RAWALPINDI BOARD 2016
PAPER COMPUTER SCIENCE PART-I
Time: 20 Minutes
(Objective Part)
Marks: 15
Note: You have four choice for each objective type question as A, B, C and D. The choice which you think is correct; fill that circle 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.

• Computer based weather forecasting depends on accurate collection of data from:
  

(a) Radar        
(b) Weather stations
(c) Antenna    
(d) Television

• Program's Syntax errors are detected by:
  

(a) Compiler
(b) Linker
(c) Loader
(d) Debugger

• The term that refers to all input, output and secondary storage devices is called:
  

(a) Central unit           
(b) Network point
(c) Peripheral  
(d) Internal memory

• Which one is not a virus:
  

(a) Trojan Horse         
(b) Logic bomb
(c) McAfee     
(d) Redlof

• A right of person to keep his personal information away from the unauthorized access is called?
  

(a) Piracy        
(b) Privacy
(c) Personal issue        
(d) Assets

• Pressing and releasing the left mouse button quickly is called:
  

(a) Clicking
(b) Dropping
(c) Pointing
(d) Dragging

• The insertion point in a document is called:
  

(a) Mouse
(b) End marks
(c) Cursor
(d) Eraser

• The function in MS-Excel is used to get the smallest value is called:
  

(a) MAX        
(b) MIN          
(c) Minimum
(d) Smallest

• Internet differentiates one computer from another by:
  

(a) Architecture          
(b) Manufacture
(c) IP address 
(d) Brand Name

• Which of the following is not an input device?
  

(a) Keyboard  
(b) Speaker
(c) Mouse       
(d) Microphone

• Testing all program together is called:
  

(a) Volume testing     
(b) Program testing
(c) System testing                  
(d) Composite testing

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

(a) Gateway
(b) Procedure
(c) Protocol
(d) Token

• Many networks include a central computer that may be called:
  

(a) Server
(b) Bridge
(c) Gateway
(d) Client

• A television broadcast is an example of:
  

(a) Full duplex
(b) Half duplex
(c) Simplex     
(d) Mid duplex

• How many characters ASCII 7 bits code an represent:
  

(a) 16  
(b) 32  
(c) 64  
(d) 128

Time: 2:10 Hours
(Subjective Part)
Marks:
Section I

2. Attempt any SIX short questions.   (6 x 2 = 12)

• What is gas plasma display?
• Define smart card.
• What do you mean by implementation?
• Write two advantages of computer network.
• Give two uses of Email.
• Define internet.
• Write two names of unbounded media.
• Describe broad band.
• What is fiber optic?
  

3. Attempt any SIX short questions.  (6 x 2 = 12)

• How computer is useful in marketing?
• What is Robot? Write its one use in Industry.
• Write down the function of memory Address Register.
• Describe three address instruction formet.
• Describe DMA with respect to I/O unit.
• What do you mean by I/O read and I/O write command?
• List names of two biometrics methods.
• How pirated softwares spread viruses?
• What do you know about memory management function of operating system?
  

4. Attempt any SIX short questions.  (6 x 2 = 12)

• List out four objects of windows operating syst em.
• Why do a computer needs an operating system?
• State the use of clipboard in MS word.
• Define word processor.
• Distinguish between Undo and Redo command s.
• What is meant by cell reference?
• Differentiate between worksheet and workbook.
• Briefly describe web surfing.
  
• How would you describe internet?
  

SECTION-I I

Attempt any THREE questions  (8 x 3 = 24).

5.Define pointing device. Explain any three pointing devices in detail.
6.Explain any four components of LAN.
7.What is data transmission mode? Explain its three types with examples.
8.Define Van Neuman design of stored program computer with the help of diagram. Also write the function of each component briefly.
9.What is virus? Discuss any three causes of virus.