But .txt is not the same as .rs; yet .txt is not the same as .docx, although both of these files look the same to the human eye.
But .txt is not the same as .rs; yet .txt is not the same as .docx, although both of these files look the same to the human eye.
images are pixel colour information while audio and video are compressed data ?
It’s pretty hard to break file types into these discrete categories. Images can be raw pixel colours (see ppm), losslessly compressed pixel data (see png), or lossily compressed pixel data (see jpeg).
Depends on the file format. There is compressed and uncompressed audio - some times the numbers just represent the audio waveform (e.g. .wav) - some times with lossy lossless compression. Most, but not all, video formats are compressed due to the data size
an image, technically, is an array of pixels. specifically a 2-dimensional array. this means, it’s just a long list of lists of pixels. so if you have a 1920x1080 image, it’s just a list of 1080 lists of 1920 pixels each.
each pixel, again, is a tuple (i.e. a list with fixed length) of numbers which specify the brightness of red / green / blue lamp. so if you want to display a yellow pixel, the data would be (1.0, 1.0, 0.0) which turns red and green on and blue off.
so if you have a 1920x1080 image, technically you have 1920*1080*3 ≈ 6 million numbers. each number takes 32-bit, you can read it here
There’s as many files as applications use. But just to make a point following your reasoning, you should include CAD, sliced and blender files at least to cover 3D objects.