Rawalpindi Board 2012
Inter Part I (Computer Science)
Note: Pour possible answers A, B; C and D to each question are given. The choice which you think is correct that circle in front that question with Marker or Pen ink. 'Lining or filling two or more circles 'will result in zero mat k in that question. Write the letter A, B. C or D in the column.(write correct "option) against each question also. If there k a contradiction in the bubble and hand written answer, bubble option will be considered correct.

• The extension of MS-ward file is

(A) Doc
.
.
.

• Which of the followings is a correct cell address

(A) A
5
B
5

• This is not one of the leading search engines

(A)Excite
.
.
.

• An inkjet printer is an example of

(A) Laser printer
(B) impact printer
(C) COM printer
(D) Non-Impact printer

• Smallest unit of memory is

(A) Character
.
.
.

• The ITU was formerly known as

(A) CCITT
(B) ISO
(C) IBM
(D) SNA

• The top most layer of BSI is

(A) Application
.
.
.

• Full duplex communication is made possible by-devices called

(A) Modem
.
.
.

• Which is not a common communication code

(A) ASCII
.
.
.

• Many banks provide the facility of

(A) ATM
.
.
.

• Which is not an example of E-commerce?

(A) Online chatting
.
.
.

• The step that obtains the next instruction from memory is called

(A) Fetch
.
.
.

• The brain of the computer that executes the instruction from memory is called

(A) CPU
.
.
.

• Which is harmful for computers?

(A) Virus
.
.
.

• A small image that represent a program instruction file is called

(A)Icon
.
.
.

Q2:
Answer 6/6 parts from questions

• Write few applications of information technology.
• Differentiate between hypermedia and multimedia.
• Define customized software.
• What is collaborative computing?
• Define the term network topology
• Differentiate between server computer and terminal.
• What is asynchronous data transmission?
• Define demodulation.
• How data is represented in computer?

Q3:
Answer 6/6 parts from questions

• What is meant by CAM?
• Define computer simulation.
• Define memory address.
• Describe the use of control bus.
• What is meant by DMA?
• What is fetch instruction?
• Differentiate between source code and object code.
• What is meant by biometrics?
• List types of viruses.

Q4:
Answer 6/6 parts from questions

• What do you mean by plug and play?
• Write down the names of different operating system on the basis of user interaction.
• Differentiate between delete and backspace keys.
• Define header and footer in MS-word.
• Define spreadsheet.
• What is merged and centre option in Excel?
• Define WWW.
• Distinguish between HTTP and FTP?
• State the use of web browser.

Answer any three questions.

Q.5. What is display screen? Discuss different types of display screens.
Q.6. What is computer network? Explain devices used to connect networks of computers.
Q.7. What do you mean by communication channel? Describe any three types briefly.
Q.8. What is RAM? Explain different types of RAM.
Q.9. Define virus. Also write the means through which a virus spreads.