Today bitcoins are considered financial products, let's try
to explain what that means.
Bitcoins were initially devised for the limited context of
video-games, then they spread as a means of payment. Today they are
"crypto-currencies", i.e.a currency that can be seen and
used only when knowing a specific code.
More in detail, bitcoins are created, stored, and used on
electronic devices, where they are stored in personalized accounts
or "electronic wallets"("e-wallets").The holder
in possession of the alphanumeric access keys can access and
transfer them at any time and without the need for the intervention
of third parties.
Bitcoins can be purchased for legal tender through service
platforms or "exchanges". They conventionally replicate
the functions of legal tender.