Open Systems Accounting Software (OSAS)

OSAS was first available on minicomputers in 1976 and was the first accounting software system to run on the IBM PC. Extensive set of modules, even more vertical applications. Runs on Windows, Linux, Mac, Unix. Free source code.

Accounts PayableBrochureDemo
Accounts ReceivableBrochureDemo
Bank ReconciliationBrochureDemo
BankingBrochure
Bill of Materials/KittingBrochureDemo
Contractors' Job CostBrochure
Direct DepositBrochure
Enhanced Payroll Tax ReportingBrochureEPTR Reports
Fixed AssetsBrochureDemo
General LedgerBrochureDemo
General Report WriterBrochure
Info AlertBrochureDemo
InventoryBrochureDemo
Job CostBrochureDemo
Landed Cost for Purchase OrderBrochureDemo
PayrollBrochureDemo
Purchase OrderBrochureDemo
Resource ManagerBrochureDemo
Sales OrderBrochureDemo