Copper wires are found in most electrical or electronic-related devices. Network fundamentals. IB Computer Science Topic 3.1.12. Microwave frequencies will have wavelengths in centimeters. Typically network cabling will be copper wiring or a mixture of this and fibre-optic cable. Microwave band is divided into UHF, SHF, EHF etc. One of the inherent disadvantages to copper Ethernet cables is that they experience signal loss over long distances. These are highly compatible thus is widely used with electrical equipments. Busbar Trunking System is the is a system of distributing electric power using copper or aluminium busbar with suitable enclosures and good amount of protection to prevent the cables from getting damaged due to foreign bodies.. Busbars are now becoming irreplaceable simply because of the convenience and safety factor. Copper wire cables are thicker. What are the advantages and disadvantages of fiber optic? Advantages and disadvantages of Fiber optic cable A fiber optic cable is made by drawing glass or special type of plastic, which can transmit light from one end of the fiber to another end. While fiber is thinner and lighter than copper cable, it is also more delicate, making it more susceptible to physical damage from construction mishaps, wildlife, radiation, or chemicals. Monday, 3 November 2014. Advantages. The term usually refers to digital communications (i.e. Advantages. So, more fibers can be bundled into specified diameter. Cost Is Higher Than Copper Cable: despite the fact that fiber optic installation costs are dropping by as much as 60% a year, installing fiber optic cabling is still relatively higher than copper cables. disadvantages of copper mining ad diffusion ch. 3.1.1 Identify different types of networks. Because it is thinner, it can fit into smaller duct spaces. Here are the advantages and disadvantages of optical fiber cable. It is also sensitive to bending, so maneuvering and laying fiber cabling is a challenge. Copper Cable. The objective to support 100 m laser optimized multimode fiber (OM3) was met by using a parallel ribbon cable with 850 nm VCSEL sources (40GBASE-SR4 and 100GBASE-SR10). Computer Science Secondary School What is coaxial cable write its advantages and disadvantages 1 See answer shanvisri is waiting for your help. It is also referred to as Wired or Bounded transmission media. This is because the speed of light is greater … advantages. Its merits are that it is easy to manage and appropriate for peer-to-peer communications. Video: Packet Switching. While there are significant advantages to fiber, it is far from a perfect replacement for traditional technology. 3 Answers. A small group of computers connected, usually over a very small area - a single room or a building. Computer Network Computer Engineering MCA. A disadvantage is that it is not reliable, expandable, or flexible, because the center node performs all of the switching functions—once it goes wrong, the network is in trouble. Easy to install and maintain. Both copper and what is essentially glass, or fiber optics, have their advantages and unique characteristics. - Advantage and disadvantages of coaxial cables. and . Though optical fiber has speed and bandwidth advantages over copper cable, it also contains some drawbacks. The 10 and 40 km 100G objectives were addressed with four wavelengths (around 1310 nm) of 25G optics … Copper cable distances are achieved using either 4 or 10 differential lanes using SFF-8642 and SFF-8436 connectors. STP affords greater protection from all types of external interference, but is more expensive and difficult to install than UTP. Copper has been used in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s. A hub is used to link computers and peripherals together in a cabled network that uses a star network topology. This is why copper wires are used in mains cables in houses and underground (although overhead cables tend be aluminium because it is less dense). Copper wire cables do not carry high capacity and also it is thicker than fiber optic. This page covers advantages and disadvantages of Microwave Communicaion. Thick copper strip is used for lightning conductors on tall buildings like church spires. What are two advantages and disadvantages for data transmission over a) Copper Cable and b)Fibre Optic Cable? - ThinNet coaxial cable. The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor.. Copper is the electrical conductor in many categories of electrical wiring. LAN: Local Area Network. Cables are a system of four pairs of copper wires bound in a tube casing and used to network computer devices together. Fiber optic cables transmit data at much higher speed than copper wires. Quizlet flashcards, activities and games help you improve your grades. IB COMPUTER SCIENCE NOTES PROGRAM HARD. Twisted-pair cables or optical-fiber cables are used as the transmission lines. advantages and disadvantages of using cat5 cables (category 5 cable) ethernet cable. It increases tensile strength of the cable and reduces weight. It can be bent around tighter corners. Usually done with copper cables. If there is any problem in ethernet, it is difficult to troubleshoot what cable or node in the network causing an actual problem. Advantages of Optical Fiber Greater bandwidth & faster speed—Optical fiber cable supports extremely high bandwidth and speed. Fiber optic cables are finding increasing usage due to a number of advantages over the traditional copper wires. The choice between fiber and copper tends to be dependent on the application. - ThickNet coaxial cable. It possesses higher electrical conductivity. Copper wire offers a variety of advantages, making it one of the most widely used electrical wires in the world. Examples of such channels are copper wires, optical fibers, wireless communication channels, and storage media. Fiber optic cables can carry higher capacity and thinner. Advantages of Coaxial Cables. Home / Computer System Question / What is fiber optic cable technology ? Copper is three times as dense as aluminium. MAN: Metropolitan Area Network. The videos are relatively short - around 2 minutes - making them great revision / review tools. 3.1 Networks. Video: Undersea Cables. These are the advantages of coaxial cables − Excellent noise immunity. Answer Save. Copper cables are less expensive and has low maintenance cost. These four excellent videos from Computer Science tutor cover the four main types of network topology. A disadvantage is that it costs a lot retrive and separate the copper from the waste it is used in to recycle. Disadvantages of lead sheathed cables. Networks - GCSE Computer Science study guide by stdm25 includes 85 questions covering vocabulary, terms and more. 8 years ago. Can be used for both analog and digital signals. You May Like to Read: 14 Difference Between TCP and UDP Protocol; 12 Advantages and Disadvantages of OSI model Layered Architecture; This is all about the advantages and disadvantages of Ethernet. TOPIC 3 - NETWORKS Topic 3 - Networks . advantages and disadvantages of unshielded twisted-pair cable (UTP). However, where size rather than weight is important, copper is the best choice. Advantages and disadvantages of Guided medium:The Guided medium can be broadly classified into Twisted pair, Coaxial cable and Optic fiber.Twisted PairA set of copper wires coupled and twisted with each other is twisted pair cables. Star Topology video Signals being transmitted are directed and confined in a narrow pathway by using physical links. Because, its diameter is smaller than copper wires. Optical fiber cables are durable hence last for longer durations when installed. Copper Cable – 1Mbps (Legacy – probably won’t be in the exam) Invented in 1844 to carry Morse code transmission. Optical fiber cables use light signals to transmit data signals instead of traditional electrical signals. 8 years ago. IB Computer Science Topic 3.1.11. disadvantages. Disadvantages of mining copper utahOct the advantages are the resources eg copper lead coal gravels that we all use in our daily lives mining also gives jobs and money to the communities the disadvantage can be from momentary scaring of the landscape mining can be dangerous for the workers and has the potential for Outline the . Copper is used in cables due to its good electrical conductivity so its time and cost consuming to get the copper from the wire itself. Each of the 8 individual copper wires in the UTP cable is covered by insulating material. It is extensively available. 1 to 2 Gbps for 1 Km cable. Inexpensive as compared to fibre optic cables. Fiber Optics. Lead is both a heavy and a soft metal. Because copper cable installation does not need extra care like fiber cables. The STP cables have the individual pairs of wires wrapped in foil, and then the group of wires wrapped again for double protection, whereas UTP cables have each pair twisted together and then encased inside the tubing without any other protection. Frequencies in the range from 1GHz to 30GHz is known as Microwaves. Skin effect is result of high frequency signals propagating along outer surface of the conductor. Relevance. However, with the dramatic reduction of cost of optical deployment, the future-proof fiber optic cable shows more advantages over copper and has a better prospect in the future market. Furthermore, there are also environmental concerns of using lead in underground cabling systems. Electrical current is passed along a single pair of wires. Favourite answer. Also, copper can be easily jointed. How it works. However, there are a few flipsides in its usage too. UTP cable Unshielded twisted-pair cable (UTP) is a four-pair wire medium used in a variety of networks. It mentions Microwave advantages and Microwave disadvantages. Advantages of Fiber Optics Cables over Copper Wires. Digital bit stream), but may include analog data transmission as well. The amount of cabling needed depends on the network topology (the way computers and peripherals are physically connected together). Just another dude. Besides the advantages of lead sheathed cables, there are also some disadvantages. Signals can travel longer distances at higher speeds, e.g. Advantages and Disadvantages of Microwave Communication. Each video does a great job of showing the physical topology and discussing the advantages and disadvantages of each. The heavy weight of this metal is regarded as a disadvantage since it increases labour intensity, making it more costly to install. Later used as the transmission medium for telephone calls and therefore widely adopted. The effective limit of a copper run is about 300 feet; distances longer than that require either signal boosters or a series of equipment closets with backbone cabling. The copper cable has several advantages over the aluminium one. Disadvantages of Coaxial Cables In some cases an advertised 'advantage' may be moot or even … Add your answer and earn points. What are the advantages and disadvantages of the three major types of guided media (twisted pair, coaxial copper, and optical fiber)?. Simple, cheap and quick to install; Disadvantages Copper has already existed in many places and it is cheap in network devices connection. 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