The document discusses modern forms of communication like fax and the internet. It describes how a fax machine works by connecting to a phone line through a modem and transmitting copies of printed images. It also explains some advantages and limitations of using fax, such as the ability to quickly exchange information but the lack of confidentiality. The document then provides a brief introduction to browsing and searching the world wide web on the internet.

1. MODERN FORMSMODERN FORMS
OFOF
COMMUNICATIONCOMMUNICATION
FAX, INTERNET: INTRODUCTION,FAX, INTERNET: INTRODUCTION,
BROWSING AND SEARCHINGBROWSING AND SEARCHING
THE INTERNET, WORLD WIDETHE INTERNET, WORLD WIDE
WEBWEB

2. FAXFAX
The facsimile machine is aThe facsimile machine is a
device for transmitting copiesdevice for transmitting copies
of printed images overof printed images over
telephone line.telephone line.

3. HOW FAX MACHINEHOW FAX MACHINE
WORKS?WORKS?
Step 1-Step 1- The machine isThe machine is
connected to the telephoneconnected to the telephone
through a modem (modulator-through a modem (modulator-
demodulator).demodulator).

4. Step 2-Step 2- The sender has to dialThe sender has to dial
the receiver’s fax number,the receiver’s fax number,
insert the documents into theinsert the documents into the
machine and press the startmachine and press the start
button.button.

5. Step 3-Step 3- The receiving machineThe receiving machine
decrypts the signals anddecrypts the signals and
uses its in-built printer touses its in-built printer to
produce an exact photo copyproduce an exact photo copy
of the original page.of the original page.

6. COSTCOST
The cost of the printout isThe cost of the printout is
borne by the receiver.borne by the receiver.

7. The print out contains:The print out contains:
1.Time1.Time
2. Date2. Date
3. Fax number of the sender’s3. Fax number of the sender’s
machine.machine.

8. CONFIRMATIONCONFIRMATION
PRINTOUTPRINTOUT
The sender gets a confirmationThe sender gets a confirmation
print out showing the receiver’s-print out showing the receiver’s-
1. F1. Fax numberax number
2. Date2. Date
3. Time of transmission3. Time of transmission
4. The number of pages4. The number of pages
transmitted.transmitted.

9. IMPORTANTIMPORTANT
Due to technical problems theDue to technical problems the
received copy may not be clear,received copy may not be clear,
therefore it is customary totherefore it is customary to
telephone the receiver that thetelephone the receiver that the
copy fax has been received.copy fax has been received.

10. COMPUTERS AND FAXCOMPUTERS AND FAX
Fax can be sent through computer ifFax can be sent through computer if
the required software and a modemthe required software and a modem
are installed and a telephone line isare installed and a telephone line is
connected to it. Latest models ofconnected to it. Latest models of
computers have inbuilt modem, andcomputers have inbuilt modem, and
a software for fax is included as parta software for fax is included as part
of Windows.of Windows.

11. LIMITATION-LIMITATION-
 Fax through computer, can transmitFax through computer, can transmit
only those messages which haveonly those messages which have
been created on the computer and itbeen created on the computer and it
cannot transmit a document as it is,cannot transmit a document as it is,
as the fax machine can.as the fax machine can.

12. ADVANTAGES-ADVANTAGES-
 Fax permits quick exchange ofFax permits quick exchange of
information between offices andinformation between offices and
organizations and individuals.organizations and individuals.
 Fax machine can be set to functionFax machine can be set to function
as a telephone or as a voice mailas a telephone or as a voice mail
answering machine by pressinganswering machine by pressing
relevant buttons.relevant buttons.

13.  Fax machine can also make twoFax machine can also make two
or more photocopies of aor more photocopies of a
document.document.

14. DISADVANTAGE-DISADVANTAGE-
 Fax cannot be used for confidentialFax cannot be used for confidential
messages as the printout can bemessages as the printout can be
seen by anyone. However, extraseen by anyone. However, extra
care can be taken when somecare can be taken when some
confidential message is being sent,confidential message is being sent,
by arranging through telephonicby arranging through telephonic
conversation to be alone whenconversation to be alone when
message is being sent.message is being sent.