Problem $1$: Introduction and Trends in technology $)=(30$

We are reviewing some basic concepts covered in our first and second lectures.

a$)$ What is the computing stack that we disused in the class? $($list all $($e$.$g$.,$ application$)$ in your answer

b$)$ What is the computing wall $($a$.$k$.$a brick wall?$)?($list all in your answer$)$

c$)$ What metrics should be quantitatively analyzed for evaluating the computer design?