"Many historical OSes and interpreters have approached the SSI[2] ideal, but fail on persistence, determinism, or both. In the OS department, the classic single-level store is the IBM AS/400 [18]. NewtonOS [19] was a shipping product with language-level persistence. Many image oriented interpreters (e.g., Lisps [20] and Smalltalks) are also SSI-ish, but usually not transactional or deterministic. And of course, many databases are transactional and deterministic, but their lifecycle function is not a general-purpose interpreter."
- [1] https://media.urbit.org/whitepaper.pdf
- [2] "Solid-State Interpreter"