ABSTRACT
Nanotechnology, the short gun marriage of chemistry and engineering in molecular manufacturing or more simply, building things one atom or molecule at a time with programmed nanoscopic robot arms. This technology proposes the construction of novel molecular devices possessing extraordinary devices by manipulating atoms individually and placing them exactly where needed to produce the desired result.
In this paper the two fundamental different approaches to nanotechnology are clearly explained including the two main concepts of the technology and differentiated those two concepts .Carbon tubes, which are the heart for this technology, is highlighted which possesses extraordinary physical and chemical properties because of which it is possible to make incredible components. The importance of nanotube transistors in making new class of smaller, faster and lower power consumed computer chips is illustrated. It is clearly described with neat and realistic figures how this technology has been a break through in all fields especially in computers and electronics.
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