Chapter 11, Problem 11.8CE11

Explanation of Solution

Given scenario:

In the given scenario, an IS department updates the software automatically and the patches cannot be allowed to go into sleep mode. This is because when the system move into sleep mode, the updates cannot be proceed further. So, sleep mode should never be used in the servers.

To determine:

To determine the cost (in watt) required for the computer which does not undergo sleep mode.

Calculation:

To calculate energy consumption cost, multiple the unit’s wattage by number of hours is given below:

Let’s say, the computer uses 200 watt    $=200wattx24$

Energy consumption per day    $=4800watthourperday$

Calculating the energy consumption for one month is given below:

$\begin{array}{c}Energyconsumptionpermonth=4800watthourperdayx30\\ =144000watthourpermonth\end{array}$

To calculate the cost, let us assume the cost to pay is 10 cents per watt hour is given below: