This is an interesting question given the current popularity and ongoing discussion of Sheryl Sandberg's book Lean In. In this non-fiction book by the current chief operating officer of Facebook, it is suggested that women in the American business world are, in fact, still treated as inferior to men.
On of the most prominent examples of real life discrimination mentioned in the book is the fact that women currently make up just over 50% of college students, yet, men continue to dominate the leadership positions in the actual business world.
This morning, in a small piece on "CBS This Morning" Sandberg discussed that right now, women only make up about 30% of the computer science and technology industry workforce, again, despite the fact that they are the majority gender in current college enrollment. One reason behind this that she suggested is that many men get into computer science and technology because of an early interest in video games, which, she says, are predominantly geared toward boys.
These are just two very quick examples among many suggested in this current bestseller alone. I encourage you to brainstorm other examples based on observation and experience.