specific information processing tasks. There are two basic categories of information technology: hardware and software. Hardware consists of the physical devices associated with a computer system. Software is the set of instructions that the hardware executes to carry out specific tasks. Software, such as Microsoft Excel, and various hardware devices, such as a keyboard and a monitor, interact to create a spreadsheet or a graph. This appendix covers the basics of computer hardware and software including
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CHAPTER 1 INTRODUCTION TO INFORMATION TECHNOLOGY 1.1 Introduction Modern civilization has become so complicated and sophisticated that to survive one has to be competitive. This compels people to keep themselves informed of all types of happening in the society. And this in turn entails the need for an infrastructure of information. This is the point where information technology or IT becomes most important, as it is the infrastructure that allows us to get information accurately and in time. Before
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Service) as associated with all modern mobile phone devices and mobile telecommunication networks. The software for whole system is designed and implemented with KORAK Telecom Network in Erbil City, Nokia mobile phone device and with ordinary type of PC that running under Windows XP or compatible. The software for system is divided into two parts; Mobile to PC through serial port is a general commercial program that associated with the Nokia mobile devices, and second which access SMS file and control
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panels are always perpendicular to the solar energy radiated by the sun. This will tend to maximize the amount of power absorbed by the PV systems. It has been estimated that the use of a tracking system, over a fixed system, can increase the power output by 30%-60%. The increase is significant enough to make tracking a viable preposition despite of the enhancement in system cost. It is possible to align the tracking heliostat normal to sun using electronic control by a microcontroller.
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communicate with each other. The picture below depicts a motherboard with all the main components named. 2.2.2 Central Processing Unit (CPU) The CPU is the brain of the computer. It is responsible for all the calculations carried out in the entire computer system. Furthermore the speed of the CPU effects the overall performance of the computer system. The CPU is available in several architectures delivering various levels of performance. Few of them are • Embedded CPU architectures
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LabVIEW Getting Started with LabVIEW TM Getting Started with LabVIEW June 2010 373427G-01 Support Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 683 0100 Worldwide Offices Australia 1800 300 800, Austria 43 662 457990-0, Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599, Canada 800 433 3488, China 86 21 5050 9800, Czech Republic 420 224 235 774, Denmark 45 45 76
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Abstract Field Effect transistors (FET) are devices or circuits that alter or change the amplitude of a signal while maintaining the input waveform shape. The FET amplifiers run the Field Effect Transistors in saturation or active mode. The drain current is majorly determined by a small input voltage. All FET amplifiers do not have a β but instead have a trans conductance gm. In the circuit, the output voltage is primarily determined by the input gm. in the circuit. Introduction When working
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1. Forward biased LED-a semiconductor device that emits a narrow spectrum of light. 2. Incoherent Light- light in which the electric and magnetic fields of photons are completely random in orientation 3. Laser- acronym for light amplification by stimulated emission of radiation 4. Output pattern-the pattern of light produced in fiber optic that translate in the data 5. Output power – the amount of light produced by a fiber optic device 6. Modulation speed- the speed of which
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household devices and appliances we have in our home function in the way we know them too. One circuit type that most people today have in their homes and not know about are what’s Operational Amplifiers or op-amps.. You can find them in the amplifiers in our home theater systems or simple TVs or in our transportation like airplanes and automobiles. The op-amp common used in radios or communication devices amplifies the voltage that flows in the differential input out of the single output thousands
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Mainframes vs. PC's Essentially, mainframes and PC's do the same thing. They manipulate 0's and 1's. Their basic components are the same. Processors, I/O devices, memory and storage devices. The first computing systems were mainframes. They required large amounts of space, environmentally controlled rooms, and large power supplies. Mainframes are extremely expensive but a valuable tool to large businesses. Mainframes consist of multiple processors, large amounts of memory, storage, and
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