Hmm, no. many of the classics of compsci are not available to read online, and there are even some which are practically impossible to find even as shitty scanned pdfs
Here are a few of the books on my bookshelf that are not available as ebooks for purchase and would probably be very hard to find pirated copies of:
The Psychology of Computer Programming
The Paralation Model
Handbook of Human-Computer Interaction
Object-Oriented Programming in Common Lisp
Computer-Aided Financial Analysis (Miller)
Probability, Statistics, and Queueing Theory (Allen)
The Brain Makers
Note that I sold off most of my library and regularly sell books once I am done reading them, so this is just a small sample of the material that you will not find online, that I have personally read. Also all the older/rare books I have borrowed from/read at my local public library (public libraries have a surprising amount of computer books), and the university libraries I have been associated with earlier.
Whoever discounts computer science books today because "you can find it all online" does so out of a very deep ignorance of computer science. Between Google Books and the Internet Archive's scanning project digital copies do exist, but are inaccessible.
Hmm, no. many of the classics of compsci are not available to read online, and there are even some which are practically impossible to find even as shitty scanned pdfs