https://powdertoy.co.uk/Browse/View.html?ID=2146991 

Specifications:

 Proccesor:

  4-Bit architecture

  Manufacturer: Ortega

  Response time: 30-57frames

 Memory:

  Size: 20-bit

  Structure: Array, Switch, Piston

  Adresses: 001, 010, 011, 100, 101, 110, 111

  Controller: Bin>Dec

  RAM: 9-bit

 Control:

  System: SPRK Command(Switch)

  Instructions Language: 4-bit Binary

 Other:

  Screen: LCRY

  Number Pad: Filt

Instructrions:

 Solving:

  Step 1: Enter you Binary problem in Control Unit

  Step 2: Turn on the solve switch

 Memory:

  Open switch of Cell you want to read, write, or erase

   Write: Enter an address then press CLR while it is Solving

   Read: S1: Enter an address then press CLR  S2: Press R

   Erase: Press E

   Bypass: S1: Read S2: Press BYP(Press again to close)