tree : Terminologies used for tree with diagram , Memory representation  of Tree structure for the given mathematical expression

HTML :  Points to be covered are ,

1)Advantages & Disadvantages of HTML                                                                                                                  

2)Various Tags of HTML with their attributes &  example like                                                                 

Text Formatting  eg. ,   Lists  &,  Image , Hyperlink ,  Table             


3) Use of tags : 

a) Write HTML code for the given output

b) Determine output of the given HTML code

  Operating System: Points to be covered are,                                                                                                       

1) Definition of operating system 

2)  Functions of the operating system                                                                    

3) Three services of operating system IM, PM, MM                                                                                                                                                             

IM:- System calls, tracks & sector, types of file system                                                                                      

PM:- Context switching, Process states, Scheduling, Priority                                                                           

MM:- Real & Virtual                                                                                                                                              

4) Security: Threats to security, Worms, Virus, GUI                                                                                   

5) Features of OS like LINUX, Windows (given version)

Dear friends, ensure that you have read each and every point listed above. Try to practice algorithm writing not just reading. Practice C++ programs for each and every concept. Practice writing HTML code for various table structures. If possible go through the last five years board question papers to understand the questioning pattern.

Vocational Computer Science –  Paper – II (Hardware )

Computer Science Paper – II ie Hardware has the following topics,                                

1) Introduction to microprocessor & organization of 8085  

2) Instruction set & programming of 8085            

3) Introduction to Intel X86 family

4)  Introduction of microcontroller                          

5) Networking Technology                          

Introduction to microprocessor & organization of 8085: Points to be covered are,             

1) Define  microprocessor

2) Generations of  Microprocessor                                                                       

3)Diagrams: Block diagram of Microcomputer, Functional block diagram of 8085, Pin diagram of 8085, ALU(Practice drawing the diagrams)                                                                     

4) Functions of pins of 8085

5)Interfacing I/O devices with 8085

6)Interrupts with their priorities

7)Flag register of 8085

8) Definitions like Instruction cycle, fetch cycle

Instruction set & programming of 8085 :  Points to be covered are,

1) Addressing Modes

2)  Instruction set of 8085 : -  Data Transfer, Arithmetic, Logical, Branching , Stack, I/O For all groups of instructions, follow the format: Purpose of the instruction, Syntax, Addressing mode, Number of bytes required Flags affected,

For example,  

ADD  r                                                                                                                                                                    

Purpose of the instruction:-  Adds contents of Accumulator & register r & store the result in the accumulator.                                                                                                                                                                               

Syntax :-   ADD  B  (any register name)                                                                                                          

Addressing mode  :-  Register                                                                                                    

Number of bytes required  :-  1 byte                                                                                                       

Flags affected  :- All                                                                                                                                        

Example : -  [A] = 02 H  & [B] = 03 H                                                                                                                                 

ADD   B        will store 05  in the accumulator                                                   

Prepare programs based on the instruction set .

Introduction to Intel X86 family: Points to be covered are,

1)  Features of processors of X86 family:- 8086, 80286, 80386,80486, 80586                       

2) Programming model of 8086                                                                                                                                       

3) Flag register of 8086

Introduction to Microcontroller: Points to be covered are,                                                                 

1)  Definition & advantages of microcontroller

2) Features of microcontrollers of 8051 family.

3) Memory mapping of 8051 microcontroller

Networking Technology : Points to be covered are ,                                                                                   

1) Goals / Advantages of computer networks

2) Types of computer networks- LAN, MAN, WAN

3) Topology  - BUS, STAR, RING

4) Access Methods – Contention, Polling, Token ring