Difference between a Postback and a Callback

Question

I keep on hearing this words \'callback\' and \'postback\' tossed around.
What is the difference between two ?

Is postback ver

Answer 1

I agree with Dreas' answer, but I'd like to add a couple of points. Postback is a term that gets introduced very recently by ASP .NET programming as Dreas explained, whereas callback is more generic and has been used way before web development exists. In fact I first heard about callback back in the days when I started programming in C (maybe the term existed before that, I don't know) and it simply means a pointer to function and this pointer to a function (name this A) gets passed to another function (name this B) which will later invoke A. Callback is also recently used by Yahoo UI Connection Manager and other Ajax frameworks but I believe the term had its first use back in the old C days.