BTM 481 : desc200 - ch2.docx

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Computer: a data processing device that performs 4 major functions. 1) gathers data, or allows users to input data. Data: representation of a fact, figure, or idea (#, word, picture, recording), alone this stuff doesn"t mean much. Info: data that"s been organized or presented in a meaningful way. Binary language: what computers use it consists of only 2 digits (0 and 1). Everything a comp does is broken down into 0"s or 1"s. Each 0 or 1 is a binary digit/bit. Each letter, #, symbol on a comp is made of a unique combo of 8 bits. Bits and bytes also used for: when files or apps are made of a large # of bits and bytes, we measure the size with units larger than a byte (kilobyte, megabyte, gigabyte, terabyte, petabyte, How does a comp process bits and bytes. Hardware: any part of the comp you can physically touch.

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