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Chapter 02 - HardwareDesigned to MeettheNeed...

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Hardware Designed  to  Meet the Need 
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Succeeding with Technology, Third Edition Learning Objectives Understand how bits and bytes are used to  represent information of value to people Identify the functions of the components of a  CPU, the relationship between the CPU and  memory, and factors that contribute to  processing speed Identify different types of memory and  storage media, and understand the unique  properties of each 2
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Succeeding with Technology, Third Edition Learning Objectives Identify different types of input and output  devices and how they are used to meet a  variety of personal and professional needs Understand the decision-making process  involved in purchasing a computer system 3
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Succeeding with Technology, Third Edition Representing Characters and Values with Bytes Bits Typically organized into groups of eight called  bytes American Standard Code for Information  Interchange (ASCII) Code representing keyboard text characters Binary number system Uses only two values, 0 and 1 Used by computers and digital devices to  represent and process data 4
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Succeeding with Technology, Third Edition Representing Characters and Values with Bytes 5
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Succeeding with Technology, Third Edition Bits, Bytes, and People Digital convergence Merging multiple digital services into one device At home Single device can be used for audio and video, computing,  and information access At work Used to combine voice, video, text communications and  information on a single network 6
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Succeeding with Technology, Third Edition Integrated Circuits and  Processing The ability to digitize information is at the  heart of the digital revolution Information is useless without the ability to  process it into useful forms The quality of digital electronic devices is  typically a reflection of the speed of its  processor The faster the processor, the faster and more  robust the service 7
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Succeeding with Technology, Third Edition Integrated Circuits and  Processing 8
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Succeeding with Technology, Third Edition Integrated Circuits Transistor Composed of semiconducting material that  opens or closes a circuit   Integrated circuits Used to store and process bits and bytes in  today’s computers Also called  chips 9
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Succeeding with Technology, Third Edition Integrated Circuits Central processing unit Group of integrated circuits that perform  processing   Microprocessor CPU circuits packed onto a smaller module Motherboard Primary circuit board of a computing device 10
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Succeeding with Technology, Third Edition Integrated Circuits 11
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Succeeding with Technology, Third Edition
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