Computer Architecture w/ Assembly language

please help with homework question

Part 1: Please answer the following questions about translating high level language programming to low level language programming:

For each of a), b), and c) give answers that are no more than 2 sentences long. Any answer that is more than 2 sentences long will not be graded.

a) What is the purpose of the assembler? What does it do with assembly language code? b) What is the purpose of the compiler? What does it do with high-level language code? c) What is the difference between assembly language and machine language code?

Part 2: Please answer the following questions about twos compliment arithmetic:

For each of d) and e) give answers that are no more than 3 sentences long. Any answer that is more than 3 sentences long will not be graded. d) Explain how two's complement arithmetic is used in the MIPS architecture e) Explain how two's compliment arithmetic is performed with two integers when the two integer values have no sign bit (that is, they are unsigned 32 bit integer values)