screen reader
a computer program that allows a blind or visually impaired person to use the machine by interpreting the text that appears on the screen and transforming it into a voice that can be heard through the speaker.
anny: tomorrow i will go to miami and visit my best friend. i will write an email to her tonight. jim: how can you write an email if you're blind? anny: well, i have a screen reader installed on my computer, so i can listen to everything i type and every message coming from the system.