Whether Flash device is removable. Generally, only PCMCIA
Flash cards will be treated as removable. Socketed Flash
chips and Flash SIMM modules will not be treated as removable.
Simply put, only those Flash devices that can be inserted
or removed without opening the hardware casing will be
considered removable.
Further, removable Flash devices are expected to have
the necessary hardware support -
1. on-line removal and insertion
2. interrupt generation on removal or insertion.