I'm having difficulty explaining the differences between text and images of text (or text in images in general). I've stated that:
- When text is text, parts of the text can normally be selected and copied but images can only be selected and copied as a whole.
- Text is searchable whereas text in images are not
- Text in images is like a word appearing as part of a painting
Obviously my explanation was not very helpful as I showed them a few samples afterwards and they couldn't correctly identify which were text and which were images. Some of the samples were really obvious as the text was interpolated with images but from their conceptual model, it appears that the bigger the font size, the more likely that it is an image.
I've told them that while browsing the Internet, try right clicking on things and if the menu shows things like "Save picture as" or "Save image as" then it is an image. But then there's the cases (e.g. the Super User logo at the top left of this page) that are background images in CSS which don't show those options and they become confused as to whether that logo is an image with text or an image beside text.
Can someone provide me with an explanation that is suitable for computer illiterate users?