SARGODHA BOARD 2014
PAPER COMPUTER SCIENCE
PART-I
Time: 20 Minutes
(Objective Part)
Marks:17

Note: You have four choice for each objective 04 as A, B, C and D. The choice correct; fill that circle in front of that Use marker or pen to fill the Circle. Cutting or filling two or more circles will result in zero mark in that question.

• A device used for optical- character recognition is a:

(a) Wand reader         
(b) Cursor       
(c) Pen                        
(d) MICR reader

• Which of the following is an impact printer:

(a) Laser printer                      
(b) Dot - Matrix printer
(c) COM printer                     
(d) Inkjet printer

• Software to pursue to internet is:
  

(a) Gateway               
(b) EFT
(c) Browser                
(d) Teleconferencing

• The layer that is responsible for flow control and ensuring messages are delivered without error free is called:
  

(a) Application                       
(b) Session
(c) Physical                
(d) Transport

• Communication between a computer and key board involves.

(a) Simplex                 
(b) Half-Duplex
(c) Full – Duplex       
(d) Automatic

• How many characters ASCI17-bit code can represent:
  

(a) 128                       
(b) 256
(c) 500                        
(d) 364

• Modern computers can perform calculations or process:
  

(a) Per second           
(b) Per minute
(c) Nino second                      
(d) None

• Which of the following is related to business?

(a) Marketing            
(b) Stock exchange
(c) Banks                    
(d) All of the above

• Data and program not being used by computer are stored in:

(a) Secondary storage
(b) Cache        
(c) Primary storage     
(d) Printer

• Which component is used to connect different parts of computer together?

(a) Bus interconnection          
(b) Control unit
(c) Main memory        
(d) None

• The address of instruction under the processor execution k contained within:
  

(a) Program counter
(b) Current instruction register
(c) Memory address register
(d) Memory buffer register

• An important characteristics of RAM is:
  

(a) Read only             
(b) Write only
(c) Non volatile                      
(d) Volatile

• The output of a compiler is called:
  

(a) Program                
(b) Source code
(c) Linked code                        
(d) Object code

• Trojan Horse is a:
  

(a) Anti virus              
(b) Virus
(c) Software               
(d) Hardware

• Types of software that can be freely distributed without violating copyright laws are called:
  

(a) Share ware                        
(b) Public domain
(c) Copy protected                 
(d) Both a & b

• The maximum number of partitions,that can be created on a

(a) Two                
(b) Three         
(b) Four                
(d) None

• The length of an IP address is:
  

(a) 8 bit
(b) 16 bit
(c) 32 bit
(d) 64 bit

Time: 3:10 Hours
(Subjective Part)
Marks: 83

Section II

2. Attempt any EIGHT short questions. (8x2=16)

• What is touch pad?
• Define information technology.
  Define the term plotter.
• What is FTP?
• What is metropolitan Area Network?
• Define extranet.
• Define data communication.
• What is parallel data transmission?
• Define broad band.
• Define password.
• What is data security?
• Define the term legislation.

3. Attempt any EIGHT short questions. (8x2=16)

• Why ROM is called Read only memory?
• Define ALU?
• Define compiler?        
• What is control unit?
• What is bus interconnection?
• What is register?
• What is op-code?
• What is an operating system?
• What is page orientation?
• Define clipboard.
• Write down a formula to add five cells in a column in MS-Excel.
• What is a sheet?

4. Attempt any SIX short questions.    (6x12=12)

• Define the term video conferencing.
  
• How computer can be useful in weather forecasting.
  
• How banks can benefit from the use of computer?
  
• Define computer-aided design.
  
• Write some benefits of computer-aided learning.
  
• What do you mean by plug and play?
  
• Define desktop.
  
• Define the terms uploading and downloading.
  
• Define WWW.

SECTION-III

Attempt any THREE questions. (8x3=24)

5. Discuss different types of display screen.08
6. Discuss different Network models.  08
7. What is data communication? Explain the basic components of communication network.  08
8. Discuss different functions of operating system. 08
9. What is data security? Why it is important?  08

SECTION-IV

10. Attempt any THREE questions. (5x3=25)

(A) Write a procedure to change Date & Time. 05
(B)Write a procedure to use option page setup in MS-Word. 05
(C) Write a procedure to use option Alignment in MS-Word. 05
(D) Write a procedure to insert new worksheet in MS-Excel and rename it. 05
(E) How would you insert a predefined function in MS-Exce1. 05