CIS 1200 Lecture Notes - Lecture 2: Central Processing Unit, Application Software, Software Categories

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1200
• Professor: John Saville

Document Summary

Is a device that performs 4 major functions: It gathers data (or allows users to input data) Data is representation of a fact or idea. Can be a number, word, picture or recording of sound. Example: a person"s name and phone number together is more useful then each of them on their. Information is data that has been organized or presented in a meaningful fashion own. In order to put data into information computers need a language they understand. If 8 bits are put together there are 256 possible combinations they can be in, number combinations allow for a code that can include many much used symbols. Bytes are the basic measurement for storage in a computer. Software is the set of computer programs that enables the hardware to perform different tasks. Application software is the set of programs you use on a computer to carry out tasks.