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JNode (Java New Operating System Design Effort), written 99% in Java (native compiled), provides own JVM and JIT compiler. Based on GNU Classpath. [37] [38] JX Java operating system that focuses on a flexible and robust operating system architecture developed as an open source system by the University of Erlangen. KERNAL (default OS on ...
This is an operating system in which the time taken to process an input stimulus is less than the time lapsed until the next input stimulus of the same type. Name
A hobby operating system may be classified as one whose code has not been directly derived from an existing operating system, and has few users and active developers. [ 131 ] In some cases, hobby development is in support of a " homebrew " computing device, for example, a simple single-board computer powered by a 6502 microprocessor .
DOS is a single-user, single-tasking operating system with basic kernel functions ... Some TSRs can even perform a rudimentary form of task switching. For example, ...
Mac OS X 10.0 was a radical departure from the classic Mac OS and was Apple's long-awaited answer for a next generation Macintosh operating system. It introduced a brand new code base completely separate from Mac OS 9 's as well as all previous Apple operating systems, and had a new Unix-like core, Darwin , which features a new memory ...
SOS is a single-tasking single-user operating system. It makes the resources of the Apple III available in the form of a menu-driven utility program as well as a programming application programming interface (API). A single program is loaded at boot time, called the interpreter.
Typically some code in the nucleus runs in the context of a dispatching unit, e.g., address space, process, task, thread, while other code runs independent of any dispatching unit. In contemporary operating systems unprivileged applications cannot alter the nucleus.
Possibly the earliest preemptive multitasking OS available to home users was Microware's OS-9, available for computers based on the Motorola 6809 such as the TRS-80 Color Computer 2, [8] with the operating system supplied by Tandy as an upgrade for disk-equipped systems. [9] Sinclair QDOS on the Sinclair QL followed in 1984, but it was not a ...