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    transistors

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    Sixty-one years ago last November‚ John Bardeen and Walter Brattain discovered the transistor at Bell Labs‚ in 1951. Before this‚ electronics used tubes‚ which happened to be extremely bulky‚ generated lots of heat‚ and had short life spans. The invention of smaller‚ more efficient‚ and more durable transistors brought a revolution in electronics. They became an important discovery that changed the world forever. The first ideas and experimentation with solid-state electronics began in 1874‚ but

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    useful for electricity‚ which is just a large collection of electronics. By creating a voltage differential through something as simple as a battery‚ we can make electrons move‚ which is the entire basis of electricity. Moving electrons power the circuits that allow radios‚ televisions‚ lights and every other electronic device to work. Transistor * A transistor is the most basic part of a computer that has allowed for the creation of computer chips and has fueled the computer age. The transistor

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    Ies Syllabus for Ece

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    IES CATEGORY IV - ELECTRONICS AND TELECOMMUNICATION ENGINEERING Group A Services/Posts (i) Indian Railway Service of Signal Engineers. (ii) Indian Railway Stores Service (Tele-communication/Electronics Engineering Posts). (iii) Indian Ordnance Factories Service (Engineering Branch) (Electronics Engineering Posts). (iv) Indian Naval Armament Service (Electronics Engineering Posts). (v) Central Power Engineering Service (Electronics & Telecommunication Engineering Posts) (vi) Assistant

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    block diagram of Automatic Temperature Detecting system the 5v dc supply is used for each IC for working because every digital logic circuit requires 5v power supply to work .The main blocks o f Automatic Temperature Detecting system are: 1.2. Block Diagram Description: 1.2.1. Temperature Sensor Module: This Temperature sensor is placed at the starting of the circuit‚ it detects the temperature and gives the same as the input to ADC. 1.2.2. Analog to Digital Convertor: 3 The Analog to Digital

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    Stealth Technology

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    whopping 1504 LED’s. so hardware and cost minimization achieved. Chapter 1 In this chapter we discuss about the general introduction of propeller display and why we need this project in the daily life. Chapter 2 In this chapter we study about the circuit diagram and the working principle (persistence of vision) of the propeller display. Chapter 3 In this chapter we discussed about the components and their details which are used in this project like microcontroller and its pin description‚ crystal

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    Nt1310 Unit 8 Assignment 1

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    Click within an area to view details about that circuit. 1. Microcontroller Board - The standard 4760 prototyping board pictured above is populated with an Atmega644 microcontroller clocked at 20 MHz. The serial transceiver and DB-9 connector have been soldered on for debugging purposes. They remain

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    Definition of computers

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    Running head: Computers COMPUTERS BY Eunice 10/20/13 Introduction An English writer named Richard Braithwaite first recorded the word “computer” in his book entitled “The young man’s gleanings”. Computers are now the most common electronic device among individuals and businesses in the world. Computers serve as a means of solving sophisticated problems easily and quickly. Now the forensic science department also use computers in their investigations. And banks also stopped counting money

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    Parts of the Computer

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    older IDE‚ or parallel ATA‚ drive technology‚ or solid state drives. SATA drives use slimmer cables‚ smaller power connections‚ do not get as hot and can transfer data faster than the older drives. Motherboard * The motherboard is an underlying circuit board that holds all the computer components together. Computer components‚ including the CPU‚ RAM‚ power supply and hard drive‚ plug into the motherboard. This

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    Bridges

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    Bridge Instruments Bridge Instruments Various types of bridge circuits are used in instrumentation. They can operate in either deflection mode or null principle. They give very high degree of accuracy. Bridges Instruments are used to measure • Resistance‚ Inductance‚ Capacitance • Purity of components • Impedances and admittances • Physical parameters Bridge Instruments Types of Bridges • • AC Bridge DC Bridge DC Current Bridge Instruments • Wheatstone bridge and

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    message i.e.‚ GPS Data to mobile using gsm module. The micro controller is interfaced with gas sensor and 555 timer and the motors are driven using L293D and the gsm module is also interfaced with micro controller using MAX232. The L293D driver circuit is used to drive the motors and max 232 is used as serial interface for GSM module. Power supply is provided by the 12v battery source. This project uses regulated 5V‚ 500mA power supply. 7805 three terminal voltage regulator is used for voltage

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