4. a. What is the principal advantage of postfix notation ?

b. Convert the infix expression (2+3) - 6/3 *2 to postfix:

c. Suppose that 8M * 16 main memory is built using 1024KB * 16 RAM chips and memory is word-addressable.

i. How many RAM chips are necessary?

ii. How many RAM chips are there per memory word?

iii. How many address bits are needed for each RAM chip?

iv. How many banks will this memory have?

v. How many address bits are needed for all of memory?