1. Instruction set architecture Problems Prof. Sin-Min Lee Department of Mathematics and Computer Science

10. What is the computer architecture ? How is it different from the implementation ? (Instruction set) architecture is the interface between the hardware and the low-level software. Architecture is anything a programmer needs to know to make a binary program work correctly. An implementation is hardware that obeys the architecture abstraction.

14. Computer programs are represented in several levels. (1) Name each level. (2) Write sample codes (two lines per level) of each level. (3) What are the names of programs that translate one level to a lower level ?

51. Operand Addressing Jan Lukasiewicz (1878 – 1956) –Introduced “Polish Notation” (prefix notation) –We call postfix notation “Reverse Polish Notation”, or “RPN” (used in many HP calculators)