Consider the interface between a computer and a printer. For a typical printout, it is clearly impractical to send output data to the printer one byte or one word at a time (especially over a network!). Instead data to be printed is stored in a buffer at a known location in memory and transferred in blocks to memory in the printer. A controller in the printer then handles the actual printing from the printer’s memory. The printer’s memory is not always sufficient to hold the entire printout data at one time. Printer problems, such as an “out of paper” condition, can also cause delays. Devise and describe, in as much detail as you can, an interrupt/DMA scheme that will assure that all documents will be successfully printed.