First of all excuse me if you think its a noob question, but consider me a noob as I am trying to understand.
I've got a couple of questions about mining, (which I think fits in bitcoin section rather than the mining section)
First: Why do bitcoin needs mining?
Second: What do they actually mine?
bitcoin need mining because every sending bitcoin and transaction bitcoin need find block, without people mining i think transaction is big problem, you known about accelarate transaction, mining company open service and can incraese fast transaction confirmation with txt id in use mining service