Computer replacement for me as well.
More accurately, notebook replacement, physical textbook replacement, and bookshelf replacement...in addition to desktop replacement.
I have about six 2,000+ page textbook pdfs open in iannotate, they flow smoothly, allow for notes, bookmarks, etc and tabbed switching between any of them.
I take notes with a stylus in class and got rid of my notebook last semester (goodnotes, notability ). I have all the slides downloaded directly on it, and take notes on the slides as if I printed them.
I use pages and the Logitech Ultrathin keyboard case for typing papers, emailing them to the professor, and printing them.
The nice part is all I take to class is my iPad and stylus. Not lugging around a backpack is very, very nice...and I still have all the textbooks, handouts (I take pics of them, and can fill them out with stylus as needed) with me. I even have flashcards for studying readily and instantly available...
One of the best purchases I've made. And I admit at first I considered it a "toy" as well, until I experimented and learned how to use it.
Also I'm coming from android tablets..
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