The course 'presumes' familiarity with basic computer programming. [=people who take the course should know basic computer programming]
After the earthquake several people were missing and 'presumed dead'. [=believed to be dead]
I 'presume' (that) the car was very expensive. = The car was very expensive, I 'presume'.
(..) - How long? Maybe a year. Don't ignore me, Severus. We both know Lord Voldemort has ordered the Malfoy boy to murder me. But should he fail, I should presume the Dark Lord will turn to you. You must be the one to kill me, Severus. It is the only way. Only then, (..)2011 Harry Potter and the Deathly Hallows: Part 2
(..) If you would, I would like you please, to lead Miss Parkinson and the rest of Slytherin house, from the hall. Exactly where is it I'll be leading 'em to, ma'am? The dungeons would do. I presume you have a reason for returning, Potter. What is it you need? Time, Professor. As much as you can get me. (..)2011 Harry Potter and the Deathly Hallows: Part 2