New York is a global city at the centre of an emerging digital economy. The study is to understand the technologies that allow us to transfer weightless information via digital networks. Today cities are thriving from digital technologies. Examples of this are shown everywhere in modern cities today. Digital surveillance is one example, which involves the use of digital security cameras. Digital entertainment is now probably one of the major industries in the world. With the invention of Digital Versatile Discs (DVD’s) and MP3 sound format, home digital entertainment has taken off massively. Cities are the financial markets where these leading digital entertainment producers gather and operate. Digital finance is another major industry. New York is the heart of one of the world’s largest stock exchanges. There is digital communication with the rest of the world, and the speed of communication is vital in the stock market. Cities also portray themselves through digital advertisement, usually via the Internet. Other digital features within cities include digital mapping, the media and digital services.