Digital products can be replacements for physical products, or products without physical analogues may not have physical analogues, but often in such cases they replace tasks carried out by manual processes might have physical analogues that are sold only as part of larger products All digital products have three basic physical characteristics. However, the essence of the product is unaffected by use. If it has been backed up , it can survive practically forever if properly stored Here the property of almost costless duplication is critical in ensuring the long life of the digital product in practice. Copying by potential users without payment strikes at the heart of the economics of digital products Storage, compression, transmission, rewritable media, all have improved dramatically Makers of digital products have three remedies Update and upgrade products or bundle them with other services that can not be accessed by owners of illegal copies.
Much content is free advertising samples self-promotion,shared interests, etc.
The information superhighway is about the global movement of weightless bits at the speed of light.