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113-575: Frederick "Frits" Zernike was born on 16 July 1888 in Amsterdam , Netherlands to Carl Friedrich August Zernike and Antje Dieperink. Both parents were teachers of mathematics, and he especially shared his father's passion for physics. In 1905 he enrolled at the University of Amsterdam , studying chemistry (his major), mathematics and physics. In 1912, he was awarded a prize for his work on opalescence in gases. In 1913, he became assistant to Jacobus Kapteyn at

226-527: A Wayland compositor such as Sway , KDE 's KWin , or GNOME 's Mutter ), a desktop environment (most commonly GNOME , KDE Plasma , or Xfce ), a sound server (usually either PulseAudio or more recently PipeWire ), and other related programs may be included or installed by the user. Typically, most of the included software is free and open-source software – made available both as binary for convenience and as source code to allow for modifying it. A distro may also include proprietary software that

339-439: A CD with only a small amount of data on it. New users tend to begin by partitioning a hard drive in order to keep their previously installed operating system. The Linux distribution can then be installed on its own separate partition without affecting previously saved data. In a Live CD setup, the computer boots the entire operating system from CD without first installing it on the computer's hard disk. Many distributions have

452-520: A Live CD installer , where the computer boots the operating system from the disk, and it can then be installed on the computer's hard disk, providing a seamless transition from the OS running from the CD to the OS running from the hard disk. Both servers and personal computers that come with Linux already installed are available from vendors including Hewlett-Packard , Dell and System76 . On embedded devices, Linux

565-476: A city thought to be overwhelmed by the tourist influx. Construction of a new metro line connecting the part of the city north of the IJ to its southern part was started in 2003. The project was controversial because its cost had exceeded its budget by a factor of three by 2008, because of fears of damage to buildings in the centre, and because construction had to be halted and restarted multiple times. The new metro line

678-699: A defense of Catholicism during the Protestant Reformation. The main reasons for the uprising were the imposition of new taxes, the tenth penny, and the religious persecution of Protestants by the newly introduced Inquisition . The revolt escalated into the Eighty Years' War , which ultimately led to Dutch independence. Strongly pushed by Dutch Revolt leader William the Silent , the Dutch Republic became known for its relative religious tolerance. Jews from

791-512: A distribution, an administrator may create a "distributionless" installation. It is possible to build such systems from scratch, avoiding distributions altogether. One needs a way to generate the first binaries until the system is self-hosting . This can be done via compilation on another system capable of building binaries for the intended target (possibly by cross-compilation ). For example, see Linux From Scratch . In broad terms, Linux distributions may be: The diversity of Linux distributions

904-589: A flood in 1916, the depleted municipalities of Durgerdam, Holysloot, Zunderdorp and Schellingwoude , all lying north of Amsterdam, were, at their own request, annexed to the city. Between the wars, the city continued to expand, most notably to the west of the Jordaan district in the Frederik Hendrikbuurt and surrounding neighbourhoods. Nazi Germany invaded the Netherlands on 10 May 1940 and took control of

1017-584: A full-service bank for Dutch merchant bankers and as a reserve bank. From the 17th century onwards, Amsterdam also became involved in the Atlantic slave trade . The city was a major destination port for Dutch slave ships participating in the triangular trade , which lasted until the United Netherlands abolished the Netherlands' involvement in the trade in 1814 at the request of the British government . Amsterdam

1130-462: A junction of international waterways. A settlement was built here immediately after the landscape change of 1170. Right from the start of its foundation it focused on traffic, production and trade; not on farming, as opposed to how communities had lived further upstream for the past 200 years and northward for thousands of years. The construction of a dam at the mouth of the Amstel, eponymously named Dam ,

1243-482: A modest semi-permanent or seasonal settlement. Until water issues were controlled, a permanent settlement would not have been possible, since the river mouth and the banks of the Amstel in this period in time were too wet for permanent habitation. The origins of Amsterdam are linked to the development of a dam on the Amstel River called Amestelle , meaning 'watery area', from Aa(m) 'river' + stelle 'site at

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1356-637: A new SLS-based distribution, Slackware , was released by Patrick Volkerding . Also dissatisfied with SLS, Ian Murdock set to create a free distribution by founding Debian in August 1993, with first public BETA released in January 1994 and first stable version in June 1996. Users were attracted to Linux distributions as alternatives to the DOS and Microsoft Windows operating systems on IBM PC compatible computers, Mac OS on

1469-545: A number of hot and humid days with occasional rain every month. The average daily high in August is 22.1 °C (72 °F), and 30 °C (86 °F) or higher is only measured on average on 2.5 days, placing Amsterdam in AHS Heat Zone 2. The record extremes range from −19.7 °C (−3.5 °F) to 36.3 °C (97.3 °F). Days with more than 1 mm (0.04 in) of precipitation are common, on average 133 days per year. Amsterdam's average annual precipitation

1582-464: A package are present (and either notify the user to install them, or install them automatically). The package can also be provided as source code to be compiled on the system. Most distributions install packages, including the kernel and other core operating system components, in a predetermined configuration. A few now require or permit configuration adjustments at first install time. This makes installation less daunting, particularly for new users, but

1695-404: A proprietary operating system or by translating proprietary API calls (e.g., calls to Microsoft's Win32 or DirectX APIs) into native Linux API calls. A virtual machine can also be used to run a proprietary OS (like Microsoft Windows) on top of Linux. Computer hardware is usually sold with an operating system other than Linux already installed by the original equipment manufacturer (OEM). In

1808-515: A shoreline', 'river bank'. In this area, land reclamation started as early as the late 10th century. Amestelle was located along a side arm of the IJ. This side arm took the name from the eponymous land: Amstel. Amestelle was inhabited by farmers, who lived more inland and more upstream, where the land was not as wet as at the banks of the downstream river mouth. These farmers were starting the reclamation around upstream Ouderkerk aan de Amstel , and later at

1921-509: A specific instruction set , while some (such as Gentoo ) are distributed mostly in source code form and must be built before installation. Linus Torvalds developed the Linux kernel and distributed its first version, 0.01, in 1991. Linux was initially distributed as source code only, and later as a pair of downloadable floppy disk images: one bootable and containing the Linux kernel itself, and

2034-713: A specific application or service. Examples of packages are a library for handling the PNG image format, a collection of fonts, and a web browser . The package is typically provided as compiled code, with installation and removal of packages handled by a package management system (PMS) rather than a simple file archiver . Each package intended for such a PMS contains meta-information such as its description, version number, and its dependencies (other packages it requires to run). The package management system evaluates this meta-information to allow package searches, perform automatic upgrades to newer versions, and to check that all dependencies of

2147-543: A strong influence on the 'Amsterdam dialect' adding a large Yiddish local vocabulary. Despite an absence of an official Jewish ghetto , most Jews preferred to live in the eastern part, which used to be the centre of medieval Amsterdam. The main street of this Jewish neighbourhood was Jodenbreestraat. The neighbourhood comprised the Waterlooplein and the Nieuwmarkt . Buildings in this neighbourhood fell into disrepair after

2260-511: Is 838 mm (33 in). A large part of this precipitation falls as light rain or brief showers. Cloudy and damp days are common during the cooler months of October through March. In 1300, Amsterdam's population was around 1,000 people. While many towns in Holland experienced population decline during the 15th and 16th centuries, Amsterdam's population grew, mainly due to the rise of the profitable Baltic maritime trade especially in grain after

2373-416: Is a Linux distribution that can be booted from removable storage media such as optical discs or USB flash drives , instead of being installed on and booted from a hard disk drive . The portability of installation-free distributions makes them advantageous for applications such as demonstrations, borrowing someone else's computer, rescue operations, or as installation media for a standard distribution. When

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2486-757: Is a Linux distribution; others, such as Google engineer Patrick Brady, disagree by noting the lack of support for many GNU tools in Android, including glibc . Other Linux-kernel-based operating systems include Tizen , Mer / Sailfish OS , KaiOS and Amazon's Kindle firmware . Lightweight Linux distributions are those that have been designed with support for older hardware in mind, allowing older hardware to still be used productively, or, for maximum possible speed in newer hardware by leaving more resources available for use by applications. Examples include Tiny Core Linux , Puppy Linux and Slitaz . Other distributions target specific niches, such as: The Free Standards Group

2599-496: Is about 3.67%. Many Linux distributions provide an installation system akin to that provided with other modern operating systems. Other distributions, including Gentoo Linux , provide only the binaries of a basic kernel, compilation tools, and an installer; the installer compiles all the requested software for the specific architecture of the user's computer, using these tools and the software's source code. Distributions are normally segmented into packages . Each package contains

2712-531: Is an organization formed by major software and hardware vendors that aims to improve interoperability between different distributions. Among their proposed standards are the Linux Standard Base , which defines a common ABI and packaging system for Linux, and the Filesystem Hierarchy Standard which recommends a standard filenaming chart, notably the basic directory names found on the root of

2825-623: Is considered its Golden Age , during which it became the wealthiest city in the Western world. Ships sailed from Amsterdam to the Baltic Sea , the Caribbean, North America, and Africa, as well as present-day Indonesia , India, Sri Lanka , and Brazil , forming the basis of a worldwide trading network. Amsterdam's merchants had the largest share in both the Dutch East India Company (VOC) and

2938-671: Is due to technical, organizational, and philosophical variation among vendors and users. The permissive licensing of free software means that users with sufficient knowledge and interest can customize any existing distribution, or design one to suit their own needs. Rolling Linux distributions are kept current using small and frequent updates . The terms partially rolling and partly rolling (along with synonyms semi-rolling and half-rolling ), fully rolling , truly rolling and optionally rolling are sometimes used by software developers and users. Repositories of rolling distributions usually contain very recent software releases —often

3051-479: Is historically estimated to have occurred between 1264 and 1275. The settlement first appeared in a document from 1275, concerning a road toll granted by the count of Holland Floris V to the residents apud Amestelledamme 'at the dam in the Amstel' or 'at the dam of Amstelland'. This allowed the inhabitants of the village to travel freely through the County of Holland , paying no tolls at bridges, locks and dams. This

3164-581: Is in the southwest. Amsterdam is connected to the North Sea through the long North Sea Canal . Amsterdam is intensely urbanised, as is the Amsterdam metropolitan area surrounding the city. Comprising 219.4 km (84.7 sq mi) of land, the city proper has 4,457 inhabitants per km and 2,275 houses per km . Parks and nature reserves make up 12% of Amsterdam's land area. Amsterdam has more than 100 km (60 mi) of canals , most of which are navigable by boat. The city's three main canals are

3277-502: Is located in the Western Netherlands, in the province of North Holland , the capital of which is not Amsterdam, but rather Haarlem . The river Amstel ends in the city centre and connects to a large number of canals that eventually terminate in the IJ . Amsterdam's elevation is about −2 m (−6.6 ft) below sea level . The surrounding land is flat as it is formed of large polders . An artificial forest, Amsterdamse Bos ,

3390-489: Is not always acceptable. For specific requirements, much software must be carefully configured to be useful, to work correctly with other software, or to be secure, and local administrators are often obliged to spend time reviewing and reconfiguring it. Some (but not all) distributions go to considerable lengths to adjust and customize the software they include, and some provide configuration tools to help users do so. By obtaining and installing everything normally provided in

3503-545: Is not available in source code form, such as a device driver binary . A distro may be described as a particular assortment of application and utility software (various GNU tools and libraries, for example), packaged with the Linux kernel in such a way that its capabilities meet users' needs. The software is usually adapted to the distribution and then combined into software packages by the distribution's maintainers. The software packages are available online in repositories , which are storage locations usually distributed around

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3616-424: Is often referred to as "distro hopping". Virtual machine software such as VirtualBox and VMware Workstation virtualize hardware allowing users to test live media on a virtual machine without installing to the real system. Some websites like DistroWatch offer lists of distributions, and link to screenshots of operating systems as a way to get a first impression of various distributions. Some distributions let

3729-513: Is sometimes possible on closely related distributions. There are several ways to install a Linux distribution. The most common method of installing Linux is by booting from a live USB memory stick , which can be created by using a USB image writer application and the ISO image, which can be downloaded from various Linux distribution websites. DVD disks, CD disks, network installations and even other hard drives can also be used as "installation media". In

3842-462: Is typically held in the device's firmware and may or may not be consumer-accessible. Anaconda , one of the more popular installers, is used by Red Hat Enterprise Linux , Fedora (which uses the Fedora Media Writer ) and other distributions to simplify the installation process. Debian, Ubuntu and many others use Debian-Installer . The process of constantly switching between distributions

3955-661: The Concertgebouw were built; At the same time, the Industrial Revolution reached the city. The Amsterdam–Rhine Canal was dug to give Amsterdam a direct connection to the Rhine , and the North Sea Canal was dug to give the port a shorter connection to the North Sea . Both projects dramatically improved commerce with the rest of Europe and the world. In 1906, Joseph Conrad gave a brief description of Amsterdam as seen from

4068-615: The Amstel ' ) is the capital and most populated city of the Netherlands . It has a population of 921,402 within the city proper, 1,457,018 in the urban area and 2,480,394 in the metropolitan area . Located in the Dutch province of North Holland , Amsterdam is colloquially referred to as the " Venice of the North ", for its large number of canals , now a UNESCO World Heritage Site . Amsterdam

4181-529: The Apple Macintosh , and proprietary versions of Unix . Most early adopters were familiar with Unix from work or school. They embraced Linux distributions for their low (or absent) cost, and the availability of the source code for most or all of their software. As of 2024, Linux has become more popular in server and embedded devices markets than in the desktop market. It is used in approximately 58.9% of web servers; its current operating system market share

4294-784: The Dam Square , where the Royal Palace of Amsterdam and former city hall are located; the Amsterdam Museum ; Stedelijk Museum , with modern art; the Concertgebouw concert hall; the Anne Frank House ; the Scheepvaartmuseum , the Natura Artis Magistra ; Hortus Botanicus , NEMO , the red-light district and cannabis coffee shops . The city is known for its nightlife and festival activity, with several nightclubs among

4407-611: The Dutch East Indies in the 1940s and 1950s. In the 1960s guest workers from Turkey, Morocco, Italy, and Spain immigrated to Amsterdam. After the independence of Suriname in 1975, a large wave of Surinamese settled in Amsterdam, mostly in the Bijlmer area. Other immigrants, including refugees asylum seekers and undocumented immigrants , came from Europe, the Americas, Asia and Africa. In

4520-467: The Dutch Republic , which itself was a much smaller state than Great Britain, France or the Ottoman Empire . In contrast to those other metropolises, Amsterdam was also surrounded by large towns such as Leiden (about 67,000), Rotterdam (45,000), Haarlem (38,000) and Utrecht (30,000). The city's population declined in the early 19th century, dipping under 200,000 in 1820. By the second half of

4633-573: The Dutch West India Company . These companies acquired overseas possessions that later became Dutch colonies . Amsterdam was Europe's most important hub for the shipment of goods and was the leading financial centre of the Western world. In 1602, the Amsterdam office of the Dutch East India Company became the world's first stock exchange by trading in its own shares. The Bank of Amsterdam started operations in 1609, acting as

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4746-662: The Edict of Fontainebleau in 1685, while the Flemish Protestants came during the Eighty Years' War against Catholic Spain. The Westphalians came to Amsterdam mostly for economic reasons; their influx continued through the 18th and 19th centuries. Before the Second World War, 10% of the city population was Jewish . Just twenty percent of them survived the Holocaust . Amsterdam experienced an influx of religions and cultures after

4859-636: The Iberian Peninsula , Protestant Huguenots from France, prosperous merchants and printers from Flanders , and economic and religious refugees from the Spanish-controlled parts of the Low Countries found safety in Amsterdam. The influx of Flemish printers and the city's intellectual tolerance made Amsterdam a centre for the European free press . During the 17th century, Amsterdam experienced what

4972-577: The Linux kernel for its kernel functionality. Although the name does not imply product distribution per se, a distro, if distributed on its own, is often obtained via a website intended specifically for the purpose. Distros have been designed for a wide variety of systems ranging from personal computers (for example, Linux Mint ) to servers (for example, Red Hat Enterprise Linux ) and from embedded devices (for example, OpenWrt ) to supercomputers (for example, Rocks Cluster Distribution ). A distro typically includes many components in addition to

5085-747: The North Sea to the west, with prevailing westerly winds. Amsterdam, as well as most of the North Holland province, lies in USDA Hardiness zone 8b. Frosts mainly occur during spells of easterly or northeasterly winds from the inner European continent. Even then, because Amsterdam is surrounded on three sides by large bodies of water, as well as having a significant heat-island effect , nights rarely fall below −5 °C (23 °F), while it could easily be −12 °C (10 °F) in Hilversum , 25 km (16 mi) southeast. Summers are moderately warm with

5198-762: The Prinsengracht , the Herengracht and the Keizersgracht . In the Middle Ages , Amsterdam was surrounded by a moat, called the Singel , which now forms the innermost ring in the city, and gives the city centre a horseshoe shape. The city is also served by a seaport . It has been compared with Venice , due to its division into about 90 islands, which are linked by more than 1,200 bridges. Amsterdam has an oceanic climate ( Köppen : Cfb ) strongly influenced by its proximity to

5311-698: The Royal Netherlands Academy of Arts and Sciences . In 1953, Zernike won the Nobel Prize in Physics , for his invention of the phase-contrast microscope , an instrument that permits the study of internal cell structure without the need to stain and thus kill the cells. In 1954, Zernike became an Honorary Member of The Optical Society (OSA). Zernike was elected a Foreign Member of the Royal Society (ForMemRS). The university complex ( Zernike Campus ) to

5424-486: The UNESCO World Heritage List . In the 21st century, the Amsterdam city centre has attracted large numbers of tourists: between 2012 and 2015, the annual number of visitors rose from 10 to 17 million. Real estate prices have surged, and local shops are making way for tourist-oriented ones, making the centre unaffordable for the city's inhabitants. These developments have evoked comparisons with Venice ,

5537-550: The social housing projects in Amsterdam-West and the Bijlmer. Today, people of non-Western origin make up approximately one-fifth of the population of Amsterdam, and more than 30% of the city's children. A slight majority of the residents of Amsterdam have at least one parent who was born outside the country. However, a much larger majority has at least one parent who was born inside the country (intercultural marriages are common in

5650-425: The software development process , standard releases require significant development effort to keep old versions up-to-date by propagating bug fixes back to the newest branch, versus focusing on the newest development branch . Also, unlike rolling releases, standard releases require more than one code branch to be developed and maintained, which increases the workload of the software developers and maintainers. On

5763-519: The 1970s and 1980s, many 'old' Amsterdammers moved to 'new' cities like Almere and Purmerend , prompted by the third Land-use planning bill of the Dutch Government. This bill promoted suburbanization and arranged for new developments in so-called "groeikernen", literally cores of growth . Young professionals and artists moved into neighborhoods De Pijp and the Jordaan abandoned by these Amsterdammers. The non-Western immigrants settled mostly in

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5876-400: The 1990s, Linux distributions were installed using sets of floppy disks but this has been abandoned by all major distributions. By the 2000s many distributions offered CD and DVD sets with the vital packages on the first disc and less important packages on later ones. Some distributions, such as Debian also enabled installation over a network after booting from either a set of floppy disks or

5989-422: The 19th century, industrialization spurred renewed growth. Amsterdam's population hit an all-time high of 872,000 in 1959, before declining in the following decades due to government-sponsored suburbanisation to so-called groeikernen (growth centres) such as Purmerend and Almere . Between 1970 and 1980, Amsterdam experienced a sharp population decline, peaking at a net loss of 25,000 people in 1973. By 1985

6102-903: The Burgundian victory in the Dutch–Hanseatic War in 1441. The population of Amsterdam was only modest compared to the towns and cities of Flanders and Brabant , which comprised the most urbanized area of the Low Countries. This changed when, during the Dutch Revolt , many people from the Southern Netherlands fled to the North, especially after Antwerp fell to Spanish forces in 1585. Jews from Spain, Portugal and Eastern Europe similarly settled in Amsterdam, as did Germans and Scandinavians. In thirty years, Amsterdam's population more than doubled between 1585 and 1610. By 1600, its population

6215-461: The Linux kernel. Commonly, it includes a package manager , an init system (such as systemd , OpenRC , or runit ), GNU tools and libraries , documentation, IP network configuration utilities, the getty TTY setup program, and many more. To provide a desktop experience (most commonly the Mesa userspace graphics drivers) a display server (the most common being the X.org Server , or, more recently,

6328-555: The Netherlands. This led to the establishment of many non-Dutch-speaking churches. In 1603, the Jewish received permission to practice their religion in the city. In 1639, the first synagogue was consecrated. The Jews came to call the town " Jerusalem of the West ". As they became established in the city, other Christian denominations used converted Catholic chapels to conduct their own services. The oldest English-language church congregation in

6441-407: The Second World War a large section of the neighbourhood was demolished during the construction of the metro system. This led to riots, and as a result the original plans for large-scale reconstruction were abandoned by the government. The neighbourhood was rebuilt with smaller-scale residence buildings on the basis of its original layout. Catholic churches in Amsterdam have been constructed since

6554-409: The Second World War. With 180 different nationalities, Amsterdam is home to one of the widest varieties of nationalities of any city in the world. The proportion of the population of immigrant origin in the city proper is about 50% and 88% of the population are Dutch citizens. The first mass immigration in the 20th century was by people from Indonesia, who came to Amsterdam after the independence of

6667-517: The astronomical laboratory of Groningen University . In 1914, Zernike and Leonard Ornstein were jointly responsible for the derivation of the Ornstein–Zernike equation in critical-point theory. In 1915, he became lector in theoretical mechanics and mathematical physics at the same university and in 1920 he was promoted to professor of mathematical physics. In 1930, Zernike was conducting research into spectral lines when he discovered that

6780-443: The base of the first phase contrast microscope, built during World War II. He also made another contribution in the field of optics, relating to the efficient description of the imaging defects or aberrations of optical imaging systems like microscopes and telescopes . The representation of aberrations was originally based on the theory developed by Ludwig Seidel in the middle of the nineteenth century. Seidel's representation

6893-590: The case of IBM PC compatibles , the OS is usually Microsoft Windows ; in the case of Apple 's Mac computers, it has always been macOS ; Sun Microsystems sold SPARC hardware with the Solaris installed; video game consoles such as the Xbox , PlayStation , Wii , and the Nintendo Switch each have their own proprietary OS. This limits Linux's market share: consumers are unaware that an alternative exists, they must make

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7006-514: The city expanded and new neighborhoods and suburbs were built. The city has a long tradition of openness, liberalism, and tolerance. Cycling is key to the city's modern character, and there are numerous biking paths and lanes spread throughout. Amsterdam's main attractions include its historic canals ; the Rijksmuseum , the state museum with Dutch Golden Age art; the Van Gogh Museum ;

7119-425: The city had only 675,570 residents. This was soon followed by reurbanization and gentrification , leading to renewed population growth in the 2010s. Also in the 2010s, much of Amsterdam's population growth was due to immigration to the city. In the 16th and 17th century, non-Dutch immigrants to Amsterdam were mostly Protestant Huguenots and Flemings , Sephardic Jews , and Westphalians . Huguenots came after

7232-431: The city's Zuidoost (southeast) exclave and the centre of Amsterdam. Further plans were to build a new highway above the metro to connect Amsterdam Centraal and the city centre with other parts of the city. The required large-scale demolitions began in Amsterdam's former Jewish neighborhood. Smaller streets, such as the Jodenbreestraat and Weesperstraat, were widened and almost all houses and buildings were demolished. At

7345-499: The city). Only a third of inhabitants under 15 are autochthons ( person with two parents of Dutch origin). In 2023, autochthons were a minority in 40% of Amsterdam's neighborhoods. Segregation along ethnic lines is clearly visible, with people of non-Western origin, considered a separate group by Statistics Netherlands , concentrating in specific neighborhoods especially in Nieuw-West , Zeeburg , Bijlmer and in certain areas of Amsterdam-Noord . In 2000, Christians formed

7458-406: The city. During the French Revolutionary Wars and the Napoleonic Wars , Amsterdam's significance reached its lowest point, with Holland being absorbed into the French Empire . However, the later establishment of the United Kingdom of the Netherlands in 1815 marked a turning point. The end of the 19th century is sometimes called Amsterdam's second Golden Age. New museums, a railway station, and

7571-399: The country. Some Amsterdam citizens sheltered Jews, thereby exposing themselves and their families to a high risk of being imprisoned or sent to concentration camps. More than 100,000 Dutch Jews were deported to Nazi concentration camps , of whom some 60,000 lived in Amsterdam. In response, the Dutch Communist Party organized the February strike attended by 300,000 people to protest against

7684-407: The entire city centre. Although the success of this struggle is visible today, efforts for further restoration are still ongoing. The entire city centre has reattained its former splendour and, as a whole, is now a protected area . Many of its buildings have become monuments, and in July 2010 the Grachtengordel (the three concentric canals: Herengracht, Keizersgracht, and Prinsengracht) was added to

7797-451: The founding of Amsterdam is later than other urban centres in the Low Countries . However, around the area of what later became Amsterdam, farmers settled as early as three millennia ago. They lived along the prehistoric IJ river and upstream of its tributary Amstel. The prehistoric IJ was a shallow and quiet stream in peatland behind beach ridges . This secluded area was able to grow into an important local settlement centre, especially in

7910-438: The heyday of the Stille Omgang , which became the expression of the pilgrimage after the Protestant Reformation , up to 90,000 pilgrims came to Amsterdam. From the 14th century on, Amsterdam flourished, largely from trade with the Hanseatic League . From the 15th century on the city established an independent trade route with the Baltic Sea in grain and timber, cutting out the Hanseatic League as middlemen. The city became

8023-401: The industry. The herring industry relied on international trade cooperation and large initial investments in ships. This required many highly skilled and unskilled workers cooperating, as well as the import of the necessary raw materials to turn an unfinished product into a marketable one. This required merchants to then sell it throughout the continent and book-keepers and accountants to divide

8136-513: The largely Catholic city of Amsterdam joined the revolt against Spanish rule, late in comparison to other major northern Dutch cities. Catholic priests were driven out of the city. Following the Dutch takeover, all churches were converted to Protestant worship. Calvinism was declared the main religion. It was forbidden to openly profess Roman Catholicism and the Catholic hierarchy was prohibited until

8249-549: The largest religious group in the city (28% of the population). The next largest religion was Islam (8%), most of whose followers were Sunni . In 2015, Christians formed the largest religious group in the city (28% of the population). The next largest religion was Islam (7.1%), most of whose followers were Sunni . Amsterdam has been one of the municipalities in the Netherlands which provided immigrants with extensive and free Dutch-language courses, which have benefited many immigrants. Religion in Amsterdam (2015) In 1578,

8362-505: The late Bronze Age , the Iron Age and the Roman Age . Neolithic and Roman artefacts have also been found in the prehistoric Amstel bedding under Amsterdam's Damrak and Rokin , such as shards of Bell Beaker culture pottery (2200–2000 BC) and a granite grinding stone (2700–2750 BC), but the location of these artefacts around the river banks of the Amstel probably point to a presence of

8475-459: The latest stable versions available. They have pseudo-releases and installation media that are simply snapshots of the distribution at the time of the installation image's release. Typically, a rolling-release OS installed from older installation medium can be fully updated after it is installed. Depending on the usage case, there can be pros and cons to both standard release and rolling release software development methodologies . In terms of

8588-443: The mid-19th century . This led to the establishment of clandestine churches , covert religious buildings hidden in pre-existing buildings. Catholics, some Jews and dissenting Protestants worshipped in such buildings. A large influx of foreigners of many religions came to 17th-century Amsterdam, in particular Sefardic Jews from Spain and Portugal, Huguenots from France, Lutherans , Mennonites , as well as Protestants from across

8701-435: The need to change the contents of the system's hard disk drive. The website DistroWatch lists many Linux distributions and displays some of the ones that have the most web traffic on the site. The Wikimedia Foundation released an analysis of the browser User Agents of visitors to WMF websites until 2015, which includes details of the most popular Operating System identifiers, including some Linux distributions. Many of

8814-615: The north of the city of Groningen is named after him, as is the crater Zernike on the Moon and the minor planet 11779 Zernike . Zernike's great-nephew Gerard 't Hooft won the Nobel Prize in Physics in 1999. The Oz Enterprise, a Linux distribution , was named after Leonard Ornstein and Frederik Zernike. Amsterdam Amsterdam ( / ˈ æ m s t ər d æ m / AM -stər-dam , UK also / ˌ æ m s t ər ˈ d æ m / AM -stər- DAM , Dutch: [ˌɑmstərˈdɑm] ; lit.   ' Dam in

8927-797: The operating system is booted from a read-only medium such as a CD or DVD, any user data that needs to be retained between sessions cannot be stored on the boot device but must be written to another storage device, such as a USB flash drive or a hard disk drive. Many Linux distributions provide a "live" form in addition to their conventional form, which is a network-based or removable-media image intended to be used only for installation; such distributions include SUSE , Ubuntu, Linux Mint , MEPIS and Fedora Linux . Some distributions, including Knoppix , Puppy Linux , Devil-Linux, SuperGamer , SliTaz GNU/Linux and dyne:bolic , are designed primarily for live use. Additionally, some minimal distributions can be run directly from as little space as one floppy disk without

9040-450: The other hand, software features and technology planning are easier in standard releases due to a better understanding of upcoming features in the next version(s). Software release cycles can also be synchronized with those of major upstream software projects, such as desktop environments . As for the user experience , standard releases are often viewed as more stable and bug-free since software conflicts can be more easily addressed and

9153-474: The other side of the river at Amstelveen . The Van Amstel family , known in documents by this name since 1019, held the stewardship in this northwestern nook of the ecclesiastical district of the bishop of Utrecht . The family later served also under the count of Holland . A major turning point in the development of the Amstel river mouth was the All Saint's Flood of 1170 . In an extremely short period of time,

9266-446: The other with a set of GNU utilities and tools for setting up a file system. Since the installation procedure was complicated, especially in the face of growing amounts of available software, distributions sprang up to simplify it. Early distributions included: The two oldest, still active distribution projects started in 1993. The SLS distribution was not well maintained, so in July 1993

9379-584: The peak of the demolition, the Nieuwmarktrellen ( Nieuwmarkt riots ) broke out; the rioters expressed their fury about the demolition caused by the restructuring of the city. As a result, the demolition was stopped and the highway into the city's centre was never fully built; only the metro was completed. Only a few streets remained widened. The new city hall was built on the almost completely demolished Waterlooplein. Meanwhile, large private organizations, such as Stadsherstel Amsterdam , were founded to restore

9492-467: The popular distributions are listed below. Several operating systems include the Linux kernel, but have a userland that differs significantly from that of mainstream Linux distributions: Whether such operating systems count as a "Linux distribution" is a controversial topic. They use the Linux kernel, so the Linux Foundation and Chris DiBona , Google's former open-source chief, agree that Android

9605-593: The profit. In short, the herring industry was setting up the foundations for what would later become the transcontinental trade system and the Dutch Golden Age , with Amsterdam at its centre, hence the saying "Amsterdam is built on Herring bones". The Low Countries were part of the Hapsburg inheritance and came under the Spanish monarchy in the early sixteenth century. The Dutch rebelled against Philip II of Spain , who led

9718-402: The public streets, however, were still forbidden under law at the time. Only in the 20th century was Amsterdam's relation to Catholicism normalised, but despite its far larger population size, the episcopal see of the city was placed in the provincial town of Haarlem . Linux distribution A Linux distribution (often abbreviated as distro ) is an operating system that includes

9831-525: The raids. The most famous deportee was the young Jewish girl Anne Frank , who died in the Bergen-Belsen concentration camp . At the end of the Second World War, communication with the rest of the country broke down, and food and fuel became scarce. Many citizens traveled to the countryside to forage. Dogs, cats, raw sugar beets , and tulip bulbs—cooked to a pulp—were consumed to stay alive. Many trees in Amsterdam were cut down for fuel, and wood

9944-632: The restoration of the episcopal hierarchy in 1853. One of the principal architects behind the city's Catholic churches, Cuypers , was also responsible for the Amsterdam Centraal station and the Rijksmuseum . In 1924, the Catholic Church hosted the International Eucharistic Congress in Amsterdam; numerous Catholic prelates visited the city, where festivities were held in churches and stadiums. Catholic processions on

10057-448: The rolling release model can have advantages in timely security updates, fixing system or application security bugs and vulnerabilities , that standard releases may have to wait till the next release for or patch in various versions. In a rolling release distribution, where the user has chosen to run it as a highly dynamic system, the constant flux of software packages can introduce new unintended vulnerabilities. A "live" distribution

10170-715: The seaside, in The Mirror of the Sea . Shortly before the First World War , the city started to expand again, and new suburbs were built. Even though the Netherlands remained neutral in this war, Amsterdam suffered a food shortage, and heating fuel became scarce. The shortages sparked riots in which several people were killed. These riots are known as the Aardappeloproer (Potato rebellion). People started looting stores and warehouses to get supplies, mainly food. On 1 January 1921, after

10283-565: The second half of the 17th century, Amsterdam experienced an influx of Ashkenazim , Jews from Central and Eastern Europe . Jews often fled the pogroms in those areas. The first Ashkenazis who arrived in Amsterdam were refugees from the Khmelnytsky uprising occurring in Ukraine and the Thirty Years' War , which devastated much of Central Europe. They not only founded their own synagogues, but had

10396-467: The shallow river IJ turned into a wide estuary, which from then on offered the Amstel an open connection to the Zuiderzee , IJssel and waterways further afield. This made the water flow of the Amstel more active, so excess water could be drained better. With drier banks, the downstream Amstel mouth became attractive for permanent habitation. Moreover, the river had grown from an insignificant peat stream into

10509-484: The so-called ghost lines that occur to the left and right of each primary line in spectra created by means of a diffraction grating , have their phase shifted from that of the primary line by 90 degrees. It was at a Physical and Medical Congress in Wageningen in 1933, that Zernike first described his phase contrast technique in microscopy. He extended his method to test the figure of concave mirrors. His discovery lay at

10622-507: The software stack more thoroughly tested and evaluated, during the software development cycle. For this reason, they tend to be the preferred choice in enterprise environments and mission-critical tasks. However, rolling releases offer more current software which can also provide increased stability and fewer software bugs along with the additional benefits of new features, greater functionality, faster running speeds, and improved system and application security . Regarding software security ,

10735-410: The staple market of Europe for bulk cargo . This was made possible due to innovations in the herring fishery , from which Amsterdam reaped great wealth. Herring had demand in markets all around Europe. Inventions of on-board gibbing and the haringbuis in 1415, made longer voyages feasible, and hence enabled Dutch fishermen to follow the herring shoals far from the coasts, giving them a monopoly in

10848-513: The study of partially coherent light sources. In 1938 he published a simpler derivation of Van Cittert's 1934 theorem on the coherence of radiation from distant sources, now known as the Van Cittert–Zernike theorem . He died in hospital in Amersfoort in 1966 after suffering illness the last years of his life. His granddaughter is journalist Kate Zernike . In 1946, Zernike became member of

10961-451: The top financial centres in Europe, Amsterdam is considered an alpha world city . The city is the cultural capital of the Netherlands. Many large Dutch institutions have their headquarters in the city. Many of the world's largest companies are based here or have established their European headquarters in the city, such as technology companies Uber , Netflix , and Tesla . In 2022, Amsterdam

11074-435: The tree of any Linux filesystem. Those standards, however, see limited use, even among the distributions developed by members of the organization. The diversity of Linux distributions means that not all software runs on all distributions, depending on what libraries and other system attributes are required. Packaged software and software repositories are usually specific to a particular distribution, though cross-installation

11187-462: The user install Linux on top of their current system, such as WinLinux or coLinux . Linux is installed to the Windows hard disk partition, and can be started from inside Windows itself. Virtual machines (such as VirtualBox or VMware ) also make it possible for Linux to be run inside another OS. The VM software simulates a separate computer onto which the Linux system is installed. After installation,

11300-640: The virtual machine can be booted as if it were an independent computer. Various tools are also available to perform full dual-boot installations from existing platforms without a CD, most notably: Some specific proprietary software products are not available in any form for Linux. As of September 2015, the Steam gaming service has over 1,500 games available on Linux, compared to 2,323 games for Mac and 6,500 Windows games. Emulation and API-translation projects like Wine and CrossOver make it possible to run non-Linux-based software on Linux systems, either by emulating

11413-420: The war and other events of the 20th century, almost the entire city centre had fallen into disrepair. As society was changing, politicians and other influential figures made plans to redesign large parts of it. There was an increasing demand for office buildings, and also for new roads, as the automobile became available to most people. A metro started operating in 1977 between the new suburb of Bijlmermeer in

11526-557: The world . The Dutch capital is one of the most multicultural cities in the world, with about 180 nationalities represented. Immigration and ethnic segregation in Amsterdam is a current issue. Amsterdam's notable residents throughout its history include painters Rembrandt and Vincent van Gogh , 17th-century philosophers Baruch Spinoza , John Locke , René Descartes , and the Holocaust victim and diarist Anne Frank . Due to its geographical location in what used to be wet peatland ,

11639-795: The world outside the United Kingdom is found at the Begijnhof . Regular services there are still offered in English under the auspices of the Church of Scotland . Being Calvinists, the Huguenots soon integrated into the Dutch Reformed Church , though often retaining their own congregations. Some, commonly referred to by the moniker 'Walloon', are recognizable today as they offer occasional services in French. In

11752-400: The world's most famous. Its artistic heritage, canals and narrow canal houses with gabled façades , well-preserved legacies of the city's 17th-century Golden Age, have attracted millions of visitors annually. The Amsterdam Stock Exchange , founded in 1602, is considered the oldest "modern" securities market stock exchange in the world. As the commercial capital of the Netherlands and one of

11865-724: The world. Beside "glue" components, such as the distribution installers (for example, Debian-Installer and Anaconda ) and the package management systems, very few packages are actually written by a distribution's maintainers. Distributions have been designed for a wide range of computing environments, including desktops , servers , laptops , netbooks , mobile devices (phones and tablets), and embedded systems . There are commercially backed distributions, such as Fedora Linux ( Red Hat ), openSUSE ( SUSE ) and Ubuntu ( Canonical Ltd. ), and entirely community-driven distributions, such as Debian , Slackware , Gentoo and Arch Linux . Most distributions come ready-to-use and prebuilt for

11978-420: Was a move in a years-long struggle for power in the area between the count of Holland and the Amstel family who governed the area on behalf of the bishop of Utrecht. By 1327, the name had developed into Aemsterdam . The bishop of Utrecht granted Amsterdam zone rights in either 1300 or 1306. The Mirakel van Amsterdam  [ nl ] in 1345 rendered the city an important place of pilgrimage . During

12091-540: Was also a member of the Society of Suriname , an organisation founded to oversee the management of the Dutch colony of Surinam , which was economically dependent on slave plantations . On 1 July 2021, the mayor of Amsterdam , Femke Halsema , apologised for the city's involvement in the slave trade. Amsterdam's prosperity declined during the 18th and early 19th centuries. The wars of the Dutch Republic with England (latterly, Great Britain ) and France took their toll on

12204-481: Was around 50,000. During the 1660s, Amsterdam's population reached 200,000. The city's growth levelled off and the population stabilized around 240,000 for most of the 18th century. In 1750, Amsterdam was the fourth largest city in Western Europe , behind London (676,000), Paris (560,000) and Naples (324,000). This was all the more remarkable as Amsterdam was neither the capital city nor the seat of government of

12317-485: Was based on power series expansions and did not allow a clear separation between various types and orders of aberrations. Zernike's orthogonal circle polynomials provided a solution to the long-standing problem of the optimum 'balancing' of the various aberrations of an optical instrument. Since the 1960s, Zernike's circle polynomials are widely used in optical design , optical metrology and image analysis . Zernike's work helped awaken interest in coherence theory ,

12430-491: Was completed in 2018. Since 2014, renewed focus has been given to urban regeneration and renewal, especially in areas directly bordering the city centre, such as Frederik Hendrikbuurt . This urban renewal and expansion of the traditional centre of the city—with the construction on artificial islands of the new eastern IJburg neighbourhood—is part of the Structural Vision Amsterdam 2040 initiative. Amsterdam

12543-411: Was founded at the mouth of the Amstel River, which was dammed to control flooding. Originally a small fishing village in the 12th century, Amsterdam became a major world port during the Dutch Golden Age of the 17th century, when the Netherlands was an economic powerhouse. Amsterdam was the leading centre for finance and trade, as well as a hub of secular art production. In the 19th and 20th centuries,

12656-482: Was ranked the ninth-best city to live in by the Economist Intelligence Unit and 12th on quality of living for environment and infrastructure by Mercer. The city was ranked 4th place globally as a top tech hub in 2019. The Port of Amsterdam is the fifth largest in Europe. The KLM hub and Amsterdam's main airport, Schiphol , is the busiest airport in the Netherlands , third in Europe , and 11th in

12769-512: Was taken from the houses, apartments and other buildings of deported Jews. The city was finally liberated by Canadian forces on 5 May 1945, shortly before the end of the war in Europe. Many new suburbs, such as Osdorp , Slotervaart , Slotermeer and Geuzenveld , were built in the years after the Second World War. These suburbs contained many public parks and wide-open spaces, and the new buildings provided improved housing conditions with larger and brighter rooms, gardens, and balconies. Because of

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