Operational definitions are at their most controversial in the field of psychology where intuitive concepts, such as intelligence need to be operationally defined before they become amenable to scientific investigation, for example, through processes such as IQ tests.
Ven (sign: VEN) is a global digital currency traded in international financial markets and originally used by members of a social network service, Hub Culture, to buy, share, and trade knowledge, goods, and services.
VPN is short for Virtual Private Network. Think of your home network, or your office network, as private networks. Through a VPN connection, your computer, tablet or smartphone is able to securely connect with others on the Internet as if they were part of the same private network.