Data transmission‚ digital transmission‚ or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires‚ optical fibres‚ wireless communication channels‚ and storage media. The data are represented as an electromagnetic signal‚ such as an electrical voltage‚ radiowave‚ microwave‚ or infrared signal. Data representation can be divided into two categories: Digital
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Analysis: “Better connected‚ farther apart” The author‚ Leonard Pitts Jr.‚ comes from the credible resource the Miami Herald. Pitts is a very well respected author‚ and happens to be a Pulitzer Prize winning author. Pitts specializes in commentary pieces and this piece‚ “Better connected‚ farther apart” also happens to be a commentary piece. I personally heard about this topic before I read this article‚ and I’m sure most other people have unless they live under a rock. It’s been all over the usual
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units of info that travels * Medium: means of interconnecting these devices‚ can transport the messages * Devices: devices on the network exchange messages Messages- a generic term that encompasses forms of communication enabled by the Internet. Devices- several devices work to see that the message is properly directed to the source to the destination device. Icons- symbols that graphically presents network devices and media. * Desktop Computer * Laptop * Server – a computer
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Points for Discussion 1. Analyze the social and economic conditions of the South in the aftermath of the war. Southern planters lost their slaves due to emancipation as well as all of the capital they held in Confederate bonds and currency. Many families had to make money without the help of males. Some even faced starvation and poverty. Great leaders during the war were also revered by communities. Life got worse for slaves who had no possessions. 2. Analyze the political‚ economic‚ and emotional
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does Jim think has happened to him as a result of the trick that Tom plays on him? Jim was sleeping when they snuck out‚ so Tom played a trick by placing his hat on the branch above his head; when Jim woke up‚ he told everyone that a witch flew him all over town and then placed his hat up there. 3. How does Huck know the drowned body that was found is not his Pap? Huck says that a man would float on his back‚ and not on his face‚ unlike that drowned person. 4. When Tom’s gang raids the “Spanish
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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 flow of data is unidirectional
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How Are We Connected To Africa? Intro: The purpose of this essay is to talk about the connections between the USA and Africa... Technology: Social/Economic In the United States everyone depends on technology and money to survive. In most countries it is the same way‚ but in others not so much. Take the Democratic Republic of Congo for instance; they don’t have all the computers or the money to do what we are able to do. They are forced to
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THE UNITED STATES CONSTITUTION DIRECTIONS: AS YOU READ THE U.S. CONSTITUTION COMPLETE THE FOLLOWING OUTLINE. ~.’ THE PREAMBLE: States the basic purposes of the government of the United States. 1. The purpose of our government can be summed up with six basic goals that it seeks to provide. List these six goals. i (a). _______________________________________________________________________________ (b). _______________________________________________________________________________ (c). ____
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switching and packet switching. a. Circuit Switching – One wire connects multiple destinations through communication nodes which creates a dedicated channel with full bandwidth available for communication. b. Packet Switching – Groupings of transmitted data are converted into smaller packets that are sent over a network. The transmission resources are allocated as needed and a connection exists only as long as the transmission is sent. 2. Packetization is the bundling of data being sent into
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mmTASK 1 a) Explain the following types of data communication networks and their applications * Public switched telephone network (PSTN) * Local area networks (LANs) * Metropolitan area networks (MANs) * Wide area networks (WANs) * Packet switched data network (PSDN)‚ * Integrated services digital network (ISDN) Public switched telephone network (PSTN) Public Switched telephone network (PSTN) is the global collection of interconnects originally designed to
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