Concept of Digital City is a hot topic of research. With the advancement of information technology and internet, development of Digital cities has become very easy and it has lead to the sustainable development of cities. This paper describes the term Digital City, its need, its worldwide progress, efforts required to expedite the growth of Digital Cities and in the bargain growth of "Digital Earth" and use of digital concepts by the researcher.

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Digital City Digital Earth It (information Technology) Ict (information Communication Technology) Rfid (radio Frequency Identification Pda (personal Digital Assistant)