BIPOLAR JUNCTION TRANSISTOR Introduction: The bipolar junction transistor was invented in the United States by John Bardeen, Walter Brattain and William Shockley in 1949. A bipolar junction transistor (BJT) is a type of transistor (device) that has three terminals connected to three doped semiconductor regions. The emitter region, the base region and the collector region. There are two types of bipolar junction transistor: NPN transistor and PNP transistor. In an NPN type, a thin and lightly
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Week 2 (2-8Mar) | Read: * Chapter 5 – Hardware: Input & Output – all Sections in Using Information Technology textbook. * Chapter 6, Sections 6.2, 6.3, 6.4 - Communications, Networks and Safeguards in Using Information Technology textbook. * OLI – Unit 2, Understanding the Computer System UnitDo: 1. Participate in the Week 2 Discussion Conference 2. OLI – Unit 2, Quizzes for 2 Modules and the final Unit quiz | 1. Discussion Conference Participation 2. OLI Unit 2 – Module 2
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* 3. 2131DC Power Supplies 5. VoltageDivider. Its function is to provide different dc-voltages needed by different electronic circuits. It consists of a number of resistors connected in series across the output terminals of the voltage regulator. Obviously, it eliminates the necessity of providing separate dc power supplies to different electronic circuits working on different dc levels. Comments. Strictly speaking, all that is really required for conversion from ac to dc is a trans- former and a
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to understand the steps at hand, as stated before. Parts of a flow chart include the variables, input and output. The variables being storage locations in memory for data, the output being the data is generated and displayed, and input being the data that a program receives. Computer programs typically follow these three steps: Input is received, some process is performed on the input, and the output is produced. Pseudo-code is composed of sentences, clauses and words. It follows a structured pattern
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example printing equipments, mouse and keyboard and also other tools like files. The UNIX system also manages directories and procedures like files. There's only one root directory inside the UNIX operating system hierarchical tree. UNIX utilizes devices and applications via the command line in contrast to utilizing a single monolithic application which includes all the same functionality. The kernel offers services to begin and stop applications, deals with the file system that saves and arranges
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Summary of Theory We will be combining a common-emitter (CE) amplifier with a common collector (CC) amplifier. This will allow us to have a high voltage gain with moderate input resistance and current gain with low output resistance. Together, the amplifiers will make a speaker with a low resistance load emit noises of different pitches at different frequencies. As with all amplifiers, there will be a small amount of power from the supply that will be wasted. The amplifier we will be building is
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International Journal of Science, Engineering and Technology Research (IJSETR), Volume 3, Issue 7, July 2014 DESIGN AND IMPLEMENTATION OF REMOTE OPERATED SPY ROBOT CONTROL SYSTEM Wai Mo Mo Khaing1, Kyaw Thiha2 Department of Mechatronic Engineering, Mandalay Technological University Mandalay, Myanmar Abstract- Spy robots are remotely controlled robots, equipped with a camera, transmitting video data to the intervention troop. They are made to small and compact enough to easily transport. In this
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centers in the network. T = Finite observation period. Ai = Number of arrivals at queue i (device i) during observation period. Bi = Total busy period of queue i during observation period. Ci = Number of service completions at queue i during observation period. Di = Total service demand by a customer at device i. Qi = Queue length at device i (including the job in service) Ri = Response time per visit to the ith device. Si = Average service time per customer visit to queue i during observation period. Ui
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States, performed experiments and observed that when two gold point contacts were applied to a crystal of germanium, a signal was produced with the output power greater than the inpuT THEY INVENTED THE TRANSISTORS…... ROBERT NOYSE,JACK KIBLY. THEY TWO INVENTED THE INTGRATED CIRCUITS….. The idea of integrating electronic circuits into a single device was born, when the German physicist and engineer Werner Jacobi (de) developed and patented the first known integrated transistor amplifier in 1949
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There was only one electronic computer in World War Two, which was called ENIAC, and was a building full of vacuum tubes. It was built to calculate artillery projectile paths, and had to have the program wired in. It had no memory, and displayed the output with glowing lights. World War 2 computers were huge that have to take of a whole room, lag a lot, and much more complicated to use. Today’s computers are a lot faster, smarter, better technologies and more compact, and easy to use. The way people
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