Hi

How are you doing!
I'm an Oracle SOA Consultant with a solid experience on all of the SOA stack viz. SOA, BPM, OSB, Security. Earlier to that, I was in Java for abt 3 yrs.
I'm looking forward to learn Salesforce and shift my career into this for good.

I want to know what is the pre-requisite for learning/getting into Salesforce? Should I have a CRM experience? Or should I have command on any specific technologies? Or what should be the approach to get into this field.
I'm very focussed on spending time and learning this new technology, but I'm so new to this that I'm confused with terms like Salesforce1, force.com, etc.
I can spend some time to know these terms, but it would be great if you guys who are already familiar with it, or who have shifted your technology to salesforce would answer so that it would be more apt for me.

Could you please give me some links to basically understand the terms involved in this field so that once I get familiar, I can decide what to learn and how.
Appreciate your response.

Regards
RaviKiran