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Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Payments & settlement

American Express

American Express Company (Amex) is an American bank holding company and multinational financial services corporation that specializes in payment cards. It is headquartered at 200 Vesey Street, also known as American Express Tower, in the Battery Park City neighborhood of Lower Manhattan; in 2026, the company announced that it would develop and be the sole occupant of the new 2 World Trad

Payments & settlement

EFTPOS

Electronic funds transfer at point of sale (EFTPOS; ) is a type of payment transaction in which electronic funds transfers (EFT) are processed at a point of sale (POS) system or payment terminal usually via payment methods such as payment cards (debit cards, credit cards or gift cards). EFTPOS technology was developed during the 1980s.

Payments & settlement

Payment card

Payment cards are part of a payment system issued by financial institutions, such as banks, to a customer that enables its owner (the cardholder) to access the funds in the customer's designated bank accounts, or through a credit account and make payments by electronic transfer with a payment terminal and access automated teller machines (ATMs). Such cards are known by a variety of names

Payments & settlement

Payment system

A payment system is any system used to settle financial transactions through the transfer of monetary value. This includes the institutions, payment instruments such as payment cards, people, rules, procedures, standards, and technologies that make its exchange possible. A payment system is an operational network which links bank accounts and provides for monetary exchange using bank dep

Payments & settlement

Payment terminal

A payment terminal, also known as a point of sale (POS) terminal, card machine, credit card machine, card reader, PIN pad, EFTPOS terminal (or by the older term as PDQ terminal which stands for "Process Data Quickly"), is a device which interfaces with payment cards to make electronic funds transfers. The terminal typically consists of a secure keypad (called a PINpad) for entering PIN,

Payments & settlement

QR code payment

A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. This is an alternative to doing electronic funds transfer at point of sale using a payment terminal. This avoids a lot of the infrastructure traditionally associated with electronic payments such as payment cards, payment networks, payment terminal and merchant accounts.

Payments & settlement

SIA S.p.A.

SIA S.p.A. is an Italian company operating in the area of ICT, providing services to the banking and finance sector in addition to platforms for financial markets and e-payment services.