“Chips” is the widespread term for money chips, often used in thousands - KC. Chips are the widely-used unit of currency in the Nightlancer world and Nightlancers use large quantities of them. It is not a legal currency in Britain, but is widely used since there is little that can be done to stop it in the slums. In Britain in particular, they are also often called "quid".
The currency is itself is called the ChipBuck (C$), though this name is hardly ever used. ChipBucks are a digital currency but the exact nature of the currency is not clear. Very few people know anything about who exactly invented the currency and who checks on the servers that track transactions, but the currency is long-established and accepted. ChipBucks can be transacted onto physical storage chips, to allow them to be used as a form of cash making tracing them even more convoluted and usage even more flexible.