: Single and multi-server models (M/M/1, M/M/c).

Detailed focus on Binomial, Poisson, Geometric, Uniform, and Normal distributions.

After conducting a thorough search, I found that the book "Probability and Queueing Theory" by Balaji is available in various formats, including PDF, and can be downloaded from some online platforms. However, I couldn't verify if it's officially available for free download from the author's or publisher's website.

Probability and Queueing Theory is a cornerstone of computer science and communication engineering. For many students, the textbook by has become a go-to resource due to its exam-oriented approach and clear explanations.