What is ISA?

a. Specifications of Machine code, Addressing modes, and etc..

b. Specifications of Programming Languages, Data Types, etc..

c. Specifications of RAM (Internal Memory), Hard Drive, etc..

d. Specifications of Network Interface Cards, Ports, etc..

Which of the following will affect the performance of a program?

a. Algorithm of the program

b. Efficiency of the compiler

c. ISA of the Computer

d. All of the above

Consider a program that takes 16 sec to execute. It has two parts A and , where Part A runs for 9 sec and Part B runs for 7 sec. Sam discovered that with same cost part A can be improved to run 3 times faster, OR part B can be improved to run 7 times faster (but both parts cannot be improved at the same time). Which part should be improved to get better overall performance?

a. Part A, because it takes longer time to execute- make common case faster

b. Part B, because it can be improved to run 7 times faster

c. Either A or B ; both improvements give same overall performance (10 sec)

d. Neither A nor B; based on Amdhals law the overall performance cannot be improved

If 110_b= 12₁₀, what is b (in base 10)?

a. 8

b. 4

c. 3

d 2