Monette G. Calamba CSIII June 22‚ 2011 1. History and generation of computer. 2. Definition of Mechanical Calculating Device. * First Generation (1941-1956) World War gave rise to numerous developments and started off the computer age. Electronic Numerical Integrator and Computer (ENIAC) was produced by a partnershp between University of Pennsylvania and the US government. It consisted of 18‚000 vacuum tubes and 7000 resistors. It was developed by John Presper Eckert and John W
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Page No 1. CERTIFICATE 1 2. INTRODUCTION 2 3. THEORY 3-4 4. EXPERIMENT 5-6 5. RESULTS 7 6. CONCLUSION. 7 7. ACKNOWLEDGEMENT 8 8. REFERENCE 9 INTRODUCTION A gate is a digital circuit that follows certain logical relationship between the input and output voltages. Therefore‚ they are generally known as logic gates — gates because they control the flow of information. The five common logic gates used are NOT‚ AND‚ OR‚ NAND
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Contents ← Introduction ← Basic gates ← Operation of the circuit ← Working of the circuit ← Circuit diagram ← Semiconductor configurations ← Applications of decoder ← Parts list ← Bibliography ( Introduction The decoder is the circuit which is used to decode the BCD count into its equivalent decimal readout. The IC used in this circuit to decode the BCD count into its equivalent decimal is the famous IC 7447. This IC is the member of TTL family which
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technology has shrunk these devices drastically. The CPUs found in today’s desktop computers and notebooks are packaged as small flat squares (approximately two inches by two inches) whose connecting pins plug into a socket mounted on the machine’s main circuit board (called the motherboard). In smartphones‚ mini-notebooks‚ and other Mobile Internet Devices (MID)‚ CPU’s are around half the size of a postage stamp. Due to their small size‚ these processors are called microprocessors. • CPU Basics A CPU
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Order this document by LM358/D LM358‚ LM258‚ LM2904‚ LM2904V Dual Low Power Operational Amplifiers Utilizing the circuit designs perfected for recently introduced Quad Operational Amplifiers‚ these dual operational amplifiers feature 1) low power drain‚ 2) a common mode input voltage range extending to ground/VEE‚ 3) single supply or split supply operation and 4) pinouts compatible with the popular MC1558 dual operational amplifier. The LM158 series is equivalent to one–half of an LM124. These
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practical exercises. It is recommended that this signal is used for most of the experiments‚ as you will find that it is difficult to synchronize more than one oscilloscope trace when the input comes from an external source. Then third is the sampling circuit is the signal at the ANALOG INPUT socket is sampled at a rate‚ and for duration‚ which depends on the applied sampling control signal. Then fourth is the second order low pass filter this is a filter having a 3.4 kHz bandwidth. Then lastly is the
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Sample Statement of Purpose for Computer Engineering I am an undergraduate student at Birla Institute of Technology & Science (B.I.T.S)‚ Pilani‚ India‚ majoring in Electrical & Electronics Engineering and Computer Science. Towards the end of my undergraduate studies‚ I feel that I have gained enough experience and motivation to pursue graduate studies in Computer Engineering with specialization in Digital VLSI Design & Computer Architecture. A research career in academia being my ultimate aim
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INTRODUCTION This document proves the high and low voltage cable integrity after installation or jointing work is completed and before connection or reconnection to the PGCB Network. Such testing and commissioning will be undertaken by people‚ who are both qualified and authorized‚ and the relevant test results will be duly entered into the relevant test report form (refer to CEOF6022 and CEOF6023). TOOLS AND EQUIPMENT Danger HV Test Signs 1000V DC Megger Insulating
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material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor ’s terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power‚ a transistor can amplify a signal. Today‚ some transistors are packaged individually‚ but many more are found embedded in integrated circuits. Inside a transistor: a BJT (Bipolar Junction Transistor) transistor
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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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