The A1000's faceplate was a lot smaller than the ADAM or the a2000. I remember this beast quite well and the infamous tape drive system it used. It was a Z80 based system running CP/M on a very proprietary tape drive system.
The A2000 had a more brown color scheme than the Atom which looked more like the stylings of an IBM XT/AT or a PCJr.. See the picture below..
