Present systems are inadequate for most practical use, and extremely demanding on computer hardware.
This is less demanding on computer hardware and memory, enabling the system to operate faster and making it cheaper to implement. Business perspective Automatic speech recognition is progressively becoming an important commercial technology, and has enormous potential as one of the most natural forms of communication with machines. Personal digital assistants are too small to incorporate keyboards, and their future development depends on an alternative data entry system. Medical reasons such as repetitive strain injury can prevent keyboard use. Some applications, for example military, medical and aeronautics, require the hands of the user to remain free for other purposes.