Inter (Part-I)
Lahore Board 2013
Computer Science
Part I (Objective Type)
Time Allowed: 20 Minutes
Max. Marks: 17
Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink. Cutting or filling two or more circles will result in zero mark in that question.

Q.1

• The piece of hardware that permanently holds data and programs is called:

a. Primary Storage                 
b. CPU                 
c. Secondary Storage    
d. Output

• Laser printer is an example of:

a. Non-impact               
b. Inkjet               
c. Impact                        
d. Dot matrix

• A network that transmits data over citywide distances faster than LAN is:

a. WAN                         
b. LAN                
c. MAN                          
d. NAN

• The physical layout of LAN is known as:

a. Topology                            
b. Session            
c. Link                           
d. Connector

• All of the following are elements of data communication system except:

a. Sender                        
b. Receiver           
c. Medium                      
d. Voltage

• How many characters ASCII 7-bit code can represent?

a. 128                                      
b. 256                            
c. 500
d. 364

• The following component of CPU is responsible for comparing the contents of two pieces of data:

a. ALU                           
b. Control Unit    
c. Memory                     
d. Register

• RAM holds the data / instructions:

a. Temporary
b. Permanent       
c. HDD                         
d. Cell

Memory is made up of:

a. Set of wires               
b. Set of circuits  
c. Cells                          
d. BIOS

• There are               types of accumulative register:

a. Two                           
b. Three               
c. Four
d. Six

• The output of compiler is called:

a. Program                     
b. Source Code    
c. Linked Code              
d. Object Code

• Trojan Horse is a:

a. Antivirus                   
b. Virus               
c. Software                   
d. Hardware

• Which of the following is the most devastating loss to a company:

a. Loss of Hardware                                                               
b. Loss of Data
c. Loss of RAM                                                                       
d. Loss of printouts

• One of the following is not include in Document Management System:

a. Word processing                                                                
b. Desktop publishing
c. Reprographic                                                                      
d. E-shopping

• Most application of robotics are in which are?

a. Cooking                    
b. Manufacturing 
c. Teaching
d. Farming

• Which of the following contains the administrative tools?

a. Control Panel            
b. Start Button    
c. Internet Explorer       
d. Recycle Bin

• Which of the following is a top level domain?

a. http                                     
b. .com                
c. HTML                       
d. URL

Inter (Part-I)
Lahore Board 2013
Computer Science
Part I (Subjective Type)
Time Allowed: 3.10 Hours
Max. Marks: 83

Section-I

Q2. Write short answers to any EIGHT (8) questions: (16)

• Define input.
• What do you mean by QWERTY?
• How does a mouse work?
• Define the term network topology.
• Define dedicated server.
• Define the term client.
• Define data communication.
• What is signal?
• Define transmission mode.
• Define password.
• Explain data security
• What is Redlof?

Q3. Write short answers to any EIGHT (8) questions: (16)

• Define the function of ALU.
• Define reprographics.
• What is robot?
• How computer can be used in airline system?
• Why RAM is called volatile memory?
• Explain I/O devices.
• Write down names of different system buses.
• What is motherboard?
• Define word processor.
• State the use of clipboard in MS-Word.
• What is cell in MS-Excel?
• List any four functions in MS-Excel.

Q4. Write short answers to any SIX (6) questions: (12)

• What is online education?
• What is computer architecture?
• Define memory address.
• What is ROM?
• List some features of computer.
• Name some events of keyboard.
• Describe Print Queue.
• Differentiate between URL and Website.
• List names of some popular web browsers.

Section-II

Attempt any THREE questions.

Q5. What is display screen? Explain any two types of display screens. (8)
Q6. What is OSI Model? Discuss its any two layers. (8)
Q7. What is unguided media? Explain different unguided media. (8)
Q8. Define CPU and explain its parts.  (8)
Q9. What is computer virus?         Discuss some causes of viruses. (8)

Section III
(Practical Part)

Attempt any THREE questions.

A. Write the steps to Rename Programs on Start Menu. (5)
B. Write down the steps Cut, Copy and Paste. (5)
C. Draw a border around the paragraph. (5)
D. Calculate the square, cube and square root. (5)
E. Write the steps to draw a chart / Graph in Worksheet. (5)