What you really want to watch out for even more so than color change, is meat or poultry that has a bad odor or is sticky, tacky, or slimy to the touch. Let your other senses be your guide in these instances. Read more: The Color of Meat and Poultry - USDA.
Windows Management Instrumentation(WMI) is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components can provide information and notification.
It is cool. RS, to find out information about the CPU, I use the Windows Management Instrumentation (WMI) class Win32_Processor. In Windows PowerShell, a single line of code that uses the Get-WmiObject cmdlet to do the heavy lifting is all that is required.