I've searched throughout this forum and see that the reason textures are in pink is because "the link to the texture file is missing". I understand the whole external file linking workflow from other work I do.
What I don't understand is that I've not imported any textures which could have been lost. I'm using Blender (2.76) right out-of-the-box (and yes, I'm a complete noob), building from a blank start-up cube (no appends).
There appear to me to be default "textures" listed under 'type' such as 'clouds' and 'voronoi'. I've managed to apply a clouds 'type' with no additional external texture file to create a crude, but sufficient-for-now, wood effect.
What are the items listed under 'type'? Are they textures or some 'other thing' and if so, what is the 'other thing' (So I know what to look-up in the index of the noob guides I'm using)?