Thursday, 26 April 2012


Assalamualaikum and hello boys and girls. It's a new topic for a new week now so let's see what I have learnt in the last lecture ^^

As you can see based on the post title, it is all about CABLING. Do you know what cabling is defined as?
Well, here's the answer!

Cabling is the medium through which the information or data is usually transmitted from one network device to another.

Moving on, there are various types of cables that we can find in the market nowadays, but for this post, you readers will be able to know about FOUR kinds of it. 

1) Unshielded Twisted Pair Cable (UTP) 

Here's a picture of UTP cable :)
  • It has four pairs of wires inside the jacket which are twisted.
  • Reason: To eliminate interference such as noises from adjacent pairs and also other electrical devices.
  • There are actually five categories of this UTP cable and each and every one of it has its own application.
  • Maximum cable: 100 meters. 
2) Shielded Twisted Pair Cable (STP)
This is STP cable.
  • There are two wires wrapped in a foil shielding to help provide more reliable data communication.
  • This means it is clearer compared to UTP cable. 
  • Transfer data in the form of current.
3) Co-axial Cable
And this is co-axial cable ^^
  • Co-axial cable has a single copper conductor at its center.
  •  Transfer data in the form of current.
  • Usually applied with microwave transmission, computer and instrumentation data connections.
  • The inner conductor might be solid or stranded. However, stranded inner conductor is more flexible.
4) Fiber Optics Cable
Fiber Optic Cable
  • This transmit light rather than electronic signals which eliminates the problem of electrical interference.
  • It is ideal for certain environments which protects the electronic flow.
  • Fiber Optic Cables transmit signals over a much longer distance and it has the maximum length of 2000 meters.
In this week's lecture, there was also a presentation from two groups regarding the topic of BLOGGING as well as SEARCH ENGINES. Both of these presentations were attention-grabbing as somehow, it helps me to do any tasks in my daily activities. Well, it is actually an addition of new knowledge and so I loved it. ^^ 

And with that, have fun scrolling through! 
Till next time ^^

Friday, 6 April 2012

Topology, Protocol and Architecture

NETWORK TOPOLOGY: The study of the arrangement or mapping of the elements of a network especially the physical and logical interconnections between nodes.

PHYSICAL TOPOLOGY: The physical layout of devices on a network and the way the workstations are connected to the network. 

LOGICAL TOPOLOGY: The mapping of the flow of data between nodes. 


Linear Bus Topology

Above is the linear bus topology and it consists of a main run of cable with a terminator at each end. The protocol that can be used with this topology are Ethernet and LocalTalk.

Star Topology
For star topology, each node is connected to a hub or a connector. Similar to linear bus topology, it is applied to a protocol such as Ethernet and also LocalTalk. 

Ring Topology
As for ring topology, each of the system is connected to its respective neighbor forming a ring. However, if one of the workstations or nodes are disabled, therefore, the whole system would be disabled. FDDI (Fiber Distributed Data Interface) is one of the protocol that uses ring topology in its systems.

Tree Topology
Tree topology combines features of linear bus and star topology. Tree topology is also known as hybrid.


Protocol is a set of rules that governs the communication between computers of the network. 

Examples of protocol:
1. Ethernet
2. LocalTalk
3.Token Ring
4. TCIP/WAP which is for the internet
5. WiFi
6. Bluetooth

  • A standard switching approach constructed to unify telecommunication and computer networks.
  • Uses asynchronous time-division multiplexing and it encodes data into a small and fixed-size cells compared to Ethernet protocol that uses packets or frames. 

Hope you readers had fun absorbing all the new information and knowledge. Till next time! ^^