The topic of this article is about the hardware basic components of a network. There are basic building blocks of hardware that compose a network. All networks are composing of it so that it can connect the nodes of the network. One example is the network interface cards that we will focus on this article. A network interface card or network adapter is a computer hardware having the purpose of allowing communication between computers through the network. It will have access to the networking medium.
Next is type of hardware component are repeaters. The purpose of a repeater is to accept or receive signal then clear unwanted sounds. It then repair the signal and finally transmit it in a high and good power level. This are required for the cables that extends to more than 100 meters. Another component is called the hub that has multiple data ports where the data packet is connected. Next is bridge that is use to connect many segments of network into the link data layer.
It is use in the OSI model and it does not copy all unlike the hub but it can know the MAC addresses that can be reaching through other ports. Next before the last type in this article is switches. It is a device that selects OSI data of layer 2 and forwards it in ports. Last is the router that functions as a carrier of packets to networks. It use data in headers then forwards it to know the good router for specific packet. If you will know basic knowledge on computer and be expert on it you can have much business reference.
Let us understand and learn more about networks. Network can be classified in categories that can better well define it. In this part of the article it was the category according to connection method. In another article let us see the classification according to scale. Let us see then the classification according to the connection method. Classification was base on software and hardware technology they use to connect with each other devices in the network. These are Ethernet, Wireless LAN and wired ones.
Let us see the first which is Ethernet. In Ethernet physical wiring that can be optical fiber cables or the copper type of cable to have connection to devices and to let other devices be ready like switches, hubs and bridges. The transmission tool of this kind of device is infrared signals or they can be radio waves. Next are the wired technologies that can be sub classified into twisted pair kind of wire and fiber optic cables. The twisted pair wire cable is the commonly used as a way of communication.
Last classification is the wireless technology that has four sub categories. First is the communication satellite which uses microwave radio for communication and sent back to the earth. They are commonly in the high buildings on the top, hills, towers and mountain at the peak. Next is terrestrial microwave, wireless LAN and Bluetooth. I will find more info and post in the next article.
Hi guys, being aware of numerous advance technology is not an easy task but fortunately during the next few minutes you will obtain crucial information one of the biggest upcoming revolutions the web 3.0 as well as great tips on how to be aware on the newest upcoming technology. But, what this web nonsense have to do with me? You might ask yourself. Well, you would actually be surprised. Just take a look around you’ll be able to find a computer, a tablet or a smartphone besides you or even all of them.
Just tell me what will you do if all your Facebook information gets lost, or if somebody steals your email password, normally people would go crazy. Current information is not just a bunch of bits and it’s actually becoming an extension of ourselves. So what is the web 3.0 the web 3.0? These are the upcoming web revolution, the Semantic web, a personalizable place with intelligence search and behavioral advertisements where contents are generated by machines rather than by humans.
Whereas, virtual items or information become more valuable than physical items. Does that mean the web is evolving? Exactly! Remember, many years ago when google was just launched, youtube was just coming out and msn messenger used to be the thing. Those were the first part of the first web generation or web 1.0. The web then began to evolve into much more dynamic web technologies, like RSS and xml started coming up content. Through this, we could understand that the line of internet technology is growing faster and faster than usual.
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We have written an article about the network classifications according to connection method. In this article we will see also the network classification according to scale as I have promised. As we love everything about information technology then we want to share what we have also learned that includes the basic things. As the basic is important to have a good foundation and be able to build a strong knowledge and ability.
The classification of network according to scale is Storage Area Network (SAN), Local Area Network (LAN), Virtual Private Network (VPN), Wide Area Network (WAN) and others. We will see about these four one by one. In these types of networks the use level of trust and access granted differ in each kind of network. The first kind is a Local Area Network (LAN) that is for a small area like one building only that includes school, home, office or one airport.
Next is Wide Area Network (WAN) that is lesser in data transfer compared to LAN. It is broader in coverage or access like in a city or region. This kind of network uses links and routers. The common example of this kind of network is the web. Next is the Storage Area Network (SAN) that should use storage devices like disk array in server. Last is the Virtual Private Network (VPN) that carries links by using virtual connections instead of physical wires. Now as the article is finish I am thinking of 外燴.
There are many terms in use in technology, computer or about internet topics that is well known and common to students of Information technology and workers in this area but it may seem difficult to those who do not have experience and background about technology and internet. This article is written to guide you basically and then you can browse more articles in this website to discover more about the world of internet. Then what is internetwork? It is defined as the connection of networks that are distinct by a technology commonly use that is the internetwork.
A router is an example of a device that can be used by segments of networks to be connected with each other. Internetwork in illustration is like the connection through internet of commercial, private, public, government or industrial networks. Those who participates in this internetwork uses three kinds to be able to collaborate and work with each other. They use in practice the Internet Protocol (IP). The three kinds of internetworks are Extranet, Intranet and Internet.
An extranet has a limited coverage like a one organization only. Intranet generally use tools like file transfer app and web browser that is controlled by one single administrative. They can restrict the access only to authorized persons that use it. Lastly the internet has a global coverage that can connect the government, public or academic networks. I hope this post has helped you.
Most persons I ask do not have an idea what are the copper cable categories. Simple reason is because they do not deal with technology or computers. They do have their gadgets but they do not care much about things like copper cable. But having knowledge about this will not give any harm. It may help you in the future so we will let you know some things about these kinds of cables. It may seem hard to understand but we will try to explain in simple terms not in technical way.
In fixing wiring or distributing wiring you should use horizontal wiring like UTP, STP and FTP kind of cable that are categorized as follows. First is Cat.3 that is use for frequencies that reaches up to 16MHz. It is commonly used in Ethernet with 10 Mbit/s that uses TVHV type of cable.
Next is Cat.5e that is being use for Ethernet networks with 100 Mbit/s. then here comes Cat.6 that overcomes more than twice the previous category and is good to be use in Ethernet networks with that reaches gigabit.
Cat.6a is twice more than the previous category, 6, that is very good for 10 gigabytes networks. Next is the Cat.7 and Cat.7a. These names are still informal pertaining to the 11801 class for networks that reaches up to 600 MHz and 1000 MHz specifically. This is easier to understand to some than this articles content.
In this article we will know the types of cables that they use for structured cabling networks. I think many have heard about it but do not understand or do not have idea what is it. Today then let us take some time to learn about them. In the early years structured cabling networks is designed for specific customers and they are not flexible to be use by any. It has some disadvantages and it makes it more complicated so it was redesigned by the efforts of TIA and EIA in 1991 they have made a commercial version.
It was known shortly as TIA/EIA-568 as the standard. It was not the two organizations mentioned above make the standards but there are three more major and some more organizations. By these standards the installation practices are organized and have specific standards that makes it easier for all to make connections without having to change and redesign for updates. We will tackle four of the types of cables. They are UTP (unshielded twisted pair), FTP (foiled twisted pair), STP (shielded twisted pair), STP (shielded twisted pair) and Optical Fibre.
Let us see about them one by one. The first one is the unshielded twisted pair (UTP). They are found mostly use in Ethernet networks and in the system of telephones. They usually come in four pairs. The STP cabling is protected by a metal shield in each pair of copper wires. Those who are involved in internet science know something about similar topics.
When installing structured cable networks that either uses copper or optical fibre, the owner and installer should agree on terms before installation. If all is settle then they can proceed for the installation. First is they should have a plan and then design its installation. When finish they will have to test and then put it in operation. When all this process is done then a structured cabling network is done. When the proprietary system changed to open systems it required the use of a structured cabling network.
This cabling network is a system that is used to connect devices that can permit sharing of information. The system will have the desired speed that can be relied on for efficiency if it is installed properly. It is not just a concern for the phones but also its features of image systems, data and voice. Wiring is very important for every network. The cables use should be easy to integrate or modify at any time. To reduce the costs of doing many changes and expending efforts and time the structured cabling systems have been made to solve the problem or concern.
They usually have lower costs at the beginning. These cabling networks are used in building communications and the campuses that have subsystems. It then can be said that many companies use this like the 華儲物流. Most of these cabling networks are installed in a place that is safe like temperature is good and stable.
Almost all people are using the internet and they are easily engrossed on surfing, playing or just updating their social status in social networking sites. The reason is they can do many things in the internet that’s why they are very fond of using it. It is very easy to just open their laptops or computers and connect to internet. If you enjoy much you do not have time to be concerned with other things especially the safety of your computer.
As we cannot see and it is not really obvious that there are many risks lurking around and invading the personal data and records in everything that is in the internet. Security in internet is not that given attention by users. They just rely on antivirus that is easily downloaded free in the internet. They do not understand that there are different levels of risks that are not covered by basic antivirus. When one connects to the internet using their phones are at risks of being attacked when they log in but it disappears or cut when they log off. This is online security risks.
When it comes to broadband connection it has more risk as it is connected 24 hours into the internet. So when you are planning to use you can consider this one risk for decision making. If you learn the facts here now you should be more active to be concerned with your computer security.