I am new to open CPU concept

I am new to open CPU concept.I mostly work on 32 bit controller and 8 bit controller.
So i have to work on multiple things
Data to send throught http SIM network
Get location through GPS and also using bluetooth
I working on MC20 module.Please provide some tutorial or pdf which help me alot.
I found out it is working on RTOS concept not like 32 bit controller.
Here i have to create task. I have not much about RTOS thing so please help me out
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dear Pranav_Kumar

What is the specific model of the module you use?

Do you want to use OPEN mode or standard mode? If you are in OPEN mode, you already have an SDK?