Word prediction when typing has become common place thanks to the feature built into mobile phones. However long before that word prediction was available for individuals who have difficulty typing efficiently on standard computers.
Word prediction can be useful for people who type slowly due to physical difficulties. Particularly for those who use a keyguard, large keyboard, or Windows’ free Slow Keys feature, or for those who type with one hand.
It is also useful for individuals who type slowly due to inefficiency in finding keys on the keyboard, and for people with dyslexia who make have difficulties with spelling.
Windows Word Prediction
This is a list of software that supports prediction on Microsoft Windows PCs: