NOTES: QUICK WAY TO LEARN COMPUTERS BOOK 6 (NEW EDITION) COMTECH PUBLICATIONS 2015 SHAHBAZ AHMAD,SAJJAD ALI

NOTES: QUICK WAY TO LEARN COMPUTERS BOOK 6 (NEW EDITION) COMTECH PUBLICATIONS 2015 SHAHBAZ AHMAD,SAJJAD ALI

CHAPTER 1 RECAP P:5-11

ACTIVITY

  1. FILL THE BLANK SPACES WITH CORRECT WORDS.
i. All input and output devices connected to a computer are collectively known as computer——————–

ii. Computer software can be classified as ————————and—————————

iii. —————– software is the main program that runs a computer.

iv. The most important System Software for computer is the—————–

v. GUI stands for————–

vi. An American software company —————–released Dos in ——————

vii. We can divide computer devices into ——————– different types.

viii. The pans of computer, which we use to store the information and programs

into a computer, are called ———————–devices.

ix. When we enter some data into a computer for processing it is called————- to the computer.

X. A   —————-   is a group of computers connected together via communications media and devices.

Answers:

(i-hardware )(ii-system software, application of software)(iii-system)(iv-operating system)(v-graph user)(vi-Microsoft, 1981) (vii-four)(viii-strong)(ix-input)(x-network)

  1. TICK THE RIGHT STATEMENT.
         i.            Without a System Software computer cannot function.

ii.            Windows is a single tasking operating system.

iii.            DOS stands for Disk Operating System.

iv.            The parts of a computer, which we use to enter the data into the computer, are called output devices.

v.            The parts of a computer, which we use to get information from the computer, are called input devices.

vi.            The parts of a computer, which we use to convert input into output and control the internal function of the computer, are called processing devices.

vii.            The size of storage devices is measured by Bytes, Kilobytes 2 and Megabytes etc.

viii.            DOS is a multitasking operating system.

Answers: (i-T)(ii-F)(iii-T)(iv-F)(v-F)(vi-T)(vii-T)(viii-F)

 

 

  1. GIVE THE ANSWER OF THE FOLLOWING QUESTIONS.
i-Define Computer Hardware and give some examples.
Answer:
ii-What is Computer Software?
Answer:
iii-What is the function of System Software in a computer?
Answer:
iv-Explain the Operating System.
Answer:
v-Write three main features of Windows Operating System.
Answer:
vi-Write three main features of DOS.
Answer:
vii-Write a note on Application Software and give four examples.
Answer:
viii-What are Computer Devices?
Answer:
ix-Explain the Processing and Storage Devices.
Answer:
x-What is Input and Output? Give one example.
Answer:

 

CHAPTER 2 BINARY CODES P:13-21

ACTIVITY

  1. FILL THE BLANK SPACES WITH CORRECT WORDS.
Every number system has a base, which is called a——————

Binary states are ————– and ————–

The smallest unit of memory is—————–

The radix of Decimal Number System is—————-

The radix of Binary Number System is——————–

The radix of Hexadecimal Number System is——————

Each 0 or l in the Binary Number System is called a—————–

The combination of eight bits is called a———————

ON is and OFF is——————

Collection of 1024 Bytes is equal to one———————-

Collection of l024 Megabytes is equal to one———————

Collection of 1024 Terabytes is equal to one———————–

Collection of 1024 Exabytes is equal to one————————

To change the numbers from one base to another is called the———————

Answers: (i- )(ii-)(iii-)(iv-)(v-)(vi-)

 

  1. GIVE THE ANSWER OF THE FOLLOWING QUESTIONS.
What is a Binary Number System?
 
Why docs a computer use Binary Number System instead

Of the popular Decimal Number System?

 
What is a Byte?
 
What is Memory Size Table?
 
Convert the following numbers from base ” 10″ to base “2 ,

i) 38 ii) 74 iii) 116 iv) 188 v) 133

 
Convert the following numbers from base “2” to base ” 10″,

1) 1001 ii) 10001 iii) 11100 iv) 100100

 
Answers: (i-)(ii-)(iii-)(iv-)(v-)(vi-)

 

(3)TICK (√ )THE RIGHT STATEMENT.

i-Decimal Number System is used in computer.

ii-A BIT stands for Binary Digit.

iii-The combination of eight Bits is called a Byte.

iv-The system of numeration with which we are familiar is called the “Binary Number System”.

v- In Binary Number System 0 means OFF and 1 means ON

 

CHAPTER 3 COMPUTER NETWORKS P: 23-31

ACTIVITY

  1. FILL THE BLANK SPACES WITH CORRECT WORDS.
i. Nineteenth Century was the age of ——————–

ii. LAN stands for —————————

iii. MAN stands for ———————–

iv. WAN stands for ————————

v. Personal computer comes in———————– forms.

vi. A ———————-on the LAN connects to the sewer to run software.

vii. NOS stands for———————- .

viii, Coaxial cable contains a single central wire surrounded by———— and———–

ix. In Star Topology we use ——————–for networking.

X. In——————– all the PC’s are attached to single leaner cable.

Answers: (i- )(ii-)(iii-)(iv-)(v-)(vi-)

 

  1. GIVE THE ANSWER OF THE FOLLOWING QUESTIONS.
  2. How many types of popular Networks are there? Write note on any of two.

Answer:

  1. Write an essay about LAN and all of its capabilities.

Answer:

iii. Give advantages & disadvantages of LAN.

Answer:

  1. Write detailed note on Transmission Media.

Answer:

  1. How many types of network topologies are there? Write note on any two of them.

Answer:

 

(3)TICK (√ )THE RIGHT STATEMENT.

         i.            A collection of interconnected networks is called Internet.

ii.            An Internet is a group of independent computers attached to one another through communication media.

iii.            E-mail stands for Electronic Mail.

iv.            N.I.C stands for Network International Card.

v.            HUB provides central connection points for Workstations.

vi.            Coaxial Cable is just like our television cable.

vii.            There are four basic types of Network Topologies.

viii.            Star Hub Topology is an example of Telephone System.

Answers: (i-)(ii-)(iii-)(iv-)(v-)(vi-) (vii-)(viii-)

 

CHAPTER 4 WHAT IS INTERNET ? P: 33-41

ACTIVITY

  1. FILL THE BLANK SPACES WITH CORRECT WORDS.
         i.            Internet is an extension of the—————— to the entire world.

ii.            ADC stands for ——————–

iii.            DAC stands for ——————.

iv.            Modem is a word formatted from the initial letters of two words ———-and———–

v.            A —————-converts digital signals received from a computer into analog signals,

vi.            BPS is the abbreviation of ——————.

vii.            DTR stands for ——————–

viii.            A modem is just like a—————— between digital and analog signals,

Answers: (i- )(ii-)(iii-)(iv-)(v-)(vi-)(vii-)(viii-)
  1. GIVE THE ANSWER OF THE FOLLOWING QUESTIONS.

i-What are digital and analog devices?

Answer:

ii-Define ADC and DAC.

Answer:

iii-What are Modulation and Demodulation?

Answer:

iv-What is a Modern?

Answer:

v-How does Internet work?

Answer:

 

(3)TICK (√ )THE RIGHT STATEMENT.

         i.            lf we want to connect with the internet we will have to connect to a Local Service Provider.

ii.            The word “Modulate” means to convert digital signals into analog signals,

iii.            The word “Demodulate” means to convert analog signals into digital signals.

iv.            Uploading is the process in w11ich a user sends computer information from his computer to another computer.

v.            Downloading is the process in which a user receives information from another computer.

Answers: (i-)(ii-)(iii-)(iv-)(v-)

 

 

CHAPTER 5 HOW THE INTERNET WORKS ? P: 43-57

ACTIVITY

  1. FILL THE BLANK SPACES WITH CORRECT WORDS.
l- The Internet was launched by the——————– in the late —————–.

ll The Internet of———————- thousands of groups on various subjects.

iii- We require special ——————–to use the Internet.

iv- ISDN stands for ——————

v- ISDN is———————————- times quicker than the speediest modems

vi- WWW stands for ———————-

vii- ISP stands for ——————

viii-There are types of modems,

xi- BPS stands for —————–

x- ————————serves as a medium to exchange information between a computer and the Internet.

Answers: (i- )(ii-)(iii-)(iv-)(v-)(vi-)   (vii-)(viii-)(ix-)(x-)
  1. GIVE THE ANSWER OF THE FOLLOWING QUESTIONS.

i-Explain the internet?

Answer:

ii-When was the Internet launched and by whom?

Answer:

iii-What are the various facilities the Internet offers?

Answer:

iv-Write the names of equipments needed to be connected to the Internet

Answer:

v-Name two kinds of Modems What IS the difference between the two’7

Answer:

vi-Explain Logging On and Logging Off

Answer:

 

(3)TICK (√ )THE RIGHT STATEMENT.

         i.            The Internet enables us to exchange messages throughout the world.

ii.            Any information on any subject cannot be obtained on the Internet.

iii.            The Internet offers thousands of simple games free of cost.

iv.            We cannot purchase desired goods and services on the Internet.

v.            Modem speed is measured in BPS.

vi.            The Internal modem is less expensive than an external modem.

Answers: (i-)(ii-)(iii-)(iv-)(v-)(vi-)

 

CHAPTER 6 MORE ABOUT WORD PROCESSING P:59-76

ACTIVITY

  1. WRITE THE ANSWER OF THE FOLLOWING QUESTIONS IN SHORT FORM.

 

i-How is the Margins Set in a document?

Answer:

ii-How do you set the Paper Size in Word?

Answer:

iii-Describe the procedure to change Fonts and Font Colours of the text?

Answer:

iv-How do you set the document in a Two Columns Style?

Answer:

v-How do you Print your document?

Answer:

 

 

 

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