The typing program was initially released in late 1987 by The Software Toolworks and has been published regularly ever since. The first version written for MS-DOS was created by Norm Worthington, Walt
Publication: Memoirs of the American Mathematical Society Publication Year: 2019; Volume 261, Number 1262ISBNs: 978-1-4704-3685-8 (print); 978-1-4704-5416-6 (online) DOI: Published electronically: Nov