How CPU works !!??

How Touchscreen Works ??!!

Here's a question: What is a technology that you can't see, but is essential to smartphones, tablets and other mobile devices -- and is estimated to generate $16 billion in revenues this year (according to DisplaySearch)? The answer is multitouch touch screens  which have sparked the explosive growth of the mobile device market.

Video explaining the process:

Resistive screen

Capacitive screen

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Binary bits (bit)

What would the binary number 1011 be in decimal notation?

  1011=(1*2^3)+(0*2^2)+(1*2^1)+(1*2^0)
      = (1*8) + (0*4) + (1*2) + (1*1)
  = 11 (in decimal notation)

The Binary System : 

A pretty damn clear guide to a quite confusing concept by Christine R. Wright with some help from Samuel A. Rebelsky  in-here 

in youtube