4. OBJECTIVES
At the end of the Lesson the student must be able to:
1. Define Computer network and Data Communication
concepts;
2. lan cable routes in accordance with network design
through diagram
3. Differentiate LAN and WAN network connection.
5. NETWORK TERMS:
Network Server
• is a powerful computer whose sole purpose is to serve
network clients.
Peers
• mean any computer sharing the same protocol layer
with another computer.
Workstation
• is any network computer that connects to and request
resources from a network.
6. NETWORK TERMS:
Protocol
• refers to the specific standards governing the sending
and receiving of data.
Server
• is the computer on the network that manages the
network resources, such as the shared files, programs
and printers?
7. NETWORK
• refer to any interconnected group or system.
• is any method of sharing information between two
systems (human or mechanical).
• A network consists of two or more computers that are
linked in order to share resources (such as printers
and CD-ROMs), exchange files, or allow electronic
communications.
8. BASIC TYPES OF NETWORKS
• Personal Area Network (PAN)
• Local Area Network (LAN)
• Metropolitan Area Network(MAN)
• Wide Area Network (WAN)
9. PERSONAL AREA NETWORK (PAN)
• is a computer network used for communication
among computer devices close to one person.
10. LOCAL AREA NETWORK
• the smallest of the three network types, consists of
PCs connected together within a limited area, such as
within the same building, floor or department.
11. METROPOLITAN AREA NETWORK
• is a network that spans no more than 50 miles. It is
design to connect LANs spanning a town or city
12. WIDE AREA NETWORK (WAN)
• is used to distribute information thousands of miles
among thousands of users.
13. NETWORK ARCHITECTURE
Server/Client
• use a network operating system to manage the entire
work.
peer-to-peer
• no centralized computer oversees the networks, no
server, and computers simply connect with each other
in a network group to share files, printers, and
internet access.
14. BENEFITS OF SHARING INFORMATION
VIA NETWORK
• Software and data files can be shared for access by
multiple users
• Electronic mail (email) can be sent and received
• Collaboration features allow contributions by multiple
users to a single document
• Remote-control programs can be used to
troubleshoot problems or show new users how to
15. • Group 1 - Network topology (Star Topology)
• Group 2 - Network topology (Ring Topology)
• Group 3 - Network topology (Bus Topology)
• Group 4 – Network topology (Mesh Topology)
• Group 6 - Network Communications Technology
(Internet)
• Origin
• Examples (pictures)
• Definitions
16. ACTIVITY I
•What is a network?
•What are the three basic types of network?
•What is the difference between LAN and
WAN?
17. ACTIVITY II (NETWORKING DIAGRAM)
1. Draw an example of a network / networking.
2. Use only common shapes (ex. line, square, circle or
rectangle) to represent the actual figures /objects.
3. Indicate the name of network drawn.
18. SENARIO
•Your mother wants to transfer files from her
smartphone to her new laptop. What possible
network connection can be used to do the job
since both devices capable to connect via
wireless transmission? Explain your answer and
give the steps how smartphone connects to
laptop.
Editor's Notes
How do computers communicate?
The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams.
Networking is like communication
Why is communication important in building a positive family relationship?
PAN are printers, fax machines, telephones, PDA’s or scanners. The reach of a PAN is typically within about 20-30 feet (approximately 6-9 meters).
