Sistemi operativi - concetti ed esempi

Operating System Concepts covers a lot of ground, and I'm curious how Abraham Silberschatz chose what to emphasize for students and professionals alike.

These topics can be so confusing, but this book's approach seemed especially accessible. Did it help others grasp these complex ideas better?

The case studies made the concepts feel more tangible, but I wonder if they were based on specific systems or chosen for their illustrative value.