Dragon Naturally Speaking 10 Standard Speech Recognition Software is aSEALED DVD for PC that enables users to type using their voice. The software is designed by Nuance and is compatible with various Microsoft Windows operating systems, including Vista 64-bit, XP, 2000, Server 2003, and Vista. It requires a minimum of 1 GB RAM and 2.5 GHz processor speed, and 2 GB hard drive space. The license category is Standard, and it is for one device use only.