Inter (Part-I)
Lahore Board 2016
Computer Science Part-I
(Objective Type)
Time Allowed: 20 Minutes
Max. Marks:  15

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 in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

Q1.

• Which one is an example of use of computer in education:

a. CAM               
b. CAD                
c. CAL                          
d. CAT

• Which register holds the address of the next instruction to be fetched for execution:

a. PC 
b. IR                    
c. MAR                         
d. MBR

• The virus which deletes MS Office files and disk partition information is called:

a. Boot Sector     
b. Chernobal       
c. Logic Bomb               
d. Trojan Horse

• Digital signals are commonly called as:

a. Broadband      
b. Baseband                  
c. Narrowband              
d. Frequencyband

• Which one is hard copy output device:

a. CRT monitor   
b. Plotter              
c. LCD monitor             
d. Multimedia Projector

• Identify LAN’s protocol:

a. TCP/IP             
b. UDP                
c. Ethernet                     
d. HTTP

• The object of windows operating system used to perform system management tasks is:

a. Desktop           
b. My Computer 
c. Control Panel            
d. Windows Explorer

• Calling a cell in MS Excel by just their addresses (like A1, B3) is called:

a. Named Ranges
b. Labeling           
c. Relative Referencing  
d. Absolute Referencing

• Information technology is a combination of:

a. Computing and mechanical technology
b. Computing and electrical technology
c. Computing and mechatronics technology
d. Computing and communication technology

• Which one is the fastest memory/storage:

a. Disk                 
b. RAM               
c. ROM                         
d. Cache

• The distance between each line of paragraph and margins is called:

a. Indents             
b. Paragraph spacing    
c. Line spacing
d. Alignment

• Who is responsible for security of online data:

a. User                                                       
b. LAN administrator
c. Internet Service Provider                       
d. Organization obtaining the data

• Which one contains permanent IP address:

a. Client               
b. Server                        
c. User                 
d. NIC

• A type of communication that sends data using flow control to synchronize data between sender and receiver:

a. Asynchronous transmission                           
b. Synchronous transmission
c. Isochronous transmission                      
d. Monochronous transmission

• Which device connects each computer to the network:

a. Network Interface Card 
b. Router
c. Gateway                                                 
d. Bridge

Inter (Part-I)
Lahore Board 2016
Computer Science Part-I
(Subjective Type)
Time Allowed: 2.10 Hours 
Max. Marks: 60

Section I

Q2.    Write short answers to any SIX (6) questions: 12

• What is input device?
• What is a printer?
• Differentiate between softcopy and hardcopy.
• Define ring topology.
• Define workgroup computing.
• Define the term token in topology.
• How does microwave system work?
• What is encoder?
• Define mobile communication.

Q3.    Write short answers to any SIX (6) questions: 12

• What is advantage of using ATM in banks?
• Name four applications of document management system.
• What is control unit?
• Why RAM is used in computer?
• What is stack pointer register?
• Name four operating systems
• Define store program computer.
• What is boot sector?
• Who is a hacker?

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

• Define user interface.
• What is multitasking?
• List any two uses of word processor.
• Write names of two typing modes used in MS-Word.
• What do you know about indentation?
• Write any two benefits of spreadsheets.
• Write a function that does total of the cells from A1 to A5.
• List any two negative impacts of internet on society.
• Define IP Addressing.

Section II
Note: Attempt any THREE questions.

Q5. What are source data-entry devices? Explain three mark and character recognition devices.  2,2,2,2
Q6. Define star topology. Explain its working with diagrams. Also discuss its two disadvantages.  2,3,1,2
Q7. Why we need to encode our data in computer systems? Also define and explain EBCDIC code and Unicode in detail. 2,3,3
Q8. Define bus. Explain three different types of system buses. 2,2,2,2
Q9. Discuss two security threats to data security. Write any four solutions to these threats 2,2,1,1,1,1