Question

why we r calling windows 7 whether 7 is a version no ?

Answer 1

http://en.wikipedia.org/wiki/Windows_7
have a look at that for more info

Answer 2

i THINK coz it's the seventh operating system by Microsoft !!!i'm not sure though

Answer 3

well, its not the seventh operating system, but rather the seventh line of operating system. like one version of Windows 7 was called version 6190 or something like that, but to distinguish it from 3.1, the NT versions(such as XP) which I think were windows 5.0 etc.

Answer 4

i think that it was because of 7 trend after james bond movie