MMMMMM................ I thinked alot before asking this question,,, but i think that it is the convenient time to ask it although i know the answer but i want to know some declaration ...

What is the difference between ttys and pts and is there another terminals to discover here ?????
and what is the point and if there is a link to read about it???

Thanks in advance

I don't find any answer , is there some problem ............ is the question clear???

Just tell me and i will do my best >>>>>
:o