The article 'Computer Science from the Bottom Up' is a resource focused on Unix OS and system programming, covering topics such as computer architecture and low-level programming. The author aimed to help students understand how their programs are built and run, addressing the lack of foundational knowledge in some computer science students. However, some readers argue that the title is misleading as it does not cover the full scope of computer science. The resource has been found helpful by some, but others have pointed out errors and areas for improvement.