We are living in the era of electronics products and we see the evolution and miniaturization of every electronic products. In earlier days our parents used to listen music in Gramophone or radio and those were very large in size. After that wee in our childhood days radio or any tape recorder of small sizes. But nowadays radio is available in cell phone or even in wrist watch also.
Like earlier days we used to listen music in audio cassettes but due to improvement of technology we listen music through audio CD. And the quality of sound also improves and there is no doubt about that. The miniaturization becomes possible due to the advancement of semiconductor technology. In earlier days or even in 70's decade a single chip was able to perform a single function or less than 10 functions. But due to introduction of Large Scale Integration (LSI), Very Large Scale Integration (VLSI), Ultra Large Scale Integration (ULSI) a single integrated chip is able to perform more that 1000 or even 10000 functions. And due to that advancement in functionality it is easier to design a radio or any other electronic device with less number of chips. Thus the...