The internet is built around four fundamental
services namely: Mail service, Telnet (Telecommunications network), FTP (File
Transfer Protocol) and Client/server facility.
Mail service: The introduction of mail service on the internet is one service that
made the internet popular. One of the commonest thing that bring people online
is checking of mails. Internet mail service has over shadowed the conventional
posting of letters which can take days to arrive its destination. With internet
mail service, message is sent from one email address to another with arrival at
the destination email almost instantly.
2.
Telnet:
A short representation for Telecommunications network. It allows one to create
a terminal session with a remote computer. Using Telnet, one can login to a
remote host computer at the other end of the world. One can access the computer
the conventional way whenever a connection is established. However, login
details of the remote computer must be made available and this automatically
makes one the administrator to the remote computer at that end. Telnet also
allows two programs to work hand in hand
by exchanging data over the internet.
3.
FTP:
It stands for File Transfer Protocol. It enables transfer of files from one
computer to another. FTP makes it possible to transfer file from a remote host to your computer, transfer files
from your computer to a remote host computer or transfer files from one remote
host to another. Technically, these three processes are referred to as
downloading, uploading and file copying.
Client/server facility: whenever two or more computers want to access the internet at the
same time, they can be connected using the client/server system of networking.
The server connects directly to the internet and send packets to other
computers that are referred to as clients. The computers in this network set up
are also able to share network resources like files, printers e.t.c.
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