Typically, you will hear the term 'Autism Spectrum'. The term spectrum simply means that there are a number of different forms of autism. The type of autism all depends on how the person functions.
There is no 'cure' for autism however it can be managed by medications to counteract the effects and certain people may find that it will help them to function better, depending on the advice given from health professionals. However, medication does not make autism 'go away', it is a life-long condition.
You may notice that someone with autism may have a lack of eye-contact when talking face-to-face with another person.
Those with autism can find communication difficult as it can be a stressful experience for them, and this is because often they do not filter information as well, and so understanding can be more difficult.
Using simple phrases can be helpful - and will often take things literally so you need to be clear and understanding.