Old Organizers Collection
"This is the biggest collection of monochrome electronic organizers, text and graphic PDA's, older brothers of nowadays multimedia handheld devices in the WORLD." an invaluable resource tbh
Chris Covell's Epoch Game Pocket Computer page
"a handheld game system released by large Japanese toy manufacturer Epoch in 1984/85. For its time, it was quite advanced as far as videogames go, sporting a 75x64 pixel B&W dot-matrix display, interchangeable game cartridges, a circular D-pad, and six action/selection buttons." it's a cutie!