Does EGS refer to the device or the ERP solution?

Hello

I was wondering what EGS refers to. Does it refer to the ERP itself or the physical device generating the invoice?

Lets say I have the same ERP running on 2 different PCs at my organization (same database).
Both PCs may do the invoicing, and the invoicing sequence is unified of course. First PC generates ICV No. 1, then second PC generates ICV No. 2, then first PC generates No. 3, etc…

Is this acceptable?
Does each PC represent a unique EGS?