I applied for the position online after seeing an opening for an intern on the Apple website. I was contacted via email for an interview after about a month. The interviewer called at the time he said he would, was very punctual in fact. The interview consisted of a series of questions to gauge your experience in programming. Some questions involving heap, stack, how you use stack in your programs, when did you use it etc. He then moved on to O.S questions. He asked about some O.S-specific questions, which were, presumably, common topics for the course. But I haven't taken the course, so I failed to answer any of them. He was very friendly though, and encouraged me to guess and try to deduce what it is. Seems like they are looking for people who can think on their feet, and have had some experience outside the classroom. I think it'll be fine if you can try to get your way out of the questions by talking to him, and letting him know what you're thinking. I was too nervous and could hardly think straight. Tips: Study your basic data structures and algorithm. And memorize and really understand the crucial terminologies of computer science. Most importantly, learn to think your way out of problems like a true computer scientist! Hope this helped :)