Welcome to computer science! From writing reports to creating special effects in movies to esplor- ing the final frontier of space,computers play vital roles in our lives and world.You're about to start the exploration adn exciting world of computer sciencean arena that offers many challenging and excitingcareer- s. In this introductory text,you'll get a taste of each of the many dis-ciplines within computer science.Data representation of text,audio,images,and numbers;computer hardware.including operating systems and programming languages;data organiztion topics such as SQL da-tabase models-they're all here.Progressing from the bits and bytes level to the higher levels of abstraction and otherareas in the computer field And to ensure that the oveuview ia as clear as possible,the author offer-s guidance along the way,thuough: .An emphasis on concepts rather than om mathematical and technical models and technical details. .Numerous graphs,chats and illustrations that enhance and support wh-at
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