The details of the computing are hidden from the users who are no longer needed to be an expert in the field. In even simpler terms Cloud computing refers to a pay-per-use model of computing where applications and software are accessed over the Internet and not owned by users. IT companies can save huge costs on these products as they would not have to invest in purchasing them. The cloud computing market in India has been an ever developing one since the advent of the technology two years back.
so i use gmail, google docs, and host my website on frihost.
am i using cloud computing?
do i pay a single cent for all of these?
if you can physically touch your notebook, its definitely not in the cloud.
any node that you personally know exactly its physical location can't really be define as in cloud, even it does sit in the cloud. you can only call it in cloud if you don't know where it is. it just doesn't match your mental image. beside, when you draw you network diagram, you have to put your notebook there, right before your network go outside to the cloud. if you know the other machine on the other side of the cloud, you still will include it in your diagram on the other side (like diagram involving VPN connecting 2 sites.)
keyword: cloud. if you understand what all those technical terms means, you can always laugh at those people trying to recruit you into their get rich quick scheme.