[BTM 200] - Midterm Exam Guide - Comprehensive Notes for the exam (44 pages long!)

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Document Summary

A computer is a data processing device that performs four major functions: it gathers data, or allows users to input data, it processes that data into information, it outputs data and information, it stores data and information. Data: representation of a fact, figure or idea. (number, word, sound) Hardware: any part of the computer you can physically touch. Software: a set of computer programs that enables hardware to perform certain tasks. There are 2 types: application software and system software. Application software: is the set of programs you use on a computer to help you carry out tasks such as writing a research paper. System software: the set of programs that allow your hardware and your application software to work together. Os: operating system = the programs that controls the way in which your computer system functions. Peripheral device: keyboard, monitor its connected to the computer. Mainframe: large expensive computer that supports hundreds of users simultaneously. (many programs slower pace. )