SAS (Statistical Analysis System) software is comprehensive software which deals with many
problems related to Statistical analysis, Spreadsheet, Data Creation, Graphics, etc. It is a layered,
multivendor architecture. Regardless of the difference in hardware, operating systems, etc., the
SAS applications look the same and produce the same results. The three components of the SAS
System are Host, Portable Applications and Data. Host provides all the required interfaces
between the SAS system and the operating environment. Functionalities and applications reside
in Portable component and the user supplies the Data. We, in this course will be dealing with the
software related to perform statistical analysis of data.