A computer with a Pentium II processor at minimum, a Pentium III is better. A little money. Most voice recognition systems have to get used to the user's speech patterns. Paying a visit to a voice portal is another way to experiment with voice recognition. Voice portals use voice-activated software to connect the Web and the telephone.
Voice portals are still in their infancy.
Drawbacks include easily misinterpreted commands, time-consuming option menus, and brief ad recordings.