This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Aitchison talking typewriter. en University Research Page University Research Publication ISBN Australian Vice Chancellor's Committee Research Bulletin outlining initial research by Ronald Aitchison when he was developing talking typewriter for the blind students at Macquarie University Sydney Australia cczero Uploaded with