I just stumbled upon a web site which still sells the Elenco Micro-Master MM-8000 Computer Training Kit, a state-of-the-art piece of educational hardware which includes an 8085 processor, 256 bytes of RAM, and a convenient set of keyswitches and LEDs for entering programs and inspecting memory. I remember seeing these in magazines like Electronics Now in the early 1990s, and they sure haven’t changed.
Here’s an excerpt from the manual where they describe how to load your first program: