KolibriOS is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

for

x86 x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel, based on the 8086 microprocessor and its 8-bit-external-bus variant, the 8088. Th ...

computers, written completely in

FASM FASM (''flat assembler'') is an assembler for x86 processors. It supports Intel-style assembly language on the IA-32 and x86-64 computer architectures. It claims high speed, size optimizations, operating system (OS) portability, and macro abi ...

assembly language In computing, assembly language (alternatively assembler language or symbolic machine code), often referred to simply as assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence bet ...

. It has been developed since 2004, forked from MenuetOS, and supports

i586 The Pentium (also referred to as the i586 or P5 Pentium) is a microprocessor introduced by Intel on March 22, 1993. It is the first CPU using the Pentium brand. Considered the fifth generation in the x86 (8086) compatible line of processors, s ...

CPUs A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary Processor (computing), processor in a given computer. Its electronic circuitry executes Instruction (computing), instructions ...

or newer. KolibriOS is small sized and fits on a single 3.5" floppy disk; despite this, it features a full

graphical user interface A graphical user interface, or GUI, is a form of user interface that allows user (computing), users to human–computer interaction, interact with electronic devices through Graphics, graphical icon (computing), icons and visual indicators such ...

preemptive multitasking In computing, preemption is the act performed by an external scheduler — without assistance or cooperation from the task — of temporarily interrupting an executing task, with the intention of resuming it at a later time. This preemptive sc ...

, networking capabilities, and many pieces of bundled software. The name "Kolibri" is the Slavic word for

hummingbird Hummingbirds are birds native to the Americas and comprise the Family (biology), biological family Trochilidae. With approximately 366 species and 113 genus, genera, they occur from Alaska to Tierra del Fuego, but most species are found in Cen ...

and symbolizes the operating system's tiny size and fast speed.

Development

KolibriOS was forked from MenuetOS, a similar operating system that was built in 32-bit and 64-bit editions. It attracted much popularity in Russia and a number of other countries in the region, leading to a community contributing to the project. The first version of KolibriOS, meant to be a driver fix for the Russian-language distribution, was released by Marat Zakiyanov "mario79" in 2004. Shortly after the start of the KolibriOS project, MenuetOS's developer decided to only focus on the 64-bit version, which unlike its 32-bit counterpart was

closed source Proprietary software is software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the recipient from freely sharing the software or modi ...

. KolibriOS on the other hand has only been developed in 32-bit and remains open source. KolibriOS has been developed by a number of contributors from different countries including Russia, Kazakhstan, Ukraine, Belarus, Uzbekistan, Moldova, Estonia, Germany and Belgium. Distribution assembly is handled by Evgeny Grechnikov or "Diamond". There are two development branches: KolibriACPI, which has extended

ACPI Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto con ...

support, and Kolibri-A, an

exokernel Exokernel is an operating system kernel developed by the MIT Parallel and Distributed Operating Systems group, and also a class of similar operating systems. Operating systems generally present hardware resources to applications through high-le ...

version of KolibriOS optimized for embedded applications and hardware engineering; only few AMD APU-based platforms are currently supported.

Features

Due to its small size (most distributions will fit on a single 1.44 MB

floppy disk A floppy disk or floppy diskette (casually referred to as a floppy, a diskette, or a disk) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a ...

image) and being written in assembly, the OS boots in only a few seconds on various devices. It has support for booting from

NTFS NT File System (NTFS) (commonly called ''New Technology File System'') is a proprietary journaling file system developed by Microsoft in the 1990s. It was developed to overcome scalability, security and other limitations with File Allocation Tabl ...

Ext2 ext2, or second extended file system, is a file system for the Linux kernel (operating system), kernel. It was initially designed by French software developer Rémy Card as a replacement for the extended file system (ext). Having been designed ...

/ 3/ 4, FAT12/16/32,

exFAT exFAT (Extensible File Allocation Table) is a file system optimized for flash memory such as USB flash drives and SD cards, that was introduced by Microsoft in 2006. exFAT was proprietary until 28 August 2019, when Microsoft published its spe ...

, and ISO9660 based disks and can also boot from

Coreboot coreboot, formerly known as LinuxBIOS, is a software project aimed at replacing proprietary firmware (BIOS or UEFI) found in most computers with a lightweight firmware designed to perform only the minimum number of tasks necessary to load and r ...

and

Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

. KolibriOS has a

based on, and optimised for

VESA VESA (), formally known as Video Electronics Standards Association, is an American standards organization, technical standards organization for computer display standards. The organization was incorporated in California in July 1989To retrieve ...

. It features pre-emptive multitasking, streams, and parallel execution of

system call In computing, a system call (syscall) is the programmatic way in which a computer program requests a service from the operating system on which it is executed. This may include hardware-related services (for example, accessing a hard disk drive ...

s. It has built-in application software (more than 250) such as a word processor, image viewer, music player, and

web browser A web browser, often shortened to browser, is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's scr ...

, as well as a

code editor A source-code editor is a text editor program designed specifically for editing source code of computer programs. It may be a standalone application or it may be built into an integrated development environment (IDE). Features Source-code editor ...

with an integrated macro assembler (

). KolibriOS features a

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses Science Biology * Seashell, a hard outer layer of a marine ani ...

supporting various common commands used on

Unix-like A Unix-like (sometimes referred to as UN*X, *nix or *NIX) operating system is one that behaves in a manner similar to a Unix system, although not necessarily conforming to or being certified to any version of the Single UNIX Specification. A Uni ...

systems.

Supported hardware

USB Universal Serial Bus (USB) is an industry standard, developed by USB Implementers Forum (USB-IF), for digital data transmission and power delivery between many types of electronics. It specifies the architecture, in particular the physical ...

1.1 and 2.0 are supported (UHCI, OHCI and EHCI). There is also support for USB hubs, although the only USB HID devices supported include keyboard, mouse and USB flash drives. Internal hard disks with PATA/IDE and

SATA SATA (Serial AT Attachment) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives. Serial ATA succeeded the earlier Parallel ATA (PATA) standard ...

AHCI The Advanced Host Controller Interface (AHCI) is a technical standard defined by Intel that specifies the Hardware register, register-level interface of Serial ATA (SATA) host controllers in a non-implementation-specific manner in its Intel chip ...

interfaces are supported natively. Supported file systems include

FAT12 File Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. Originally developed in 1977 for use on floppy disks, it was adapted for use on ...

FAT16 File Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. Originally developed in 1977 for use on floppy disks, it was adapted for use on Ha ...

FAT32 File Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. Originally developed in 1977 for use on floppy disks, it was adapted for use on ...

ext2 ext2, or second extended file system, is a file system for the Linux kernel (operating system), kernel. It was initially designed by French software developer Rémy Card as a replacement for the extended file system (ext). Having been designed ...

ext3 ext3, or third extended filesystem, is a journaling file system, journaled file system that is commonly used with the Linux kernel. It used to be the default file system for many popular Linux distributions but generally has been supplanted by ...

and

ext4 ext4 (fourth extended filesystem) is a journaling file system for Linux, developed as the successor to ext3. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by Cluster File Systems for ...

(partially),

(no extended functions such as encryption), read-only

XFS XFS is a high-performance 64-bit journaling file system created by Silicon Graphics, Inc (SGI) in 1993. It was the default file system in SGI's IRIX operating system starting with its version 5.3. XFS was ported to the Linux kernel in 2001; a ...

, CDFS (including multisession). KolibriOS supports the full

TCP/IP The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...

stack and certain

Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...

network cards.

Intel High Definition Audio Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard, but it ...

is supported on certain motherboards while

AC'97 AC'97 (''Audio Codec '97;'' also MC'97 for ''Modem Codec '97'') is an audio codec standard developed by Intel Architecture Labs and various codec manufacturers in 1997. The standard was used in motherboards, modems, and sound cards. The specif ...

codec A codec is a computer hardware or software component that encodes or decodes a data stream or signal. ''Codec'' is a portmanteau of coder/decoder. In electronic communications, an endec is a device that acts as both an encoder and a decoder o ...

support exists for various

chipset In a computer system, a chipset is a set of electronic components on one or more integrated circuits that manages the data flow between the processor, memory and peripherals. The chipset is usually found on the motherboard of computers. Chips ...

s including: Intel,

nForce nForce is a motherboard chipset created by Nvidia originally for AMD Athlon and Duron, with later revisions also supporting contemporary Intel processors. The chipset shipped in 3 varieties; 220, 415, and 420. 220 and 420 are very similar with e ...

nForce2 The Nvidia nForce2 chipset was released by Nvidia in July 2002 as a refresh to the original nForce product offering. The nForce2 chipset was a platform for motherboards supporting AMD's Socket A CPUs along with DDR SDRAM. There were multiple ...

nForce3 The nForce3 chipset was created by Nvidia as a Media and Communications Processor. Specifically, it was designed for use with the Athlon 64 processor. Features of the nForce3 When the Athlon 64 was launched, the Nvidia nForce3 Pro150 and ...

, nForce4, SIS7012, FM801, VT8233, VT8233C, VT8235, VT8237, VT8237R, VT8237R Plus and EMU10K1X. Video is claimed to work on any card and drivers are available for specific Intel or AMD cards. System requirements are: *

-compatible

CPU A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...

(with slight changes can run on i486 machine) * 8 MB of

RAM Ram, ram, or RAM most commonly refers to: * A male sheep * Random-access memory, computer memory * Ram Trucks, US, since 2009 ** List of vehicles named Dodge Ram, trucks and vans ** Ram Pickup, produced by Ram Trucks Ram, ram, or RAM may also ref ...

-compatible

graphics card A graphics card (also called a video card, display card, graphics accelerator, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a displa ...

* 1.44 MB 3.5" floppy drive,

hard disk drive A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating hard disk drive platter, pla ...

USB flash drive A flash drive (also thumb drive, memory stick, and pen drive/pendrive) is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc, and u ...

CD-ROM A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains computer data storage, data computers can read, but not write or erase. Some CDs, called enhanced CDs, hold b ...

drive * Keyboard and mouse ( COM, PS/2 or

)

Reception

In a 2009 review piece on alternative operating systems, ''

TechRadar ''TechRadar'' is an online technology publication owned by Future plc. It has editorial teams in the United States, United Kingdom, and Australia that provide news and reviews of tech products and gadgets. It was launched in 2008 and expanded t ...

'' called it "tremendously impressive", noting its performance and streamlined

codebase In software development, a codebase (or code base) is a collection of source code used to build a particular software system, application, or software component. Typically, a codebase includes only human-written source code system files; thu ...

. ''Dedoimedo.com'' reviewed KolibriOS in 2012: Jesse Smith from DistroWatch Weekly wrote the following review about KolibriOS in 2009: In 2024, Simon Batt of

XDA Developers Valnet, Inc. is a Canadian media company established in August 2012 by Hassan and Sam Youssef in Montreal, Quebec. It operates primarily in the entertainment media industry, where it has sought to acquire producers of content in this space. In ...

wrote that KolibriOS is "charming" and that it is "perfect" for giving new life to older PCs.

References

External links

* * {{Real-time operating systems Floppy disk-based operating systems Free software operating systems Assembly language software X86 operating systems Lightweight Unix-like systems Hobbyist operating systems