The history of telecommunication began with the use of smoke signals and drums in Africa‚ the Americas and parts of Asia. In the 1790s‚ the first fixed semaphore systems emerged in Europe; however it was not until the 1830s that electrical telecommunicationsystems started to appear. This article details the history of telecommunication and the individuals who helped make telecommunication systems what they are today. The history of telecommunication is an important part of the larger history of communication
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my church mainly as a youth leader for students my age. However‚ recently for the past year and a half I transitioned into teaching the younger level about the Vietnamese language and bible study and incorporating scout skills such as knot tying‚ semaphore‚ and simple survival skills. For my lesson
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JUNE 2012 PART A QUESTION 6 Based on Figure 1 below‚ describe the responsibilities of the resource manager. (5M) The general form of a resource manager Figure 1 * As an Internal resource name is an internal name for the resource used by the operating system code. * As total unit are a number of resource units configured into the system. * Available unit is a number of units currently available. * List of available units is a set of available units of this resource type that
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18th century‚ optical telegraph which were based on visible transmission encoded by different positions of pivoted arms located on high towers were invented by Claude Chappe in France and George Murray in England which is the semaphore. This system was visual and used semaphore‚ a flag-based alphabet‚ and depended on a line of sight for communication. On the other hand‚ this system could not work at night. After the approaching of telegraph‚ messages travel over wires practically at incredible speed
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order to use abbreviation and so forth we must first understand how the word sound and use. Thumbspeaks: Is Texting Here to Stay? According to Menand‚ texting is a giant leap backward in the science of communication because it more efficient than semaphore
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1.What is the purpose of the Runtime class? Latest answer: The java runtime system can be accessed by the Runtime class. The runtime information – memory availability‚ invoking the garbage collector is possible by using Runtime class............ Read answer 2.What is the difference between a static and a non-static inner class? Latest answer: Like static methods and static members are defined in a class‚ a class can also be static. To specify the static class‚ prefix the keyword ‘static’ before
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AT A GLANCE: Police Officer William L. Potts of Detroit‚ Michigan‚ decided to do something about the problem caused by the ever increasing number of automobiles on the streets. What he had in mind was figuring out a way to adapt railroad signals for street use. Potts used red‚ amber‚ and green railroad lights and about thirty-seven dollars worth of wire and electrical controls to make the world’s first 4-way three color traffic light. It was installed in 1920 on the corner of Woodward and Michigan
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HISTORY OF INFORMATION TECHNOLOGY The term "information technology" evolved in the 1970s. Its basic concept‚ however‚ can be traced to the World War II alliance of the military and industry in the development of electronics‚ computers‚ and information theory. After the 1940s‚ the military remained the major source of research and development funding for the expansion of automation to replace manpower with machine power. Since the 1950s‚ four generations of computers have evolved. Each generation
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of a man. Life quality of a man is assessed according to the amount of information he get and means of approaching information. In earlier time telecommunication was done slowly by mean of simple methods such as the use of smoke signals‚ drums‚ semaphore‚ flags or heliograph‚ and usually could transfer a bit of information. For example‚ the use of smoke by indian can be understood as "the enemy has been sighted". For a longer distance and more detail massage‚ pegeon post was used. Since the electronics
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BACHELOR IN COMPUTER APPLCATIONS Term-End Examination June‚ 2007 CS – 63: INTRODUCTION TO SYSTEM SOFTWARE Time: 2 hours Maximum Marks: 60 Note: Question number 1 is compulsory. Answer any three questions from the rest. 1. (a) Explain the syntax analysis phase of a compiler design. Write the CFG for an arithmetic expression and generate a parse tree for the expression a + b * c / d – e * f (8) (b) Consider the following set of processes arrived at the sametime: (8) Process CPU Time P1 5
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