Point of Sale Software

4POS Retail is a well reviewed product suitable for a wide range of outlets from general stores to fast food. It offers both inventory and customer databases with a flexible and secure sales interface. Compatible with most POS hardware from receipt printers, barcode readers, touch screens to pole displays. From $49.00

Trial versions are available for both the single user 4POS Retail and the multi terminal 4POS SC

Rental Software

Winrental our entry level program provides all the features you need to run your rental store, a robust and proven solution. 4POSRENTAL incorporates enhanced features to provide the latest technology.
Web site anti intrusion software

4Webcheck provides single click verification of files in a local folder to those on a web site with a visual difference comparative.
Further details and free trial available here
Contract Bridge Software

XContractbridge is a random deal Contract Bridge simulation for Linux.
A trial version may be downloaded from here

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Source: http://id.berita.yahoo.com/teknologi/