The Midterm Solution - Suraj @ LUMS - Lahore University of ...

Part C [15 marks]26. Which technique frees up the CPU by transferring data directly between the I/O deviceand memory: [1]a. Programmed I/Ob. Interruptsc. I/O Channeld. I/O Registerse. I/O Processorf. DMA27. In which technique, does the CPU issue an I/O command, continues to executesubsequent instructions, and is interrupted by the I/O module when the latter hascompleted its work: [1]a. Programmed I/Ob. Interruptsc. I/O Channeld. I/O Registerse. I/O Processorf. DMA28. When an interrupt occurs, arrange the following operations in their order of occurrence?[3]a) interrupt service routine executedb) the registers are restored by popping their values off of the stackc) the processor identifies the source of the interruptd) the program counter and other registers' values are pushed onto the stacke) the address of the interrupt service routine is placed in the program counterOrder of Occurrence:1. ____c_____2. ____d____3. ____e____4. ____a____5. ____b____PTOPage 15 of 16