1) why is it important to model an idea before making a final prototype? 2) why is it important to brainstorm before you start deigning?

1) If you begin making a final prototype and did not create a draft, there are more room for errors and will take longer because you'll have to figure out what to do as you go rather then having the prototype laid out.

2) Brainstorming is important because having multiple ideas will allow you to rule out what you do and don't want in your design.

like any other technology, art form or field, digital cameras have their own nomenclature. the alphabet soup of jargon can be as confusing and intimidating as trying to understand how all those dials, buttons, levers and menu options affect the pictures and videos that you capture. fear not, because we've defined the most important words, phrases, commands and options you'll need to know when shopping for and learning to operate your new dslr, mirrorless, smartphone or other camera.