State the required answer precisely and then provide properexplanation. It is not enough to provide one- word or one-lineanswers.  

In some computers, every byte of data read or written isdirectly handled by the CPU, through programmed I/O or interruptdriven I/O.   There is no DMA (DirectMemory Access).   Is multiprogramming technicallyfeasible, if not really effective, with such an organization?Explain.  

Thanks a lot for your help!!!