Summary: Learn the difference between a read-only variable and a constant.
Question: What is the difference between a read-only variable and a constant?
Answer: A read-only variable is one with content that is read-only. It can, however, be modified by using the Set-Variable cmdlet with the –force parameter. It can also be deleted by using Remove-Variable –force. A constant variable, however, cannot be deleted, nor can it be modified--even when using the force.