What sets apart a removable drive from a non-removable drive, and an ejectable drive from a non-ejectable drive?

I am looking to transfer my OneDrive folder to my SD card. Internet sources suggest that this is possible. However, I am curious–if the SD card is inserted into the slot, can it be both removable and ejectable?

Is there a way to make an external drive non-ejectable?

​What sets apart a removable drive from a non-removable drive, and an ejectable drive from a non-ejectable drive? I am looking to transfer my OneDrive folder to my SD card. Internet sources suggest that this is possible. However, I am curious–if the SD card is inserted into the slot, can it be both removable and ejectable? Is there a way to make an external drive non-ejectable?  Read More

​