(a) What are the differences between Harvard and Von Neumann architecture? Explain using a suitable diagram. (b) How does DMA increase system…

(a) What are the differences between Harvard and Von Neumann architecture? Explain using a suitable diagram.

(b) How does DMA increase system concurrency? List the data transfer modes of 8237 DMA controller along with their speciality.

(c) Define addressing modes in microprocessors. Describe any four addressing modes used in the 8086 microprocessor with your own example.

(d) A frequency modulated voltage wave is given by

x(t) = 10 cos(6.28 × 10⁸t + 5 sin 1256 t).

Find: (i) Carrier frequency

(ii) Maximum frequency deviation, and

(iii) Power dissipation by the FM wave in a 10 ohm resistor.