Open Systems Accounting Software
|Developer(s)||Open Systems, Inc.|
November 1, 2010
|Operating system||Windows XP or later, Linux, Mac OS X|
Open Systems Accounting Software (OSAS) is a business accounting software package for small- to medium-sized businesses using the Microsoft Windows, Linux, and Mac OS X operating systems. It has been developed and sold since 1976 by Open Systems, Inc. of Shakopee, MN.