Microsoft have recently been devoting a lot of attention to making their products more accessible. They really have made great strides in the past 12 months. This video webinar gives a great overview of how the new tools can be used in the classroom.
There are 2 other webinars in the series
This is an interesting article detailing some new technologies to support communication for students with ASD. http://mashable.com/2017/04/09/autism-innovations/
The Chrome browser has lots of supports for students with special needs. You access these via the chrome store . These extensions run as little plug-ins to offer text to speech, change of font, colour backgrounds etc. More information from http://www.controlaltachieve.com/2016/10/special-needs-extensions.html