Hodges * ACLs * Boot Loaders- a program that loads an operating system when a computer is turned on. * DAC - In electronics, a digital-to-analog converter (DAC, D/A, D2A or D-to-A) is a function that converts digital data (usually binary) into an analog signal (current, voltage, or electric charge). An analog-to-digital converter (ADC) performs the reverse function. * Grand Unified Bootloader (GRUB)- GNU GRUB (short for GNU GRand Unified Bootloader) is a boot loader package from the
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a circuit where a waveform conversion is present while the output voltage is proportional to its integral voltage input of the amplifier. 6.2 Theoretical Discussion The integrator circuit is mostly used in analog computers, analog-to-digital converters and wave-shaping circuits. A common wave-shaping use is as a charge amplifier and they are usually constructed using an operational amplifier though they can use high gain discrete transistor configurations. The integrator basically works like
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convert these signals. Analog to Digital Conversion In order for this conversion to take place, an analog-to-digital converter (ADC) is necessary. This component is essential because it is responsible for receiving the analog signal as input and sending a digital signal as output. The ADC receives an analog signal such as sound, voice, or voltage and transforms that signal into a binary output. This output is the digital signal that has a state of either on, which is represented by 1 or an off state
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This sample chapter is for review purposes only. Copyright © The Goodheart-Willcox Co., Inc. All rights reserved. 138 Programmable Logic Controllers: Hardware and Programming Chapter 7 7.1 Introduction The majority of PLC manufacturers use the ladder logic diagram programming language to program their programmable logic controllers (PLCs). Some manufacturers prefer using logic gate circuits or Boolean expressions to program their PLCs. Therefore, it is beneficial to know how to convert
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degradation and noise. “The binary signal is made up of two symbols namely binary digits or bits 1 and 0. If there is no influence of noise and distortion during transmission, the binary information will be the same. The change in the signal is being measure at the receiver. Encoding is needless if the information to be transferred has already been converted in binary form just like in data communications. In contrary, voice communication through telephone is not in binary form. These are analog signals
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TABLE OF CONTENTS PAGE NO. CHAPTER 1- INTRODUCTION 1.1 INTRODUCTION 6 1.2 WHAT IS OFDMA? 9 CHAPTER 2 - SUBCARRIER ALLOCATION SCHEMES 2.1 STATIC SUBCARRIER ALLOCATION 12 2.2 DYNAMIC SUBCARRIER ALLOCATION 14 2.2.1 THE PROPOSED DSA SCHEME 15 CHAPTER 3- FLOW
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SCIENTIFIC PUBLICATIONS OF THE STATE UNIVERSITY OF NOVI PAZAR S ER . A: A PPL . M ATH . I NFORM . AND M ECH . vol. 1, 1 (2009), 11-20 Vernier’s Delay Line Time–to–Digital Converter G. S. Jovanovi´ , M. K. Stojˇ ev c c Abstract: This paper describes the architecture and performance of a high-resolution time–to– digital converter (TDC) based on a Vernier delay line. The TDC is used as a basic building block for time interval measurement in an ultrasonic liquid flowmeter. Operation of the TDC with 10ps
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example a year is no exactly 12 equal parts the human use to add a day every four years to adjust the calendar and make everything simple. Digital technology is an example of this human behavior the humans use a special two-digit number system, called binary system to represent natural phenomena such as temperatures, sounds or other phenomena. The purpose to digitizing all this phenomena is to reduce an
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with quantities that vary continuously. It generally deals with physical variables such as voltage, pressure, temperature, speed, etc. 2. Digital Computers On the other hand a digital computer operates on digital data such as numbers. It uses binary number system in which there are only two digits 0 and 1. Each one is called a bit. The digital computer is designed using digital circuits in which there are two levels for an input or output signal. These two levels are known as logic 0 and logic
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Review Questions for Test-2 (Partial List) Part-A End-of-Chapter-4 Questions (match questions, overlook number mismatch) 1. How does analog data differ from digital data? Computers produce digital data that are binary, either on or off. In contrast, telephones produce analog data whose electrical signals are shaped like the sound waves they transfer. Analog data are signals that vary continuously within a range of values (e.g., temperature is analog). 1. Clearly explain the differences
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