2. Network
A system of interconnected computers
and computerized peripherals such as
printers is called computer network.
This interconnection among computers
facilitates information sharing among
them.
Computers may connect to each other by
either wired or wireless media.
3. Network
• A computer network consists of a
collection of computers, printers
and other equipment that is
connected together so that they
can communicate with each
other.
4. Network application
A Network application is any application
running on one host and provides a
communication to another application
running on a different host.
the application may use an existing
application layer protocols such as:
HTTP(e.g. the Browser and web server),
SMTP(e.g. the email-client).
