Send Me An Email If You Want To Take Me To Dinner
In this time and place, is there anyone among us who does not
have at least one email account to their name? I have several
email addresses to my name, and each one of those serves their
respective purposes.
I keep one for my friends' emails, another for free
e-newsletters, and one as a back up for all my business
transaction emails. Now who does not keep an email account? My
hairdresser keeps one; even my six-year old niece has an email
account to her name!
Email, or electronic mail, started in 1965 as a means of
communication for a set of users of a shared mainframe computer.
Email came into use long before the Internet was developed. In
fact, early email systems played a crucial role in the creation
and development of the Internet.
Email then allowed multiple users to exchange messages between
different computers. In 1971, Ray Tomlinson, an engineer,
introduced the use of the "@" sign was introduced to separate
the users' name from their sending machines. The sign also
designated the receiving machine.
Email became popular and known because of its functionality and
advantages. But how does this form of electronic communication
work?
As you receive dozens of email messages during the day, you need
an email client to be able to read them. Many people in offices
use stand alone email clients such as Microsoft Outlook, Outlook
Express, Eudora, or Pegasus.
If you are subscribed to free internet-based services like
Yahoo, Hotmail, and GMail, you are using an email client that is
displayed in a webpage.
An email client does the following things: 1) it shows a list of
your messages which are already in your mailbox by showing the
message headers (the header shows the sender, email subject, and
other details such as message size, or the time and date of the
message); 2) it allows you to select a message header so you can
read the body of the message; 3) it allows you to write new
email messages and send them; and 4) it allows you to add file
attachments to the messages you send and lets you save the
attachments from the messages you receive.
Even if you have an email client in your computer machine, you
still need an email server to connect to.
In the simplest terms, an email server works like this: 1) it
has a list of different email accounts, one for each person who
can receive an email message in the server (examples of account
names are psmith, bcallahan, etc.); 2) it has a text file for
each and every account on the list (the server has text files in
its directory called PSMITH.TXT, BCALLAHAN.TXT, etc.); 3) if
PSMITH wants to send MCALLAHAN a message, he would write a text
message in the email client and indicate that the message goes
to MCALLAHAN, and when PSMITH sends the message, the email
client will connect to the server and pass the message sender's
name (PSMITH), the recipient's name (MCALLAHAN), and the message
body; and 4) the server would place the information at the
bottom of the MCALLAHAN.TXT file.
For many people today, their email systems run on two different
servers called the SMTP server and either of a POP3 or an IMAP
server.
SMTP, short for simple mail transfer protocol, handles outgoing
email messages, while the POP3, (POP means post office protocol)
or the IMAP (internet mail access protocol) server handles the
incoming email messages. This is a very simple system, but the
real email systems in use today not so complicated than this.
Communication has taken an advanced path through the years. Now,
more and more sophisticated systems are being introduced to
facilitate fast exchange of messages and documents among
different people from different places. And email is just one of
these advances which man has learned to enhance and a technology
whose perfection is still to come.