Windows CE
The Windows CE operating system for wireless mobile computing and barcode scanning is an extremely stable platform.
With embedded functionality including Microsoft Remote Desktop, terminal emulation client, web browser, and wordpad for .csv collection - you can directly remote into your database over Wifi connection and scan & input data directly into cloud. The .net compact framework also enables development of "home-grown" applications for direct data-injection to your information server. The famously popular MC9090-G, MC9190-G, MC9200 series scanguns all carry Windows CE as an available OS option to choose from.