Computing memory that retains data in the absence of a power supply i.e. it is non-volatile memory. Answer. A computer chip with a read-only memory that retains its data when the power is turned off...
Because light is fast. And a flash is light. And flash memory is fast.
Memory sticks use flash memory.
One would need to buy a USB Flash card reader. they are cheap enough. dont forget to look for a "compatible with MAC" Logo.
I don't know you just do...you just do...