CIS 1000 Chapter 2: CIS Chapter 2 Notes
26 Jan 2012
School
Department
Course
Professor
Document Summary
A computer is a data processing device that performs four major functions: gathers data, or allows users to input data, processes data into information, outputs data and information, stores data and information. Data is a representation of a fact, a figure, or an idea. Can be a number, a word, a picture or even a recording of sound. Information is data that has been organized or presented in a meaningful fashion (data that is useful) Collect a bunch of data and put it together into useful information. This language consists of just two digits: 0 and 1. Each 0 and 1 is a binary digit, or bit. Eight binary digits combine to make one byte. Also used to represent the data and information that it inputs and outputs. Amounts of bytes include kilobytes, megabytes, and gigabytes. y kilobyte= 1000 bytes y megabyte= 1 million bytes y gigabyte= 1 billion bytes y terabyte= 1 trillion bytes.
