Hoi!
Hardware is any device used with your computer. (Such as your mouse of headphones), while software is coding that has been installed onto the hard drive of your computer. :)
Answer:
"To create any of these Greek letters using the Alt codes, simply press the "Alt" key while simultaneously typing the listed number. For example, to create the Greek letter Alpha (α), press the "Alt" key and type 224 using the keypad at the right side of your keyboard." - GOOGLE
Answer:
Many artists now learn to code; computer scientists develop algorithms with aesthetics as the goal. Projects such as Deep Dream, a program that uses neural networks to produce new visuals, let anyone use AI approaches to generate, ostensibly, art.
Black is the darkest color, the result of the absence or complete absorption of visible light. It is an achromatic color, literally a color without hue, like white and gray. It is often used symbolically or figuratively to represent darkness, while white represents light. This should help. If wrong, I am sorry.