PAPER CODE - 6831
(11h CLASS - 12014)
COMPUTER SCIENCE
TIME: 20 MINUTES
NEW COURSE
OBJECTIVE
MARKS: 17
NOTE: You have four choices for each objective type question as A , B , C and D The choice which you think is correct fill that cir( le in front of that question number. Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question.

Q.N0.1

• The electronic circuit that executes computer instructions is a(n)
  

(A) Monitor    
(B) Hard disk 
(C) CPU        
(D) Keyboard

• Which type of diagram shows how information flows through a system
  

(A) Logic flowchart
(B) Gantt chart
(C) Pi chart
(D) Decision table

• What layer of 0S1 model perform data compression ?
  

(A) Network  
(B)  Data link
(C) Presentation
(D) Physical

• The set of rules to exchange data in a communications network is called
  

(A) Gateway
(B) Procedure
(C) Protocol
(D) Token

• Which of the following is not a communication media ?
  

(A) Twisted pair         
(B) UTP         
( C) Microwave          
(D) Modern

• Physical path that connects the sencer and receiver is known as
  

(A) Communication channel
(B) Decoder   
(C) Encoder   
(D) Self-testing

• CBT software is used in
  

(A) Education
(B) Forecasting         
(C) Manufacturing     
(D) None of these

• A word processor can be used to
  

(A) Write text
(B) Edit text   
(C) Print text  
(D) All of these

• An important characteristic of RAM is that it is
  

(A) Read only
(B) Write only
(C) Non volatile         
(D) Volatile

• The order of stack is
  

(A) FIFO        
(B) LIFO        
(C) GIO          
(D) Lf10

• Which component of CPU is responsible for interacting with primary memory ?
  

(A) ALU        
(B) Control Unit        
(C) BUS         
(D) None of these

• An identifiable location in memory where data are kept is called a(n)
  

(A) Space       
(B) Address   
(C) Ocation    
(D) Cell

• Which of the following is NOT a type of RAM ?
  

(A) Quick RAM         
(B) Dynamic RAM    
(C) Stable RAM
(D) Both A and C

• Which one is NOT a virus ?
  

(A) Trojan Horse        
(B) Logic Bon.b         
(C) MC Afee  
(D) Reflof

• How a virus reaches from one corn' user to another
  

(A) Data is exchanged between con puters
(B) Exchange of display screen
(C) Exchange of keyboard
(D) Exchange of printer

• An operating system is a
  

(A) System utility      
(B) Application software       
(C) System software
(D) Software package

• Copying data from Internet to computer is called
  

(A) Uploading
(B) Downloading       
(C) Transferring         
(D):None of these

(11th  CLASS 12014)
COMPUTER SCIENCE
TIME : 3.10 HOURS
NEW COUASE
SUBJECTIVE
MARKS : 83
SECTION-I

• Define software
• Define information
• Define input device
• Describe Dejure standard
• Define workgroup computing
• Define term client
• Define hit and byte
• Explain internal modern
• Define broadband
• What is logic bomb ?
  
• What is privacy issue
  
• State the purpose of password

3. Write short answers to any Eight (8) of the following questions (16)

• Define DMA
  
• Why RAM is called volatile memory ?
• Define ALU
• What is one address instruction format 7
• Define object code
• What is expansion bus
• Define MAR
• What is van Neumam computer model
• What is clipboard
• List any four features of simple word processor
  
• Define work book
  
• List any four functions of MS Excel
  

4. Write short answers to any Six (6) of the following questions

• What is online education ?
  
• Define the term video conferencing.
  
• What is the use of message handling system.
  
• Explain CAD.
  
• Describe CBT.
  
• What is control?
  
• What is multi-processing?
  
• What is DNS addressing ?
  
• Define email address

SECTION-II

Note: Attempt any Three questions from this section (8x3=24)

5.Discuss different types of display screens in detail
6.Define Internet. Explain how Internet can be useful
6.What is Guided media ? Briefly describe different guided media
8.Define ROM . Discuss its different types
9.How can we protect the computer system from a virus'?

SECTION-III
(PRACTICAL PART)

10. Attempt any three parts from A.,B,C,D and E   (5x3=15)

• How do we change the desktop background '?
• Write a procedure to insert word Art in MS-Word document
• Write the procedure for printing a document in MS-Word
• Write procedure for rotating and wrapping text in cell
• Write down procedure to add two numbers in MS Excel worksheet