1st year

[alikhan7595]

ALLAH se omeed rakta ho k ap sab kher kheriyat se honge,,,,,bahi jan mera kal paper hai me fcs me parta ho,,,,,muje zara fcs computer since ki book ya notes chahiye....plz mere liye zara apna QEMATI TIME nikal k mera madad karo.....ADVANCE THANKS.....

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Guess paper of 1st Year COMPUTER SCIENCE


SECTION "A" - MCQs - MULTIPLE CHOICE QUESTION

(15 MARKS)

Q.1. Choose the correct answer for each from the given options
i. A group of 4 bits is called

Byte

Word

Nibble

All of the above

ii. The speed of computer is measured by

GHz

Megabyte

Nibble

All of them

iii. Which of the following is a secondary storage device?

Processor

Memory Chip

Floppy Disk

Printer

iv. Non-Volatile memory is

ROM

RAM

Cache Memory

All of them

v. Which mark-up language is used to produce Web Pages?

HTML

WML

XML

SGML

vi. The internal process of starting up a computer is known as

Booting

Self Start

Warm Up

Start Up

vii. CD stands for

Computer Disk

Connector Drive

Compact Disk

None of them

viii. Which of the following is not an input device?

Printer

Joystick

Keyboard

Scanner

ix. A stack is served on the principal of

LIFO

FIFO

LILO

None of them

x. 1 MB is equivalent to

1024 bytes

1024 KB

1024 Bits

None of them

xi. Which part of CPU performs all arithmetic and logic calculations on data it receives

Control Unit

Main Memory Unit

Arithmetic Logic Unit (ALU)

Read only Memory

xii. A mode of communication that allows information to travel in two directions but not simultaneously called

Full Duplex

Half Duplex

Half Simplex

Simplex

xiii. URL stands for

Urban Resource Locator

Unit Resource Locator

Universal Resource Locator

None of them

xiv. Microwave transmission, coaxil cable, and fibre optics are the examples of

Modems

Ring Networks links

Communications media

Routers

xv. The register that collect the result of computations is called

Main Storage

Storage Register

Stack

Accumulator

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SECTION "B" - SHORT ANSWER QUESTIONS

(36 MARKS)

Q.2. Answer any SIX questions from this section. All questions carry equal marks. No answer should exceed 6-7 lines.
1. What is an Operating System? Why is it necessary for a computer?
OR
What is a E-mail? How it is useful for us?
OR
Write the names of commonly used input and output devices. Discuss at least three types of input devices.

2. What is a computer virus? How can we protect our computer from it?
OR
Explain three types of instructions code formats used in computer.
OR
Explain Sequential Access, Cyclical Access and Random Access devices.

3. Differentiate between Impact and Non-Impact Printers.
OR
Differentiate between Hard Copy and Soft Copy.
OR
List and describe briefly three common LAN topologies.

4. Differentiate between Interpreter and Compiler
OR
Differentiate between High Level Language and Low Level Language.
OR
What are the difference between volatile storage and non-volatile storage.

5. Differentiate between Serial Ports and Parallel Ports.
OR
Differentiate between DOS and Windows.
OR
Differentiate between Synchrouous Transmission and Asynchroneous Transmission.
OR
What is a Web Browser? Name the most popular and extensively used web browsers.

6. Differentiate between Desktop Operating System and Network Operating System.
OR
What is the function of a MODEM? Write the different types of Modem available.

7. Differentiate between System Software and Application Software.
OR
Differentiate between Analog and Digital Signals.
OR
Distinguish between LAN and WAN.

8. How is a computer useful for us? Define briefly its usage in the field of education.
OR
What is the importance of Data Backup? List the names of backup devices.

9. Differentiate between Binary Number System and Decimal Number System.
OR
Explain what electronic technology characteristics each of four generation of computers.
OR
Differentiate between Full Duplex and Half Duplex.
OR
What do you understand by Modulation and Demodulation.


SECTION "C" - DETAILED ANSWER QUESTION

(24 MARKS)

Q.3 (A). What do you understand by the term "Internet"? Write the uses and abuses of Internet.
OR
What is an OSI model? How many layers does it consist of? Name these layers and explain their functionality.

Q.3 (B). Define Information Technology. How is it used in our daily life?
OR
Define a Bus. Describe the functions of the address bus, control bus and data bus.

Q.4 (A). What are the functions of Router and Gateway in data communication.
OR
Explain the various Transmission modes and methods.

Q.4 (B). What is Copy Right Law? State its advantages.
OR
What are the main functions of spread sheet program? What is the difference between a Spread sheet and a work sheet.
OR
What are network protocals? Describe their main categories.

Q.5. What is meant by Communication media? Explain the types of the Communication media.
OR
Define Register. What is the function of a register? Name the important register of CPU.
OR
Explain the following operations can be performed by using windows?

Selecting a Document

Renaming a Document

Deleting a File and Folder

Uses of Recycle Bin

Customizing the Windows

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