The document discusses different types of computer networks: 1) Bus networks connect all computers to a single cable or bus, making them cheap to install but slow if the main cable breaks. 2) Ring networks connect computers in a closed loop, allowing data to pass quickly in one direction but slowly if it must pass through every computer. 3) Star networks connect all computers to a central hub or switch, providing faster connections but at a higher cost than bus or ring networks. 4) Hybrid networks combine elements of the basic network types.

1. By: Momina

2.  It is basically how different parts are arranged
and connected together in a network.

3. Bus Network Star Network
Hybrid
Ring Network
Network

4.  Think of it like this: when you walk into a bus,
you need to pass all the other seats before
you get to the one you actually want to sit on.
So in computer terms: it is used to connect
all of the computers together; each
computer has a cable connecting it to the
‘bus’.
Advantages/Disadvantages Back to Network Types

5. Advantages Disadvantages
Cheap to install. Why? It can be slow. Why?
Because you only need to connect All the cables are using the same
every computer to a single cable. cable whilst trying to
communicate.
If there is a break in the main
cable; the entire network will stop
working.
Back to bus networks Back to Network Types

6.  For this one; you need to think of a ring.
All the computers in a ring network are literally just
connected to the ring.
Another way to look at it is; connected the two ends of a
bus network.
Advantages/Disadvantages Back to Network Types

7. Advantages Disadvantages
Data transfer is quickly because The data sent via the ‘cable’ must
the data only travels in one pass through every computer
direction. between the sender and the
receiver; making the network slow.
The network can cope with a break
in the network.
How?
All the computers are still linked
together.
Back to Ring Network Back to Network Types

8.  All the computers are connected to one
central device. This device could be:
a) Hub : which is cheap but slow
b) Switch: which is expensive but fast
Advantages/Disadvantages Back to Network Types

9. What is a hubs job?
 Anything that comes in one port is sent out
to the others.
 Every computer connected to the hub "sees"
everything that every other computer on the
hub sees.
 It is usually used for small networks.

10. What does a switch do?
 It does the same thing as a hub but it has the
ability to "learn" where particular address is.

11. Advantages Disadvantages
Its comparatively fast because each Expensive to install. Why?
computer has its own connection Buying lots of wire and the central
to the central device device
If one cable breaks; the system will The whole system will break down
not be affected; only that f the central device fails or breaks
particular computer will be down
Back to Star Networks Back to Network Types

12.  It is a network which consists of one or more
of the basic networks.
E.g.
Several star networks linked together
Back to Network Types