This is a term Joel Kurtzman uses in his book "The Death of Money." He says the paper money in the United States is being replaced by electronic funds transfers and cybercash. Cybercash is cash or money that resides in Cyberspace only. The day is coming when there will be no need for the physical handling of money. Everything will be transacted via the computer and electronic means, as much of our financial business is accomplished now. Hence, the term "megabyte money."