one device at a time. A bus is the central cable‚ the main wire that connects all devices on a LAN (Local Area Network). Bus topology is known as the simplest network topology‚ and also known as a linear bus (Oliviero and Woodward‚ 2009‚ p. 104). Bus topology is the choice in most LAN topologies. A bus topology is a type of network setup where each computer and network device is connected to a single cable or backbone that typically uses coaxial cabling. The signal travels both ways from one
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As per Wikipedia‚ "natural monopoly" is defined as "an industry is said to be a natural monopoly if one firm can produce a desired output at a lower social cost than two or more firmsthat is‚ there are economies of scale in social costs. Unlike in the ordinary understanding of a monopoly‚ a natural monopoly situation does not mean that only one firm is providing a particular kind of good or service. Rather it is the assertion about an industry‚ that multiple firms providing a good or service is
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Task 1 Internal system unit components: Processor The processor is the brain of the computer. It handles all instructions in programs loaded into RAM and gets information from the HDD or SSD. It handles data in binary. Motherboard This is a circuit board that connects the CPU with the RAM and the hard drive BIOS It stands for basic input/output system and it is is the program a computer’s processor uses to get the computer system started after it is switched on. It also controls data flow between
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network. One such element of a logical network includes assigned IP addresses to devices such as routers‚ switches‚ servers‚ workstations and other devices utilized on a network. Logical design usually do not show the actual interfaces and physical cables in the diagrams; thus the term "logical". A logical network design is the design of a network as expressed in terms of its functionality and inter-relationship with different functions within the network. A logical network design document would
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Introduction Ubiquitous and cost-effective public and private broadband networks are as important today as telecom networks were in the previous decade. Absence of inexpensive non dial-up option is a major stumbling block for a country’s overall growth. Recognizing the potential of ubiquitous broadband service in the growth of country’s GDP and enhancement in the quality of life through societal applications including tele-education‚ tele-medicine‚ e-governance‚ entertainment‚ as well as employment
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DCN VIVA QUESTIONS 1. What do you mean by data communication? Ans: It is the exchange of data between two devices via some form of transmission medium such as wire cable. The communicating system must be part of a communication system made up of a combination of hardware and software. The effectiveness of a data communication system depends on three fundamental characteristics: delivery‚ accuracy and timeliness. 2. What is simplex? Ans: It is the mode of communication between two devices in which
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1. Describe the difference between an analog signal and a digital signal? Analog signal has a smooth consistency over a vary of time. An example of analog signal is voice. Digital signal is smooth‚ but after a period of time‚ it will change its consistency. An example of digital signal is text. 2. What is the function of a dial up modem? A dial up modem‚ modulates the digital data received from a computer‚ and transfers it into an analog signal‚ which then transmits down a telephone line. The
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communication for many reasons‚ some listed below. *Capacity Optical fibres can carry signals with much less energy than copper cable and with a much higher bandwidth. This means that fibres can carry more channels of information over longer distances with fewer repeaters required. *Size and weight Optical fibre cables are much lighter and thinner than copper cables with the same bandwidth. This means that much less space is requires in underground cabling ducts. Also they are easier for installation
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1. Describe a local land line phone system on the following Landline Telephone Components: a. Local Loop: A local loop is a network or circuit that connects a group of telephone customers to the edge of the service provider’s network‚ no larger than 3 miles. b. Central Office: A central office is responsible for providing certain services to the local loop‚ such as‚ call routing‚ signaling‚ digit collecting. c. Local Exchanges: A system of devices or switches that direct local calls. Commonly
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COMPUTER Q1- a ________ is approximately a million bytes. a) Gigabytes b) Kilobytes c) Megabyte d) Terabyte e) None of these Q2- The programs which are as permanent as hardware and stored in ROM is known as- a) Hardware b) Software c) Firmware d) ROMware e) None of these Q3- Memory is made up of a) Set of wires b) Set of circuits c) Large number of cells d) Set of optical fiber e) All of these Q4- Primary memory stores a) Data
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