What are guard bits? 38

What are guard bits? 38. What are the ways to truncate guard bits?Explain the Differences between CISC & RISC. (8) (b) Explain the various Instruction types? (8) 2. Write in detail about various addressing modes. (16) 3. Explain the various generations of Computer (16) 4. (a) Explain the Booth’s algorithm for multiplication of signed two’s complement numbers. (8) (b) Explain the multiple bus organization in detail. (8) 5. Explain the floating point addition and subtraction (16) 6. (a)State the Non – restoring division technique (8) (b)Draw and explain the flowchart of floating point addition process.