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Operating Systems

Page history last edited by Dmitry Sokolov 3 years, 10 months ago

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https://en.wikipedia.org/wiki/Operating_system

Operating systems
Operating system placement.svgAbout this image
Common features

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware,[1][2] although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers.

The dominant desktop operating system is Microsoft Windows with a market share of around 82.74%. macOS by Apple Inc. is in second place (13.23%), and the varieties of Linux are collectively in third place (1.57%).[3] In the mobile (smartphone and tablet combined) sector, use in 2017 is up to 70% of Google's Android[4] and according to third quarter 2016 data, Android on smartphones is dominant with 87.5 percent and a growth rate 10.3 percent per year, followed by Apple's iOS with 12.1 percent and a per year decrease in market share of 5.2 percent, while other operating systems amount to just 0.3 percent.[5]Linux distributions are dominant in the server and supercomputing sectors. Other specialized classes of operating systems, such as embedded and real-time systems, exist for many applications.


Links  

See also


http://www.dmoz.org/Computers/Software/Operating_Systems/

https://en.wikipedia.org/wiki/Category:Operating_systems

http://www.scholarpedia.org/article/Category:Operating_systems

Subcategories

`    ► Discontinued operating systems (4 C, 169 P)

    ► Operating systems by architecture (4 C, 5 P)

    ► Software by operating system (45 C)

``A

    ► Operating system advocacy (5 P)

`B

    ► Books on operating systems (1 C, 1 P)

``C

    ► Operating system criticisms (9 P)

``E

    ► Educational operating systems (18 P)

    ► Embedded operating systems (9 C, 112 P)

``F

    ► Floppy disk-based operating systems (52 P)

    ► Free software operating systems (10 C, 106 P)

``G

    ► Game console operating systems (13 P)

`J

    ► Just enough operating systems (2 P)

`L

Linux

    ► Lisp-based operating systems (3 P)

`M

    ► Mobile operating systems (12 C, 64 P)

`N

    ► Network operating systems (20 P)

 BIOS

Boot Managers

Consumer Information

Directories

Graphic Subsystems

Guides

History

Programming

Ada

BSD

Capability

Closed Source

Distributed

DOS

Education

Embedded

Extensible

Functional

Handheld

Hybrid Kernel

IBM

Java

Language-based

Lisp

Mainframe

Microkernel

Midrange

Monolithic

Network

Oberon

Object-Oriented

Open Source

Parallel

Persistent

POSIX

Quality of Service

Realtime

Reflective

Research

Single Address Space

Smalltalk

Submicrokernel

TRON

Unix

x86

2K

AIX

Amiga

Amoeba

Amstrad

Android

Apple II

Archy

AtheOS

A-UX

BeOS

ChorusOS

CPM

Croquet

Darwin

Data General

DexOS

DLXOS

DragonFly BSD

DR-DOS

eCos

EPOC16

EPOC32

Erlang

EROS

Firefox OS

FreeBSD

FreeDOS

FreeRTOS

GEOS

GNU Hurd

HP-UX

Inferno

iOS

IRIX

KolibriOS

L4

LynxOS

Mach

MeeGo

MenuetOS

MicroC-OS

`MINIX

ML

MorphOS

MPE

Nemesis

NetBSD

NetWare

NeXT

Nucleus

Open webOS

OpenBSD

OS X

OS-2

OS-400

OS-9

Palm OS

Pick

Plan 9

PRIMOS

PURE

QNX

ReactOS

REAL-32

REBOL-IOS

RISC OS

RTEMS

RxDOS

Sailfish OS

SCO

Self

SkyOS

Solaris

Squeak

Syllable

Symbian

THEOS

ThreadX

TI-99 4A

TinyOS

Tizen

Tru64

TUNES

V2 OS

VMS

VSE

VSTa

VxWorks

Xinu

z-OS

z-VM

`O

    ► Operating system APIs (8 C, 14 P)

    ► Operating system comparisons (11 P)

    ► Operating system distributions bootable from read-only media (3 C, 117 P)

    ► Operating System people (5 C, 2 P)

``P

    ► Proprietary operating systems (18 C, 87 P)

``R

    ► Real-time operating systems (3 C, 101 P)

    ► Robot operating systems (5 P)

    ► ROM-based operating systems (5 P)

``S

    ► Supercomputer operating systems (15 P)

``T

    ► Time-sharing operating systems (1 C, 40 P)

`U

    ► Unix (12 C, 67 P)

`W

    ► Window-based operating systems (7 C, 7 P)

    ► Operating system stubs (4 C, 213 P)

    ► Wikipedia categories named after operating systems (41 C)

Pages

*

`    History of operating systems

    Operating system

    Comparison of operating systems

    List of operating systems

    Timeline of operating systems

    Usage share of operating systems

`B

`    Bare machine

`D

`    Datacenter Operating System

    Distributed operating system

`G

`    Glossary of operating systems terms

    Google Fuchsia

`J

`    Just enough operating system

M

`    MiCO IoT OS

    Mobile operating system

    MS-DOS 5 Beta

`N

`    Network operating system

`Q

`    Quaject

`R

`    Real-time operating system

`S

`    Supercomputer operating systems

`U

`    Uhuru Mobile

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