_ABOUT COMPUTER NETWORK_

  Quotes for this post:

                                   

                            " Dreams don't work unless you do "

       

    Hai guys. I hope you're in a good condition and be loved and kind to everyone. Today i will post about the things that we need it this time and without that we can't connect to each other. I always thinking that network ni sangat usefull to people nowadays especially yang kerja kat office tu memang perlukan network kan? So, as you all know i will explain about the network. So stay tune guys👌.

                                                           

WHAT IS NETWORK ?

Network

A network is defined as a group of two or more computer systems linked together. Another that network is multiple devices that communicate with one another. It can be as small as two computers or as large as billions of devices. While a traditional network is comprised of desktop computers, modern networks may include laptops, tablets, smartphones, televisions, gaming consoles, smart appliances, and other electronics. Example of application of network:

• E-mail

• The Web

• Instant Messaging

• File Transfer between two accounts on two computers (FTP) 

• Multi-user networked games

• Streaming stored video clips

• Internet Phone

• Real time video conferencing

 COMMUNICATION DEVICES?

Actually what is a communication device? mesti semua nak tahu kan? So this is comunication device

A communication device is a hardware device capable of transmitting an analog or digital signal over the telephone, other communication wire, or wireless. The best example of a communication device is a computer Modem, which is capable of sending and receiving a signal to allow computers to talk to other computers over the telephone.

Communication Device

Communication device examples

Below is a full listing of all the different types of communications devices you may encounter when dealing with a computer.

• Bluetooth devices

• Infrared devices

• Modem (over phone line)

• Network card (using Ethernet)

• Smartphone

• Wi-Fi devices (using a Wi-Fi router) (examples shown below)

Transmission Mediums in Computer Networks

Data is represented by computers and other telecommunication devices using signals. Signals are transmitted in the form of electromagnetic energy from one device to another. Electromagnetic signals travel through vacuum, air or other transmission mediums to move from one point to another(from sender to receiver).

Advantages of Computer Networking

1. Easy Communication and Speed

It is very easy to communicate through a network. People can communicate efficiently using a network with a group of people. They can enjoy the benefit of emails, instant messaging, telephony, video conferencing, chat rooms, etc.

2. Ability to Share Files, Data and Information

This is one of the major advantages of networking computers. People can find and share information  

3. Sharing Hardware

Another important advantage of networking is the ability to share hardware. For an example, a printer can be shared among the users in a network so that there’s no need to have individual printers for each and every computer in the company. This will significantly reduce the cost of purchasing hardware.

4. Sharing Software

Users can share software within the network easily. Networkable versions of software are available at considerable savings compared to individually licensed version of the same software. Therefore large companies can reduce the cost of buying software by networking their computers.

5. Security

Sensitive files and programs on a network can be password protected. Then those files can only be accessed by the authorized users. This is another important advantage of networking when there are concerns about security issues. Also each and every user has their own set of privileges to prevent them accessing restricted files and programs.and data because of networking. 

Disadvantages of Networking

1. Breakdowns and Possible Loss of Resources

One major disadvantage of networking is the breakdown of the whole network due to an issue of the server. Such breakdowns are frequent in networks causing losses of thousands of dollars each year. Therefore once established it is vital to maintain it properly to prevent such disastrous breakdowns. The worst scenario is such breakdowns may lead to loss of important data of the server.

2. Expensive to Build

Building a network is a serious business in many occasions, especially for large scale organizations. Cables and other hardware are very pricey to buy and replace.

3. Security Threats

Security threats are always problems with large networks. There are hackers who are trying to steal valuable data of large companies for their own benefit. So it is necessary to take utmost care to facilitate the required security measures.

4. Bandwidth Issues

In a network there are users who consume a lot more bandwidth than others. Because of this some other people may experience difficulties.

Although there are disadvantages to networking, it is a vital need in today’s environment. People need to access the Internet, communicate and share information and they can’t live without that. Therefore engineers need to find alternatives and improved technologies to overcome issues associated with networking. Therefore we can say that computer networking is always beneficial to have even if there are some drawbacks.