In this example - Educative: Interactive Courses for Software Developers
To-Do list app is given as a 2-tier service, but considering the performance, look and feel, it will be almost similar as UI and business logic reside in client’s computer then why we are storing DB in another computer, very less network calls can be a reason but 1-tier can send the numbers to 0 ?
Just wanted to know why 2-tier is favourable then 1-tier in this case ?