INTRODUCTION TO COMPUTER NETWORKING

1. COMPUTER NETWORKING

2. Definition
A network can be defined as two or more computers
connected together in such a way that they can share
resources.
OR
A network is simply a collection of computers or other
hardware devices that are connected together, either
physically or logically, using special hardware and
software, to allow them to exchange information and
cooperate. Networking is the term that describes the
processes involved in designing, implementing, upgrading,
managing and otherwise working with networks and
network technologies.
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3. ADVANTAGES OF COMPUTER
NETWORKING
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• Connectivity and Communication
• Data Sharing
• Hardware Sharing
• Internet Access
• Internet Access Sharing
• Data Security and Management
• Performance Enhancement and Balancing

4. ADVANTAGES OF COMPUTER
NETWORKING
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•Network Hardware, Software and Setup Costs
•Hardware and Software Management and Administration
Costs
•Undesirable Sharing
•Illegal or Undesirable Behavior
•Data Security Concerns

5. CLASSIFICATION OF COMPUTER
NETWORKING
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6. Computer network is classified into 3
major types
1. Local area network (LAN)
2. Wide area network(WAN)
3. Metropolitan Area Network (MAN)
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7. Local area network (LAN)
A group of devices connected to one another in a single
physical location, such as a building, office, or home, is
known as a local area network (LAN). A LAN can range in
size from a tiny, single-user home network to a big,
enterprise network with thousands of users and devices in
an office or school.
In order to link devices to internal servers, web servers,
and other LANs via wide area networks, a LAN is made up
of cables, access points, switches, routers, and other
components.
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8. Wide area network(WAN)
A wide area network, or WAN for short, is a sizable
information network unconnected to a specific area.
Through a WAN provider, WANs can enable
communication, information sharing, and much more
between devices all over the world. The largest and most
well-known example of a WAN is the Internet.
WANs are used to connect LANs and other types of
networks together, so that users and computers in one
location can communicate with users and computers in
other location.
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9. Metropolitan Area Network (MAN)
A metropolitan area network (MAN) is a network that
interconnects users with computer resources in a geographic
area or region larger than that covered by even a large local
area network (LAN) but smaller than the area covered by a
wide area network (WAN). The term is applied to the
interconnection of networks in a city into a single larger
network (which may then also offer efficient connection to a
wide area network). It is also used to mean the
interconnection of several local area networks by bridging
them with backbone lines. The latter usage is also sometimes
referred to as a campus network
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10. THANKYOU
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