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Phantom OS is an operating system mostly made by Russian programmers. Phantom OS is based on a concept of persistent virtual memory, and is managed-code oriented. Phantom OS is one of a few OSes that are not based on classical concepts of Unix-like systems. Its primary goal is to achieve simplicity and effectiveness in both the operating system and applications at the same time. Phantom is based on the principle that "Everything is an object", in contrast to the Unix-like approach of "Everything is a file". == Basics == Managed code: Memory protection on object level, rather than on process level; absence of pointer arithmetic in managed code avoids many problems that are present in unmanaged code. Global address space: Very effective and inexpensive IPC. Single (flat) address space allows transfer of objects from one process (application) to another been done by transferring links to that object. Security is achieved through the absence of pointer arithmetic and the inability of an application to get linked to an object other than by calling a public method. Persistence: Application code does not see OS restarts and could live forever—this makes the concept of a file obsolete and any variable or data structure could be stored forever and at the same time be available directly through a pointer. Differently from hibernation that is done in other OSs, persistence lies in the very core principles of the Phantom OS core. It is done transparently for applications; in most cases it does not require re-programming of an application. Persistence stays even if the computer crashes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phantom OS」の詳細全文を読む スポンサード リンク
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