When you press some key in your mobile , screen shows its reflection , but how ?

hello friends its important to all of us to understand what is happening in-front you and still you are unknown from these things . see today i am explaining a thing which is or which can describe or can makes your doubts clear that " When you press some key in your mobile , screen shows its reflection , but how ? " .

see this is our mobile keys .

see this is not ma mobile keys its is suns microsystem's default phone for testing your applications , but we all know that our phones has all these keys , now when ever we press some key we see its result in our phone screen .

now my field or point start that , if you press 1 than 1 will display in your screen and when you press 2 , 2 will display in your screen but how these things are working , and the fact comes that you can also perform calculation in your phone or in your device .

now so , it is same like our keyboard with monitor means you are pressing some key in your keyboard and your screen or monitor is showing the display , and we all know that UNICODE the mood changer , the universe of characters is helping you or all of us in our coding scheme . but but , the point comes when you press a key whose unicode is not present . than the problem arise so that is the point what i want to explain .

now you have every code for these buttons , and for these you can use ASCII character scheme , but after EUROPE other countries , are also creating their mobile and entering their own character set . so we need or introduced a charset known as UNICODE .

now we have these keys in our mobile phone and i want to ask how these keys are operated or handled in our mobile system or by our mobile machine . but you can easily see that the other keys are handled by unicode means now your every positive value is added to some language , means every positive value is used for some character which is in some language . so now we have negative numbers , now you will rise a question that how negative values are handled .

see how key reflection is performed .

 
 now how these other keys which have blank key code are operated by mobile or our machine .

so thanks ....