I know that Shader is a type of computer program that used for shading. And it looks like Material also define how model looks like. That means for me, that in Blender "Material" equal "Shader" (or not?) But if it so, why same thing named differently in different parts of interface:
Is there a some inconsistency here, or this is a different things? Can I call it "Material nodes" and "Shader tab" or it will be wrong?