Time: 3 hours Max. Marks: 60 Answer any FIVE questions
All questions carry equal marks *****
1 (a) Draw and explain the internal architecture is 8086
microprocessor. (b) Explain the I/O addressing capability and
instruction used for I/O addressing. Give
suitable examples. 2 (a) Explain the memory management unit of
80286 processors. (b) Explain the functionality and role of 80288
system bus controller in 80286. 3 (a) Explain how 80386 can be
moved to protected mode. (b) Describe the register organization of
80486 microprocessor. 4 (a) Describe the mechanism used to reduce
the branching delay in Pentium processor. (b) Draw and explain the
internal structure of Pentium pro microprocessor. 5 (a) List out
the enhanced features of Pentium processor as compared to 8086
family. (b) Explain the salient features of superscalar processor
architecture. 6 (a) Explain the interfacing of DMA controller to
the 8086 microprocessor. (b) Explain and compare programmed I/O and
interrupt driven I/O data transfer. 7 (a) Explain how semaphores
are useful in resource management. (b) Explain the virtual memory
concept with a suitable example. 8 (a) Write a short note on the
additional instructions supported by 8087 as compared to that
of 8086 microprocessor. (b) What is MMX? Briefly discuss the
major instructions supported by Intel MMX
