Upstart (software)
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Upstart (software)
Upstart was an event-based replacement for the traditional init daemon—the method by which several Unix-like computer operating systems perform tasks when the computer is started. It was written by Scott James Remnant, a former employee of Canonical Ltd. In 2014, Upstart was placed in maintenance mode, and other init daemons, such as systemd, were recommended in place of Upstart. Ubuntu moved away from Upstart with the release of version 15.04 (''Vivid Vervet'') in favor of migrating to systemd. As of January 2022, there have been no updates released for Upstart since September 2014. Rationale The traditional init process was originally only responsible for bringing the computer into a normal running state after power-on, or gracefully shutting down services prior to shutdown. As a result, the design is strictly synchronous, blocking future tasks until the current one has completed. Its tasks must also be defined in advance, as they are limited to this prep or cleanup func ...
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Scott James Remnant
Scott James Remnant (born 18 July 1980) is an open source software engineer. Scott served as a long-time Debian developer until 2006 and worked as "Ubuntu Developer Manager" on the Ubuntu Linux distribution at Canonical Ltd. He now works at Google as a Technical Lead on Bluetooth Systems. Work * Ran the Linux humor website Segfault.org * While a Debian developer, Scott maintained several important packages, notably libtool and dpkg * Is the author of the Upstart initialization system * Developed the Planet weblog aggregation system * He served on the Ubuntu Technical Board until October 2011 Personal life Scott is openly gay, and believes it important to be open about it to support others in the open source community. References External links Interview with Remnantby FOSDEM Free and Open source Software Developers' European Meeting (FOSDEM) is a non-commercial, volunteer-organized European event centered on free and open-source software development. It is aimed at d ...
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Firmware
In computing, firmware is a specific class of computer software that provides the low-level control for a device's specific hardware. Firmware, such as the BIOS of a personal computer, may contain basic functions of a device, and may provide hardware abstraction services to higher-level software such as operating systems. For less complex devices, firmware may act as the device's complete operating system, performing all control, monitoring and data manipulation functions. Typical examples of devices containing firmware are embedded systems (running embedded software), home and personal-use appliances, computers, and computer peripherals. Firmware is held in non-volatile memory devices such as ROM, EPROM, EEPROM, and flash memory. Updating firmware requires ROM integrated circuits to be physically replaced, or EPROM or flash memory to be reprogrammed through a special procedure. Some firmware memory devices are permanently installed and cannot be changed after manufacture. C ...
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Ubuntu Touch
Ubuntu Touch is a mobile version of the Ubuntu operating system, being developed by the UBports community. Its user interface is written in Qt, and is designed primarily for touchscreen mobile devices such as smartphones and tablet computers, but the original goal of convergence was intended to bring Ubuntu Touch to laptops, desktops, IOT devices and TVs for a complete unified user experience. The project was started by Canonical Ltd. but Mark Shuttleworth announced that Canonical would terminate support due to lack of market interest on 5 April 2017. It was then adopted by UBports as a community project. The UBports project was seeded by Marius Gripsgard in 2015 and the source code was transferred to the UBports Foundation where it now resides. UBports' mission is to support the collaborative development of Ubuntu Touch and to promote its widespread use. History The Ubuntu Touch project was started in 2011. Mark Shuttleworth announced on that by Ubuntu 14.04, the goal wa ...
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Mark Shuttleworth
Mark Richard Shuttleworth (born 18 September 1973) is a South African and British entrepreneur who is the founder and CEO of Canonical, the company behind the development of the Linux-based Ubuntu operating system. In 2002, Shuttleworth became the first South African to travel to space as a space tourist, and the first African from an independent country to travel to space. He lives on the Isle of Man and holds dual citizenship from South Africa and the United Kingdom. According to the ''Sunday Times Rich List'' in 2020, Shuttleworth is worth an estimated £500 million. Early life Shuttleworth was born in Welkom, Free State, South Africa, to a surgeon and a nursery-school teacher, Shuttleworth attended school at Western Province Preparatory School (where he eventually became Head Boy in 1986), followed by one term at Rondebosch Boys' High School, and then at Bishops/Diocesan College, where he was Head Boy in 1991. Shuttleworth obtained a Bachelor of Business Science degree in ...
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Ubuntu (operating System)
Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: ''Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All the editions can run on the computer alone, or in a virtual machine. Ubuntu is a popular operating system for cloud computing, with support for OpenStack. Ubuntu's default desktop changed back from the in-house Unity to GNOME after nearly 6.5 years in 2017 upon the release of version 17.10. Ubuntu is released every six months, with long-term support (LTS) releases every two years. , the most-recent release is 22.10 ("Kinetic Kudu"), and the current long-term support release is 22.04 ("Jammy Jellyfish"). Ubuntu is developed by British company Canonical, and a community of other developers, under a meritocratic governance model. Canonical provides security updates and support for each Ubuntu release, starting from the release date and unt ...
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List Of Debian Releases
Debian releases do not follow a fixed schedule. Recent releases have been made roughly biennially by the Debian Project. The most recent version of Debian is Debian version 11, codename "Bullseye". The next up and coming release of Debian is Debian 12 codename "Bookworm". Debian always has at least three release branches active at any time: "stable", "testing" and "unstable". The stable release is the most recent and up-to-date version of Debian. The testing release contains packages that have been tested from unstable. Testing has significantly more up-to-date packages than stable and is a close version of the future release candidate for stable. The unstable release (also known as sid) is the release where active development takes place. It is the most volatile version of Debian. When the Debian stable branch is replaced with a newer release, the current stable becomes an "oldstable" release. When the Debian stable branch is replaced again, the oldstable release becomes the "o ...
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Debian
Debian (), also known as Debian GNU/Linux, is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project, which was established by Ian Murdock on August 16, 1993. The first version of Debian (0.01) was released on September 15, 1993, and its first stable version (1.1) was released on June 17, 1996. The Debian Stable branch is the most popular edition for personal computers and servers. Debian is also the basis for many other distributions, most notably Ubuntu. Debian is one of the oldest operating systems based on the Linux kernel. The project is coordinated over the Internet by a team of volunteers guided by the Debian Project Leader and three foundational documents: the Debian Social Contract, the Debian Constitution, and the Debian Free Software Guidelines. New distributions are updated continually, and the next candidate is released after a time-based freeze. Since its founding, Debian has been developed openly ...
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ChromiumOS
ChromiumOS is a free and open-source operating system designed for running web applications and browsing the World Wide Web. It is the open-source version of ChromeOS, a Linux-based operating system made by Google. Like ChromeOS, ChromiumOS is based on the Linux kernel, but its principal user interface is the Chromium web browser rather than the Google Chrome browser. ChromiumOS also includes the Portage package manager, which was originally developed for Gentoo Linux. Because ChromiumOS and ChromeOS use a web browser engine for the user interface, they are oriented toward web applications rather than desktop applications or mobile apps. Google first published the ChromiumOS source code in late 2009. Architecture Chromium's architecture is three-tiered, consisting of "three major components": * The Chromium-based browser and the window manager * System-level software and user-land services: the Linux kernel, drivers, connection manager, and so on * Firmware at least 3 years ...
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ChromeOS
ChromeOS, sometimes stylized as chromeOS and formerly styled as Chrome OS, is a Linux-based operating system designed by Google. It is derived from the open-source ChromiumOS and uses the Google Chrome web browser as its principal user interface. Google announced the project in July 2009, initially describing it as an operating system where applications and user data would reside in the Cloud computing, cloud. ChromeOS was used primarily to run web applications. All ChromiumOS and ChromeOS versions support progressive web applications (such as Google Docs or Microsoft Office 365), as well as web browser extensions (which can resemble native applications). ChromeOS (but not ChromiumOS) from 2016 onwards can also run Android (operating system), Android applications from the Google Play Store, Play Store. Since 2018, ChromiumOS/ChromeOS version 69 onwards also support Linux applications, which are executed in a lightweight virtual machine with a Debian Linux environment. The ope ...
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Google
Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. It has been referred to as "the most powerful company in the world" and one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the area of artificial intelligence. Its parent company Alphabet is considered one of the Big Five American information technology companies, alongside Amazon, Apple, Meta, and Microsoft. Google was founded on September 4, 1998, by Larry Page and Sergey Brin while they were PhD students at Stanford University in California. Together they own about 14% of its publicly listed shares and control 56% of its stockholder voting power through super-voting stock. The company went public via an initial public offering (IPO) in 2004. In 2015, Google was reor ...
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Linux Kernel
The Linux kernel is a free and open-source, monolithic, modular, multitasking, Unix-like operating system kernel. It was originally authored in 1991 by Linus Torvalds for his i386-based PC, and it was soon adopted as the kernel for the GNU operating system, which was written to be a free (libre) replacement for Unix. Linux is provided under the GNU General Public License version 2 only, but it contains files under other compatible licenses. Since the late 1990s, it has been included as part of a large number of operating system distributions, many of which are commonly also called Linux. Linux is deployed on a wide variety of computing systems, such as embedded devices, mobile devices (including its use in the Android operating system), personal computers, servers, mainframes, and supercomputers. It can be tailored for specific architectures and for several usage scenarios using a family of simple commands (that is, without the need of manually editing its source code ...
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Linux Distribution
A Linux distribution (often abbreviated as distro) is an operating system made from a software collection that includes the Linux kernel and, often, a package management system. Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices (for example, OpenWrt) and personal computers (for example, Linux Mint) to powerful supercomputers (for example, Rocks Cluster Distribution). A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System, or, more recently, Wayland), a window manager, and a desktop environment. Most of the included software is free and open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Usually, Linux distributions optionally include some proprietary so ...
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