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Statement:
Student 1: Ctrl + ____ has the command
________. Am I right, (Student 2 Name) ?
Student 2: Yes, because the shortcut key for
(command) is Ctrl + _____
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CTRL + E =
CENTER TEXT
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CTRL + P =
PRINT
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CTRL + A =
SELECT ALL
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CTRL + R =
RIGHT ALIGN TEXT
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CTRL + S =
SAVE
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A COMPUTER NETWORK
is a communication system that connects two or more computers,
enabling them to share resources such as hardware, data and software
• A typical network consists of the
following:
• NODES. These refers to anything
connected to a network. They may be
computers or devices such as printers
or scanners.
• CONNECTING MEDIUM (WIRED OR
WIRELESS). This is the channel by which
data travels along the computer
network.
• SPECIALIZED NETWORK EQUIPMENT.
Examples of these are routers or hubs.
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INTERNET
ROUTER
PRINTER
SCANNER
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Here are some key terms used:
Backbone
•The main cabling of a
network that all of
the segments connect
to.
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Here are some key terms used:
Segment
• It is any portion of a network that is connected to the rest
of the network through a switch, bridge or router
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Here are some key terms used:
Broadcast
•In a broadcast, a message is
sent to all hosts connected to
the network
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Here are some key terms used:
Multicast
•It is the sending of
messages to a selected
group of recipients in a
network.
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Here are some key terms used:
Unicast
•It is sending of messages
to a single network
destination.
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SHARING OF DATA AND PROGRAMS
NETWORK SERVER
• Is a central computer which stores all the data and programs of the
different computers connected to it.
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SHARING OF DATA AND PROGRAMS
FILE SERVER
• A server that stores a master copy of data for users to
access
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CLIENT SERVER
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NETWORKS
DIRECT POINT-TO-POINT
NETWORK
•ONLY TWO computers are connected
to each other over every single
communication channel.
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NETWORKS
LOCAL AREA NETWORK
(LAN)
•Connects a group of computers
that are physically located
within small area.
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NETWORKS
LOCAL AREA NETWORK
(LAN)
Examples:
•
•
•
•
Home networking
Offices
School networking
Campus university
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NETWORKS
WIDE AREA NETWORK (WAN)
•Connects computers spread across a
large geographical area, covering
number of cities, states, or even
countries.
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NETWORKS
WIDE AREA NETWORK (WAN)
Examples:
• Private Network
• Mobile Broadband
• Business Services
• Last Mile
• Internet
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NETWORKS
METROPOLITAN AREA NETWORK
(MAN)
•It is a type of WAN
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NETWORKS
TINY AREA NETWORK
(TAN)
•It is a type of LAN
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ENGAGEMENT ACTIVITY
Directions: Open MS WORD
and type the given questions
and type your answers below
each question.
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ENGAGEMENT ACTIVITY
1. Does your school have a computer
network?
2. How many computers are attached to
it?
3. What are the advantages and
disadvantages of having a computer
network in school?
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GROUP ACTIVITY
Directions: Design and illustrate
the given type of network using
MS WORD
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GROUP ACTIVITY
Group I -Direct point-to-point network
Group II -LAN (Local Area Network)
Group III -LAN with bridge
Group IV -WAN (Wide Area Network)
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Launch