Computerhilfen.com: Service???

I became confused when I heard these terms which reference the word 'service'.

Internal Revenue 'Service'
U.S. Postal 'Service'
Civil 'Service'
City & County Public 'Service'
Customer 'Service'

This is not what I thought 'service' meant. But today, I overheard two farmers talking, and one of them said he had hired a bull to 'service' a few cows. BAM!!! It all came into perspective. I now understand what all those 'service' agencies are doing to us.

I hope you are as enlightened as I am  ::) :).