Get a descriptive idea of how email and fax works and the presentation deal with ideas related to it.

2.  Electronic mail, commonly called email or e-
mail, is a method of exchanging digital
messages from an author to one or more
recipients.
 Modern email operates across the internet or
other computer networks.
 Some early email systems required that the
author and the recipient both be online at the
same time, in common with instant
messaging.

3.  Today’s email systems are based on a store
and forward model.
 Email servers accept, forward, deliver and
store messages.
 Neither the users nor their computers are
required to be online simultaneously ; they
need connect only briefly, typically to an
email server, for as long as it takes to send or
receive messages.

5.  Email allows individuals and groups to
communicate with one another.
 It works as an information interchange
 It is record keeping
 It helps in staying in touch professionally
 It also helps in transmitting documents

7.  Cheap, once you are online, there is no
further expense.
 Easy to reference. Sent and received
messages and attachments can be stored
safely, logically.
 Easy to use. Once you’re set up, sending and
receiving messages is simple. That goes for a
host of other email functions. Data storage
and contacts can be accessed quickly and
easily.

8.  Fast. Email is by far the fastest form of
written communication.
 Global. Web based email means you can
access your message anywhere online.

9.  Emotional responses. Some email causes
upset or anger. A reply in the heat of the
moment can’t be refracted.
 Information overload. Too many people send
too much information. They often cite ‘need
to know ’as the justification.
 Lacks the personal touch. Some things are
best left untyped. Email will never beat a
hand written card or letter when it comes to
relationships.

10. Misunderstandings. Email from people who
don’t take the time to read what they write
before clicking send. Time is wasted, either to
clarify or, acting on a misinterpretation of the
message.

12.  Fax also called as telefacsimile is the
telephonic transmission of scanned printed
material normally to a telephone number
connected to a printer or output device.
 The original document is scanned with a fax
machine, which processes the content as a
single fixed graphic image converting it into
bitmap, and then transmitting it through the
telephone system in the form of audio
frequency tone.

14.  To send a fax , you feed the page into input
slot and it’s pulled in between several pairs of
rollers. Larger fax machines have built-in
document feeders that automatically feed in
multiple pages from a stack.
 As the paper moves down, a bright light
shines onto it. White areas of the page reflect
a lot of light, black areas reflects little.
 The light reflects off the page into a light
detecting CCD.

15.  The CCD turns the analog pattern of black
and white areas on the page into a numeric
pattern of binary zeros and ones and passes
the information to an electronic circuit.
 The circuit sends the digital information
down the telephone line to the fax machine at
the receiving end.
 When you receive a fax, the same circuit
takes incoming digital information from the
phone line

16.  The thermal printer, operated by the circuit,
reproduces the incoming fax on the paper as
it moves fast.
 An automatic blade cuts the page and the
printed fax emerges from the output slot.

17.  Documents can be stored on the hard disk.
 The document can export to graphical
formats standard and be sent by email.
 Documents are printed from a publisher of
text.
 It saves time and shortens distances.

18.  They need constant maintenance.
 They need a landline phone number.
 They don’t support multitasking.
 They cannot be moved easily.
 They are not secure.
 They are not environment friendly.