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Topic 19-
Networks
- Networks
- What is a network
- A network is when two
or more computers are
linked together so they
can share resources
- Client- Server
Networks-A
powerful computer
called the server, is
used to store data
for the network,
which the network
is dependent on,
- Peer to peer
network- All
computer share
resources, as
more people
use, it slows
down
- Client- Server
Networks-A
powerful computer
called the server, is
used to store data
for the network,
which the network
is dependent on,
- A network is when two
or more computers are
linked together so they
can share resources
- What is a network
- LANS AND WANS
- LANS
- LANS ( Local Area
Network) - Confined
to a small area,
located to a single
building, Cheap to
build and run
- LANS ( Local Area
Network) - Confined
to a small area,
located to a single
building, Cheap to
build and run
- WANS
- WAN-( Wide Area
Network)- Cover a wide
area, used in different
buildings , expensive to
build and run
- WAN-( Wide Area
Network)- Cover a wide
area, used in different
buildings , expensive to
build and run
- LANS
- Topologies
- Ring Toplogies
- Advantages- Easy
to add extra devices,
each computer has
same access
- Disadvantages- If there is
a break, whole network
fails, faults are difficult to
locate, impossible to keep
network runing while
adding new hardware
- Advantages- Easy
to add extra devices,
each computer has
same access
- Bus Toplogies
- Advantages- All
devices are connnected
using one cable,
signals are passed
along the backbone in
each direction. Cost
effective, and easy to
add extra devices
- Advantages- All
devices are connnected
using one cable,
signals are passed
along the backbone in
each direction. Cost
effective, and easy to
add extra devices
- Star Toplogies
- Advantages-
Fault and load
tolerant and easy
to add extras
- Disadvantages-
Higher Cost, and
dependance on
router/ switch.
- Advantages-
Fault and load
tolerant and easy
to add extras
- Ring Toplogies
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