Time and Concurrency (A Programmer's Journey)We are using computers in environments where our software is the ``brain'' of the system, which has minimal or no interaction with human, e. g., car engine control systems, assembly line robots, etc.; these systems must operate in our notion of time, i. e., real time. This book is about how to deal with time and concurrency in software. Computers can execute instructions much faster than we can count. We use our software (or computer) to accomplish as