1.What is DMA controller?
2. What is DMA channels?
3. What happens during DMA transfer?
4. What is half duplex transmission?
5. What is the difference between the bandwidth of half duplex and simplex transmission?
6. What are the processes required to perform interfacing successfully?
7. What is single input output interface? How it is different from single ended interface?
8. How does data transfer takes place between memory and input output ports?
9. What is parallel data transfer process?
10. Differentiate between PPI and input output devices.