9. Types of Network According to Geographical
Size
PAN (Personal Area Network)
LAN (Local Area Network)
CAN (Campus Area Network)
MAN (Metropolitan Area Network)
WAN (Wide Area Network)
WLAN (Wireless Local Area Network)
10. PAN (Personal
Area Network)
• A personal area network (PAN) is a
computer network for interconnecting
electronic devices centered on an
individual person's workspace. A PAN
provides data transmission among
devices such as computers,
smartphones, tablets and personal
digital assistants. PANs can be used for
communication among the personal
devices themselves, or for connecting
to a higher level network and the
Internet where one master device takes
up the role as gateway. A PAN may be
wireless or carried over wired
interfaces such as USB.
11. LAN (Local Area Network)
• is a network in which computers are relatively close together, such as within
the same office or building.
12. CAN (Campus Area Network)
• A campus area network (CAN) is
made up of an interconnection of
LANs within a limited
geographical area. The networking
equipment (switches, routers) and
transmission media (optical fiber,
copper plant, Cat5 cabling, etc.)
13. MAN (Metropolitan Area Network)
• is a network that’s smaller than a typical WAN but larger than a LAN.
• Typically, a MAN connects two or more LANs that are within the same city but are far
enough apart that the networks can’t be connected using a simple cable or wireless
connection.
14. WAN (Wide Area Network)
• is a network that spans a large geographic territory, such as an entire city or
region, or even an entire country. WANs are typically used to connect two or
more LANs that are relatively far apart.
16. WLAN (Wireless Local Area Network)
• a LAN based on WiFi wireless network technology
17. Intranet and Internet Specifications
• • Intranet: An intranet is a private network that is contained within an enterprise. It
may consist of many interlinked local area networks and also use leased lines in the
wide area network. • An intranet uses TCP/IP, HTTP, and other Internet protocols
and in general looks like a private version of the Internet. With tunneling,
companies can send private messages through the public network, using the public
network with special encryption/decryption and other security safeguards to
connect one part of their intranet to another.
• • Internet: is a worldwide system of computer networks - a network of networks in
which users at any one computer can, if they have permission, get information from
any other computer (and sometimes talk directly to users at other computers).
18. Client and Server
computer role in
networking
A network server is a computer
designed to act as central repository
and help in providing various resources
like hardware access, disk space, printer
access, etc,. to other computers in the
network.
A network server might not differ from
a workstation in hardware, but the
functionality it performs clearly
differentiates it from other
workstations. Network servers helps in
simplifying the different tasks for
system administrators including those
centering around management.
Any configuration or security updates
can be applied to a network server
instead of individually passing to
different computers connected to the
network.
19. Client and Server
computer role in
networking
A Client is a piece of computer
hardware or software that accesses
a service made available by a
server as part of the client–server
model of computer network
Client computers normally
request and receive information
over the network client. Client
computers also depends primarily
on the central server for
processing activities
20. Peer-to peer network
• A peer-to-peer network is a network where the
computers act as both workstations and servers.
• great for small, simple, and inexpensive networks.
• In a strict peer-to-peer networking setup, every
computer is an equal, a peer in the network.
• Each machine can have resources that are shared
with any other machine.
• There is no assigned role for any particular device,
and each of the devices usually runs similar
software. Any device can and will send requests to
any other
21. Client/Server
Networking
In this design, a small number of
computers are designated as
centralized servers and given the task
of providing services to a larger
number of user machines called clients
