operating system for mobile devices. It consists of Android Runtime (userland) with Linux (kernel), with its Linux kernel modified to add drivers for mobile device hardware and to remove unused Vanilla Linux drivers. gLinux, a Linux distribution that Google uses internally Fuchsia is a capability-based, real-time, operating system (RTOS) scalable to universal devices, in early development, from the tiniest embedded hardware, wristwatches, tablets to the largest personal computers. Unlike ChromeOS and Android, it is not based on the Linux kernel, but instead began on a new microkernel called "Zircon", derived from "Little Kernel". Wear OS a version of Google's Android operating system designed for smartwatches and other wearables. Green Hills Software INTEGRITY – Reliable Operating system INTEGRITY-178B – A DO-178B certified version of INTEGRITY. µ-velOSity – A lightweight microkernel. Harris Computer Systems Vulcan O/S – Proprietary O/S for Harris Computer Systems (HCX) CX/UX – Proprietary UNIX based OS for Harris' computers (MCX) Heathkit, Zenith Data Systems HDOS – ran on the H8 and Heath/Zenith Z-89 series HT-11 – a modified version of RT-11 that ran on the Heathkit H11 Hewlett-Packard, Hewlett Packard Enterprise HP Multi-Programming Executive (MPE, MPE/XL, and MPE/iX) – runs on HP 3000 and HP e3000 mini-computers HP-UX – runs on HP9000 and Itanium servers (from small to mainframe-class computers) Honeywell CP-6 Huawei HarmonyOS LiteOS EulerOS Intel Corporation iRMX – real-time operating system originally created to support the Intel 8080 and 8086 processor families in embedded applications. ISIS, ISIS-II – "Intel Systems Implementation Supervisor" was an environment for development of software within the Intel microprocessor family in the early 1980s on their Intellec Microcomputer Development System and clones. ISIS-II worked with 8 inch floppy disks and had an editor, cross-assemblers, a linker, an object locator, debugger, compilers for PL/M, a BASIC interpreter, etc. and allowed file management through a console. iMAX 432 - operating system for systems based on Intel's iAPX 432 architecture. IBM On early mainframes: 1410, 7010, 704, 709, 7090, 7094, 7040, 7044, 7030 BESYS – for the IBM 7090 Compatible Time-Sharing System (CTSS) – developed at MIT's Computation Center for use on a modified IBM 7094 FORTRAN Monitor System (FMS) – for the IBM 709 and 7090 GM OS & GM-NAA I/O – for the IBM 704 IBSYS – tape based operating system for IBM 7090 and IBM 7094 7040/7044 Operating System (16/32K) - 7040-PR-150 IJMON – A bootable serial I/O monitor for loading programs