a typical printed page of text contains 100 lines of 80 characters each. the printer can print 6 pages per minute. we run this printer using dma. the cpu needs 50 microseconds to properly configure the dma controller and the cpu needs 50 microseconds to handle the interrupt from the dma controller once the printing is done. the dma controller needs 1 microseconds to transfer each character from the main memory to the printer controller. to print 1 page, how much total cpu time is needed for the printing? (1 second
