Zero instruction set computer

Zero instruction set computer (ZISC) is a type of computer that uses a very simple type of instruction set. This means that the computer only uses very basic instructions like "add" and "subtract" instead of more complicated commands. ZISC computers are usually very small and simple and can be used for very basic tasks like controlling simple devices like lights or motor. Because they don't need complex instructions and don't require lots of memory, they can save lots of money and be used in places where other computers would not work.