New Mac Machine is asking apple id on start up of machine is it really required or mandatory to have an apple id to start with this? if so can i create an apple id without providing any credit card info?. Please guide this newbe...
As Apple puts it:
An Apple ID is the login you use for just about everything you do with Apple, including using iCloud to store your content, downloading apps from the App Store, and buying songs, movies, and TV shows from the iTunes Store.
Bear in mind that an Apple ID goes beyond iCloud and the different Apple Stores. Apple requires it if you want to interact with many of its services like (partial listing from http://support.apple.com/kb/HT5616):
It's clear that Apple wants you to create an Apple ID, preferably with credit card information.
That said, an Apple ID is not required for logging in on your Mac - and if you create one, you can do so without entering any credit card information, see http://support.apple.com/kb/ht2534.
I'd recommend that you skip the step now and create it later when you notice that you need one (and you will :-).
(Take a look at Frequently asked questions about Apple ID for more information.)
You can absolutely skip the Sign in / Create AppleID step, simply click the "Skip" button in the lower right corner of the window:
You can always sign in and/or create an AppleID after the fact. After skipping the step in the initial setup you WILL be prompted to create an account, however this is a local user account that will be used to administer your Mac, this is in no way attached to AppleID aside from enabling the option to "allow AppleID to reset this password".