Been wondering about this for a while. Just one of those odd childhood memories.
When I was a kid growing up in Oakville, Ontario, I remember Oakville Mall getting one of those very early mall directory computers. This would have been like, 1982-84, somewhere thereabouts. From what I remember, they had kind of CGA-sh graphics and a chiclet 'keyboard' you used to browse the directory. I'm wondering, were they just PCs, most likely? Or some kind of custom job?