i tried internet banking.. tried to pay using $1 to
test.. but the credit limit still the same... same amt.. didnt
increase by $1
The backend computer server are not bought just to serve one
dedicated customer. It is meant to serve many many customers. So to
be fast they do batch update instead of every request update. This
is for efficiency purposes.
Example, you accounts clerk a lot of invoice come in. You process
each one as they come in? It is so inefficient. So you compile a
small stack then process all at one go.
