Compare and contrast Direct Memory Access (DMA) to program and interrupt driven I/O. 

Explain in detail the primary components that comprise a Central Processing Unit. 

Suppose you have a HDD with an average seek time of 10 msec and a rotational speed of 5400 RPM.  How long would it take to transfer 1M byte.  Assume 500 sectors on a track, and each sector contains 512 bytes. 

Suppose you have a HDD that with an average seek time of 8 msec and a rotational speed of 7200 RPM.  How long would it take to transfer 1M byte.  Assume 500 sectors on a track, and each sector contains 512 bytes. 

A signal has a frequency of 100 megahertz, what is its period? 

3.   Which microbiology pioneer correlated the infection rate with the frequency of hand washing?

17.  Who was the first person to report that cells are the smallest living unit?

32.  Some microbes can survive the drying process called:

  If the input is 12, what is the final value for numItems? int x;int numItems = 12;x = scnr.nextInt();if (x == 12) { numItems = 100;}else { numItems = 200;}numItems = numItems + 1;  

In a few complete sentences below, explain how epinephrine can cause intestinal blood vessels to constrict and also cause skeletal muscle blood vessels to dilate at the same time. You don’t need to go into extreme detail to answer this question.  Only the level of detail covered in this Unit will suffice.  This question can be answered in 1-2 complete sentences.