Data General Nova Machine This machine has 64 KB (32K 16-bit words) of core memory. The hard drive was an optional feature with a capacity of 32 MB. Because the room AC unit alone cannot keep it cool, the hard drive is exposed and must be cooled separately with a fan. The upper half of the machine is largely empty, with that space reserved for peripherals such as paper-tape readers or magnetic-tape drives. You can see 16 light-emitting diodes that display the binary value of each bit in a word. Below these lights are toggle switches for various functions: resetting the machine, running the program, entering a word (one bit at a time), single-stepping the program (incrementing the program counter by one word), and individual bit switches (verified by the lights above). The reset button clears all core memory to zero. The run button starts execution from address 0. The BIOS consists of 13 instructions (26 bytes) that we had to memorize and then toggle into addresses 0–12. We would then press Run to load the paper-tape reel containing the RTOS (resident/physical-memory operating system). Next, we mounted the BASIC language reel, pressed Run again, and finally mounted the application reel. One final Run command started execution, and we waited for the electric typewriter to begin printing the output. ——— Lessons Learned WebAssembly sandboxes in the Elastos World Computer should essentially function as virtual Nova-like machines created on demand. Each digital capsule would contain its own RTOS, language runtime, and application—all bundled together. This approach would turn them into self-contained digital goods capable of running indefinitely, provided they require only minimal memory and CPU instructions (implemented here via WebAssembly). The key lesson is that the operating system—essentially the Internet OS—should not launch applications. Instead, it should launch virtual machines (VMs), one per user and per application. In other words, the operating system and the Internet should be integral parts of the Elastos World Computer rather than optional components installed on top of it—the model we have followed for the past 50 years of the software industry. This is why the system was named ElastOS: the everlasting, last and only, elastic OS. Applications should bring their own language runtime (including an RTOS). This eliminates the need for the VM to support virtual memory, multi-processing, multi-user capabilities, or the traditional separation of hardware peripherals from applications. Those peripherals can simply be implemented as third-party applications, much like digital twins in cyberspace. Furthermore, as AI agents increasingly generate applications on demand via voice commands, it becomes difficult to justify the continued premium pricing of platforms such as Android, iOS, or Windows. The Nova machine inspired Steve Wozniak to design the first Apple computer. By contrast, MS-DOS was developed largely by a single individual, Tim Paterson. I believe the ElastOS Rust core and the various Capsule Runtimes are likewise single-person efforts, and their authenticity can be verified by others. The implications, however, are profound.