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The usage share of an operating system is the percentage of computers running that operating system (OS). These statistics are estimates as wide scale OS usage data is difficult to obtain and measure. Reliable primary sources are limited and data collection methodology is not formally agreed.
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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 ...
The article "Usage share of operating systems" provides a broader, and more general, comparison of operating systems that includes servers, mainframes and supercomputers. Because of the large number and variety of available Linux distributions , they are all grouped under a single entry; see comparison of Linux distributions for a detailed ...
DNS—Domain Name System; DOA—Dead on Arrival; DOCSIS—Data Over Cable Service Interface Specification; DOM—Document Object Model; DORA—Discover, Offer, Request, Acknowledge; DoS—Denial of Service; DOS—Disk Operating System; DP—Dot Pitch; DPC—Deferred Procedure Call; DPI—Deep packet inspection; DPI—Dots per inch; DPMI—DOS ...
The operating system provides an interface between an application program and the computer hardware, so that an application program can interact with the hardware only by obeying rules and procedures programmed into the operating system. The operating system is also a set of services which simplify development and execution of application programs.
That trend was partly responsible for a move away from the in-house Cray Operating System to UNICOS system based on Unix. [2] In 1985, the Cray-2 was the first system to ship with the UNICOS operating system. [12] Around the same time, the EOS operating system was developed by ETA Systems for use in their ETA10 supercomputers. [13]
Pick operating system; SIPROS 66 (Simultaneous Processing Operating System) [6] THE multiprogramming system (Technische Hogeschool Eindhoven) development; TSOS (later VMOS) 1966 DOS/360 (IBM's Disk Operating System) GEORGE 1 & 2 for ICT 1900 series; Mod 1 [7] Mod 2 [8] Mod 8 [9] MS/8 (Richard F. Lary's DEC PDP-8 system) MSOS (Mass Storage ...