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presentation computer fundamentals network comp improve your reading slow reader slow questions visualize predict strategies extensive intensive reading types of reading how to learn scanning skimming slideshare communication skills skills reading skills npn transistors projects mini projects electronics electrical security alarm technology learn computer software hardware application softwares system softwares keyboard mouse user experience output devices input devices computers basics slides basic types of topology types of topologies networking lab work defination pans wans lan language network topology ring topology bus topology basic computer silent