Many CS students learn programming without understanding hardware fundamentals. Existing educational computers are either too abstract or overwhelming with modern complexity.
Design kits that recreate early computing concepts using discrete components - logic gates represented by literal lightbulbs, simple mechanical switches for input. Include project guides progressing from basic circuits to simple programs.
Sell complete kits to schools and hobbyists. Start with one well-documented design before expanding the product line.
Balancing educational value, affordability and durability would be challenging for physical products.