I interviewed a fresh candidate at my work, today. He had done B.E (IT). His areas of interest had "Operating System" in it. I asked him a simple question - "What are the functions of an operating system"? He answered "Scheduling". I asked "What else?". He was spell bound. He couldn't think of anything else. I was astonished. A guy who has done his Bachelors in IT with a score of 83% couldn't answer what the functions of an operating system are. I then started probing more.
Me: What is the OS you used at college?
Me: What do you do with it?
Him: I write C programs. I execute some sytem commands in the "command prompt".
Me: How are the C programs stored?
Him: They are stored as "files".
Me: Doesn't the OS manage these files - storing/retrieving etc.,?
Me: What do you call these devices as - monitor, keyboard, mouse, joy stick, & printer?
Me: Hardware is too generic. What do you call these devices as?
Him: Access devices
Me: Don't you use these devices to give input & get output from computers?
Me: Now, what do you call these devices as?
Me: Don't you call them as "I/O devices"?
Me: Doesn't the OS manage these I/O devices?
Him: Yes. Sir! I should've had a staff like you in college. I should've met you a year back when preparing for interviews.
Me: Well, it is not too late.
I told him that he may not be suited for the position that we are looking to fill. I then recommended him the list of things he should learn. I also gave him my contact number & email. I asked him to get in touch with me for any questions/doubts regarding interview preparation. I wished him all the best.
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