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Operating Systems Database
| Total OS in database (26 December 2024) : 2765 |
| Corresponding OS from query : 180 |
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Name
|
Year
|
Description | Platform | Company | Link |
D-68 | 1968 | Dispatcher-68. First operating system for the BESM-6 computer. | BESM-6 | ITMiVT RAS, Russia |  |
DAPS | 1960s | Direct Access Programming System. | General Electric GE-400 | Bull-General Electric, USA | |
Darwin | 2001 | Open-source Unix-like operating system. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, Mach, and other free software projects. | x86-64, 64-bit ARM, PowerPC, IA-32, 32-bit ARM | Apple, USA | |
Data ONTAP | 1992 | ONTAP or Data ONTAP or Clustered Data ONTAP (cDOT) or Data ONTAP 7-Mode is NetApp's proprietary operating system used in storage disk arrays such as NetApp FAS and AFF (also known as NetApp Filer), ONTAP Select and Cloud Volumes ONTAP. | IA-32, Alpha, MIPS, x86-64 with ONTAP 8 and higher | NetApp, USA | |
Datapac Multiuser DOS | 1990s | DataPac version of Multiuser DOS. | - | DataPac Australasia, Australia | |
Datapac System Manager | 1996 | Derivative of Datapac Multiuser DOS. | - | DataPac Australasia, Australia | |
DBLDOS | 1981< | Operating system for the Tandy TRS-80. Simple updates to TRSDOS to support the Percom double-density board. | Tandy TRS-80 | Percom Data, USA | - |
DBOS-16 | 1970 | Disk Based Operating System. For General Automation SPC-16 & System 18/30. | General Automation SPC-16 & System 18/30 | General Automation, USA | - |
DCN | 1975 | Operating system for a distributed network of PDP-11 virtual machines at the University of Maryland. | DEC PDP-11 | David Mills, USA | |
DC/Osx | 1990s | DataCenter/OSx for Pyramid's MIPS-based systems. Was the first symmetric multiprocessing (SMP) implementation on Unix System V Release 4. DC/OSx was superseded by the SINIX operating system. | Pyramid | Pyramid Technology, USA | |
DC/UX | 1990s | Operating system for Omron workstations. | Omron LUNA | Japan | - |
DD-WRT | 2005 | Linux-based firmware for wireless routers and access points. | Linksys routers | - | |
 Debian (9 versions) | 1993 | Unix-like operating system composed entirely of free software packaged by a team of volunteers. | amd64, ia64, i386, arm64, armel, armhf, mipsel, ppc64, IBM S/390x, z/Architecture, RISC-V | - | |
Dell Real Mode Kernel (DRMK) | 2000s | Dell Real Mode Kernel. close to MS-DOS and PC-DOS. OS used when booting to the Restore or Utility partitions on recent Dell systems. | - | Dell, USA | - |
| DEMOS (1) (1 versions) | 1970c | Message-based OS for the CRAY-1. | Cray-1 | Los Alamos, USA | - |
DEMOS (2) | 1982 | Dialogovaya Edinaya Mobilnaya Operatsionnaya Sistema. MNOS alternative. | SM-4, Elektronika-1082, BESM, ES EVM, SM-1700, IBM PC compatibles | Kurchatov Institute of Atomic Energy, DEMOS Co-operative, Russia | |
Denali | 2000s | Kernel for multiplexing virtual machines. | - | University of Washington, USA | |
Deos Time & Space Partitioned | 1998 | Certified to DO-178B, Level A since 1998. | x86, PowerPC, MIPS | DDC-I, USA | |
DES RT | 1980s | Real-time, Unix-like OS for 16-bit microprocessor families and Micro-Vax, DGC MV series. | Micro-Vax, DGC MV series | Destek Group, USA | - |
DeskMate | 1984 | Operating system introduced with the Tandy 1000 computer. | Tandy 1000 | Tandy, USA | - |
DesktopBSD | 2005 | Unix-derivative, desktop-oriented operating system based on FreeBSD. | - | Peter Hofer, Daniel Seuffert, Austria | |
DESQview | 1985 | Text mode multitasking operating environment. | IBM PC compatibles | Quarterdeck, USA | |
| DESQview + (1 versions) | 1980s | QEMM 386 multi-tasking user interface. | IBM PC compatibles | Quarterdeck, USA | - |
DESQView/X | 1980s | X-windowing GUI. | - | Quarterdeck, USA | |
DEX | 2000s | Extensible operating system (dex-os). Educational operating system that supports a plug-in like architecture and aims to achieve zero static inter-module calls. | - | - | |
Dex4U | 2004 | Fast 32bit pmode operating system for the PC (Intel, AMD, etc.). Everything in this operating system is focused on speed: the architecture, it's avoidance of virtualization, and it is completely written in assembly. | x86 | - | |
DexOS | 2012 | 32-bit operating system written in x86 assembly. | 32-bit x86 ARM | - | |
DF-DOS | 2000s | Real mode OS (similar to XOA-DOS). Built using NASM for x86 (386+) CPU's. And designed for normal floppy disks. Source available and some tutorials/documents. Main purpose of the site is to initally learn about OS development rather than commercial or linux like use. | x86 | - | |
DG/UX | 1985 | Unix operating system. | Eclipse MV minicomputer line, AViiON workstation and server line | Data General, USA | |
DIAMS-2 | 1980s | Database dialog OS for SMEP computers. | SMEP | Russia | - |
Digital UNIX | 1995 | Old name for Tru64 UNIX. Derived from OSF/1, became HP's Tru64 UNIX. | - | DEC, USA | - |
DilOS | 2000s | Illumos based platform (Solaris). | x86-64, SPARC | - | |
DioneOS | 2011 | Multitasking preemptive, real-time operating system. The system is designed for Texas Instruments MSP430x microcontrollers. | TI MSP430, MSP430x | EleSoftRom, Poland | |
DIP DOS | 1989 | Operating system for the Atari Portfolio. | Atari Portfolio | DIP, Canada | - |
DIPS-0 | 1970 | Operating system for the DIPS Time-Sharing System (TSS) of NTT. | - | NTT, Japan | |
DIPS-0 BASIC | 1969 | Was the first prototype system of the DIPS series. | Hitachi HITAC 8400 | NTT, Japan | - |
| DIPS-100 (6 versions) | 1969 | Operating system for the DIPS Time-Sharing System (TSS) of NTT. | - | NTT, Japan | - |
DISPAK | 1971 | Dispetcher Paketov. Operating system for the BESM-6 computer. Used in Atomic research. | BESM-6 | ITMiVT RAS, Russia | |
Distortos | 2000s | Object-oriented C++ RTOS for microcontrollers. | ARM | - | |
DISTOS | 1970s | Distributed OS for a network of 68000s. | 68000 | USA | - |
DISTRIX | 1989 | Message-based distributed version of Unix. | - | University of Cape Town, USA | - |
DJS200/XT1 | 1978c | Operating system for the Chinese DJS210 and DJS220. Multiprogrammed and deadlock-free. | DJS-210 & DJS-220 | China | - |
DMERT | 1980s | Duplex Multi Environment Real Time. Operating system for the AT&T 3B20D telephone switching minicomputer, designed for high availability. DMERT was later renamed Unix RTR (Real-Time Reliable). | AT&T 3B20D | Bell Labs, USA | - |
| DMS (1) (1 versions) | 1960s | Disk Monitor System. Single-task batch-oriented system. | IBM 1130 | IBM, USA | |
DMS (2) | 1974< | Disk Monitor System for General Automation System 18/30. | General Automation System 18/30 | USA | - |
DMS (3) | 1986 | Disk Management System. | - | AT&T, USA | - |
DNA-OS | 2000s | Kernel-mode lightweight operating system for Multiprocessor System on a Chip developped to supersede MutekA. | ARM, MIPS, Sparc V8 | France | |
DNEPR-2 | 1972 | Time-sharing operating system for the DNEPR-2. | DNEPR-2 | Russia | - |
DNIX | 1983 | Unix-like real-time operating system. | 68000 | Dataindustrier, Sweden | |
DNOS (1) | 1973> | Distributed Network Operating System. General purpose, multitasking operating system designed to operate with the Texas Instruments 990/10, 990/10A and 990/12 minicomputers. | TI-990 | Texas Instruments, USA | |
DNOS (2) | 1980s | Operating system for NCR computers. | NCR computers | USA | - |
DNS | 1970s | Distributed Network System. The operating system of the DSA Datanet processor. | Bull Datanet | - | - |
dnx RTOS | 2000s | Small general purpose real-time operating system based on the FreeRTOS kernel. | ARM Cortex-M3, STM32 | Daniel Zorychta, Poland | |
Dolphin | 1990s | Robust, reliable, fast multi-tasking operating system. Highly configurable to the user's needs. | IBM PC compatibles | Samuel A. Falvo II, Portugal | |
| Domain/OS (9 versions) | 1981 | One of the first network-based systems. Run on Apollo/Domain hardware. Later bought by Hewlett-Packard. | Appollo, Domain workstations | Apollo Computer, USA | |
DoOrS | 2000s | Operating system created for educational purposes. | - | A.Baranovskis, A.Ruckij, V.Birbilas, Lituania | |
DOS (1) | 1960s | Disk Operating System for RCA Spectra 70 series. | RCA Spectra 70 series | USA | - |
| DOS (2) (8 versions) | 1970s | Family of disk operating systems. | - | - | |
DOS (3) | 1972< | Disk Operating System. | Interdata, Lockheed computers, HP-2100; Datapoint 1100, 2200, 5500, DEC PDP-11; Prime 100,200,300, Four-Phase System IV, GEC Computers, Computer Automation computers | USA | - |
DOS 3.3 | 1980s | Standard OS for Apple II Computers. | Apple II | Apple, USA | - |
DOS (4) | 1970s | DOS Intel 808x/80x86-based, Disk Operating Systems for desktop systems. Capable of up to 32 users per node. Supported a sophisticated network of nodes that were often purpose-built. The name DOS was used in these products login screens before it was popularized by IBM, Microsoft and others. | i808x/i80x86 | DataPoint, USA | - |
DOS (5) | 1970s | Disk Operating System. For real-time systems, providing a filesystem and swapping facilities. | GEC 4000 series | GEC Computers, UK | |
DOS Plus | 1985 | Single-user, multi-tasking system derived from Concurrent DOS 4.1 – 5.0. | - | Digital Research, USA | |