Mangrove, Jakarta, and Their Relationship

Today, I would like to share something related with the title which is mangrove and jakarta! Including my comment. But firstly, I'll explain about mangrove.

Topology of Network and the Types (IT)

                                                               

  Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network. Essentially, it is the topological structure of a network, and may be depicted physically or logically. Physical topology refers to the placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design. Distances between nodes, physical interconnections, transmission rates, and/or signal types may differ between two networks, yet their topologies may be identical.

These are 3 types of Network Topology:

1. Bus


Linear bus
In local area networks where bus topology is used, each node is connected to a single cable. Each computer or server is connected to the single bus cable. A signal from the source travels in both directions to all machines connected on the bus cable until it finds the intended recipient. If the machine address does not match the intended address for the data, the machine ignores the data. Alternatively, if the data matches the machine address, the data is accepted. Since the bus topology consists of only one wire, it is rather inexpensive to implement when compared to other topologies. However, the low cost of implementing the technology is offset by the high cost of managing the network. Additionally, since only one cable is utilized, it can be the single point of failure. If the network cable is terminated on both ends and when without termination data transfer stop and when cable breaks, the entire network will be down.
The type of network topology in which all of the nodes of the network are connected to a common transmission medium which has exactly two endpoints (this is the 'bus', which is also commonly referred to as the backbone, or trunk) – all data that is transmitted between nodes in the network is transmitted over this common transmission medium and is able to be received by all nodes in the network simultaneously.
Note: When the electrical signal reaches the end of the bus, the signal "echoes" back down the line, causing unwanted interference. As a solution, the two endpoints of the bus are normally terminated with a device called a terminator that prevents this echo.
Distributed bus
The type of network topology in which all of the nodes of the network are connected to a common transmission medium which has more than two endpoints that are created by adding branches to the main section of the transmission medium – the physical distributed bus topology functions in exactly the same fashion as the physical linear bus topology (i.e., all nodes share a common transmission medium).

2. Star

Extended star
In local area networks with a star topology, each network host is connected to a central hub with a point-to-point connection. In Star topology every node (computer workstation or any other peripheral) is connected to central node called hub or switch. The switch is the server and the peripherals are the clients. The network does not necessarily have to resemble a star to be classified as a star network, but all of the nodes on the network must be connected to one central device. All traffic that traverses the network passes through the central hub. The hub acts as a signal repeater. The star topology is considered the easiest topology to design and implement. An advantage of the star topology is the simplicity of adding additional nodes. The primary disadvantage of the star topology is that the hub represents a single point of failure.
A type of network topology in which a network that is based upon the physical star topology has one or more repeaters between the central node (the 'hub' of the star) and the peripheral or 'spoke' nodes, the repeaters being used to extend the maximum transmission distance of the point-to-point links between the central node and the peripheral nodes beyond that which is supported by the transmitter power of the central node or beyond that which is supported by the standard upon which the physical layer of the physical star network is based.
If the repeaters in a network that is based upon the physical extended star topology are replaced with hubs or switches, then a hybrid network topology is created that is referred to as a physical hierarchical star topology, although some texts make no distinction between the two topologies.
Distributed Star

A type of network topology that is composed of individual networks that are based upon the physical star topology connected in a linear fashion – i.e., 'daisy-chained' – with no central or top level connection point (e.g., two or more 'stacked' hubs, along with their associated star connected nodes or 'spokes').
3. Ring

A network topology that is set up in a circular fashion in which data travels around the ring in one direction and each device on the ring acts as a repeater to keep the signal strong as it travels. Each device incorporates a receiver for the incoming signal and a transmitter to send the data on to the next device in the ring. The network is dependent on the ability of the signal to travel around the ring. When a device sends data, it must travel through each device on the ring until it reaches its destination. Every node is a critical link

Resources:  http://en.wikipedia.org/wiki/Network_topology

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1st IT Task in Year 9 Semester 2

Android: The cool, the bad and the ugly
Resource: http://m.blogs.computerworld.com/mobile-and-wireless/20597/my-week-android-cool-bad-and-

Are You Into Art, Sport, or Academic?

So now, i would like to post something which is a questionnaire!! Try this and find your interest

     1. What are you doing when you have your free time?

          a. Drawing or listen to the music

          b. Playing basketball or soccer

          c. Reading or writing

 

      2. What do you want to do someday?

          a.Play theater in Austria

          b.Have a match with Maria Sarapova

          c.Study and invent something new

   

     3. What do you want to be?

          a.An actor or actress

          b.An athlete 

          c.A professor 

   

     4.  Who do you want to meet?
          a.Pablo Picasso
          b.Liem Swie King
          c.Albert Einstein


     5.What's your favourite color?
          a.Pink or purple
          b.Dark blue or black
          c.Green or brown


AND....... This is the RESULT!!!

1. Mostly a
          You're an art addict. You always keep on doing art stuffs
2.Mostly b
          You're a good sport person. You always want to train your body
3.Mostly c
          You're a diligent student. You're studying everyday to whet your brain