Micro SD cards are one of the smallest removable flash memory card formats designed specifically for small devices, mainly used as phone memory. Smaller than miniSD cards, and also based on the SD card format.
Begin early; decide a career path for yourself only after determining the strengths, you goals, and the kind of course that suits your aptitude. The key thinking, then, is: think about your strengths, about where you want to go, about what style of course suits you best and start to plan your career trajectory early