Those are the basic concepts for understanding how the digital world represents graphics and geometry. You use them every time you connect yourself to a computer, but probably you weren’t aware of it.
What is a Bitmap?
A bitmap is an image represented by a matrix of squared pixels where to each is assigned a specific flat colour.
This technique is commonly used for representing very complex images, as for example the photos taken from your digital camera. That’s why that industry refers to “mega-pixel” when talking about picture quality. But we will get there in a minute.
So, now we understand that we’ve come a long way since the begging of digital computing. We moved from seeing big “bulky” pixels on the computer screens to the era where seeing pixels is not admissible or just done on purpose like a retro style.