For those thinking 'computer' like we are executing on some system outside of our reality, then I think "no". But, if we take that the universe has rules, and

For those thinking 'computer' like we are executing on some system outside of our reality, then I think "no". But, if we take that the universe has rules, and all particles are following a wave function, and interacting. Then it is ok to think of our universe as 'executing functions'. So our universe is self executing, like a computer. There is no randomness, just rules we haven't discovered. See Super Determinism.