Linux is a family of free and open-source software operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is packaged in a Linux distribution. Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy. Popular Linux distributions include Debian and Ubuntu. Commercial distributions include SUSE Linux Enterprise Server. Desktop Linux distributions include a windowing system such as X11 or Wayland, a desktop environment such as GNOME or KDE Plasma. Distributions intended for servers may omit graphics altogether, include a solution stack such as LAMP; because Linux is redistributable, anyone may create a distribution for any purpose. Linux was developed for personal computers based on the Intel x86 architecture, but has since been ported to more platforms than any other operating system.
Linux is the leading operating system on servers and other big iron systems such as mainframe computers, the only OS used on TOP500 supercomputers. It is used by around 2.3 percent of desktop computers. The Chromebook, which runs the Linux kernel-based Chrome OS, dominates the US K–12 education market and represents nearly 20 percent of sub-$300 notebook sales in the US. Linux runs on embedded systems, i.e. devices whose operating system is built into the firmware and is tailored to the system. This includes routers, automation controls, digital video recorders, video game consoles, smartwatches. Many smartphones and tablet computers run other Linux derivatives; because of the dominance of Android on smartphones, Linux has the largest installed base of all general-purpose operating systems. Linux is one of the most prominent examples of open-source software collaboration; the source code may be used and distributed—commercially or non-commercially—by anyone under the terms of its respective licenses, such as the GNU General Public License.
The Unix operating system was conceived and implemented in 1969, at AT&T's Bell Laboratories in the United States by Ken Thompson, Dennis Ritchie, Douglas McIlroy, Joe Ossanna. First released in 1971, Unix was written in assembly language, as was common practice at the time. In a key pioneering approach in 1973, it was rewritten in the C programming language by Dennis Ritchie; the availability of a high-level language implementation of Unix made its porting to different computer platforms easier. Due to an earlier antitrust case forbidding it from entering the computer business, AT&T was required to license the operating system's source code to anyone who asked; as a result, Unix grew and became adopted by academic institutions and businesses. In 1984, AT&T divested itself of Bell Labs; the GNU Project, started in 1983 by Richard Stallman, had the goal of creating a "complete Unix-compatible software system" composed of free software. Work began in 1984. In 1985, Stallman started the Free Software Foundation and wrote the GNU General Public License in 1989.
By the early 1990s, many of the programs required in an operating system were completed, although low-level elements such as device drivers and the kernel, called GNU/Hurd, were stalled and incomplete. Linus Torvalds has stated that if the GNU kernel had been available at the time, he would not have decided to write his own. Although not released until 1992, due to legal complications, development of 386BSD, from which NetBSD, OpenBSD and FreeBSD descended, predated that of Linux. Torvalds has stated that if 386BSD had been available at the time, he would not have created Linux. MINIX was created by Andrew S. Tanenbaum, a computer science professor, released in 1987 as a minimal Unix-like operating system targeted at students and others who wanted to learn the operating system principles. Although the complete source code of MINIX was available, the licensing terms prevented it from being free software until the licensing changed in April 2000. In 1991, while attending the University of Helsinki, Torvalds became curious about operating systems.
Frustrated by the licensing of MINIX, which at the time limited it to educational use only, he began to work on his own operating system kernel, which became the Linux kernel. Torvalds began the development of the Linux kernel on MINIX and applications written for MINIX were used on Linux. Linux matured and further Linux kernel development took place on Linux systems. GNU applications replaced all MINIX components, because it was advantageous to use the available code from the GNU Project with the fledgling operating system. Torvalds initiated a switch from his original license, which prohibited commercial redistribution, to the GNU GPL. Developers worked to integrate GNU components with the Linux kernel, making a functional and free operating system. Linus Torvalds had wanted to call his invention "Freax", a portmant
Fujitsu Ltd. is a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan. In 2015, it was the world's fourth-largest IT services provider measured by IT services revenue. Fortune named Fujitsu as a Global 500 company. Fujitsu chiefly makes computing products, but the company and its subsidiaries offer a diversity of products and services in the areas of personal computing, enterprise computing, including x86, SPARC and mainframe server products, as well as storage products, telecommunications, advanced microelectronics, air conditioning, it has 140,000 employees and its products and services are available in over 100 countries. Fujitsu is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 and TOPIX indices. Fujitsu is the second oldest IT company after IBM and before Hewlett Packard, established on June 20, 1935, under the name Fuji Telecommunications Equipment Manufacturing, as a spin-off of the Fuji Electric Company, itself a joint venture between the Furukawa Electric Company and the German conglomerate Siemens, founded in 1923.
Despite its connections to the Furukawa zaibatsu, Fujitsu escaped the Allied occupation of Japan after the Second World War unscathed. In 1954, Fujitsu manufactured Japan's first computer, the FACOM 100 mainframe, in 1961 launched its second generation computers the FACOM 222 mainframe; the 1968 FACOM230 "5" Series marked the beginning of its third generation computers. Fujitsu offered mainframe computers from 1955 until at least 2002 Fujitsu's computer products have included minicomputers, small business computers and personal computers. In 1955, Fujitsu founded Kawasaki Frontale as a company football club. In 1967, the company's name was changed to the contraction Fujitsū. Since 1985, the company fields a company American football team, the Fujitsu Frontiers, who play in the corporate X-League, have appeared in 7 Japan X Bowls, winning two, winning two Rice Bowls. In 1971, Fujitsu signed an OEM agreement with the Canadian company Consolidated Computers Limited to distribute CCL's data entry product, Key-Edit.
Fujitsu joined both ICL who earlier began marketing Key-Edit in the British Commonwealth of countries as well as in both western and eastern Europe. Mers Kutt, inventor of Key-Edit and founder of CCL, was the common thread that led to Fujitsu’s association with ICL and Gene Amdahl. In 1986, Fujitsu and The Queen's University of Belfast business incubation unit established a joint venture called Kainos, a held software company based in Belfast, Northern Ireland. In 1990, Fujitsu acquired 80% of the UK-based computer company International Computers Limited for $1.29 billion. In September 1990, Fujitsu announced the launch of a new series of mainframe computers which were at that time the fastest in the world. In July 1991, Fujitsu acquired more than half of the Russian company KME-CS. In 1992, Fujitsu introduced the world's first 21-inch full-color plasma display, it was a hybrid, based upon the plasma display created at the University of Illinois at Urbana-Champaign and NHK STRL, achieving superior brightness.
In 1993, Fujitsu formed a flash memory manufacturing joint venture with Spansion. As part of the transaction, AMD contributed its flash memory group, Fab 25 in Texas, its R&D facilities and assembly plants in Thailand and China. From February 1989 until mid-1997, Fujitsu built the FM Towns PC variant, it started as a proprietary PC variant intended for multimedia applications and computer games, but became more compatible with regular PCs. In 1993, the FM Towns Marty was released. Fujitsu agreed to acquire the 58 percent of Amdahl Corporation that it did not own for around $850 million in July 1997. In April 1997, the company acquired a 30 percent stake in GLOVIA International, Inc. an El Segundo, Calif. manufacturing ERP software provider whose software it had begun integrating into its electronics plants starting in 1994. In June 1999 Fujitsu's historical connection with Siemens was revived, when the two companies agreed to merge their European computer operations into a new 50:50 joint venture called Fujitsu Siemens Computers, which became the world's fifth-largest computer manufacturing company.
In April 2000, Fujitsu acquired the remaining 70% of GLOVIA International. In April 2002 ICL re-branded itself as Fujitsu. On March 2, 2004, Fujitsu Computer Products of America lost a class action lawsuit over hard disk drives with defective chips and firmware. In October 2004, Fujitsu acquired the Australian subsidiary of Atos Origin, a systems implementation company with around 140 employees which specialized in SAP. In August 2007, Fujitsu signed a £500 million, 10-year deal with Reuters Group under which Reuters outsourced the majority of its internal IT department to Fujitsu; as part of the agreement around 300 Reuters staff and 200 contractors transferred to Fujitsu. In October 2007, Fujitsu announced that it would be establishing an offshore development centre in Noida, India with a capacity to house 1,200 employees, in an investment of US$10 million. In October 2007, Fujitsu's Australia and New Ze
University of Tokyo
The University of Tokyo, abbreviated as Todai or UTokyo, is a public research university located in Bunkyo, Japan. Established in 1877 as the first imperial university, it is one of Japan's most prestigious universities; the university has 10 faculties and enrolls about 30,000 students, 2,100 of whom are international students. Its five campuses are in Hongō, Kashiwa and Nakano, it is among the top type of the select Japanese universities assigned additional funding under the MEXT's Top Global University Project to enhance Japan's global educational competitiveness. The university has graduated many notable alumni, including 17 Prime Ministers, 9 Nobel Prize laureates, 3 Pritzker Prize laureates, 3 astronauts, 1 Fields Medalist; the university was chartered by the Meiji government in 1877 under its current name by amalgamating older government schools for medicine, various traditional scholars and modern learning. It was renamed "the Imperial University" in 1886, Tokyo Imperial University in 1897 when the Imperial University system was created.
In September 1923, an earthquake and the following fires destroyed about 700,000 volumes of the Imperial University Library. The books lost included the Hoshino Library, a collection of about 10,000 books; the books were the former possessions of Hoshino Hisashi before becoming part of the library of the university and were about Chinese philosophy and history. In 1947, after Japan's defeat in World War II, it re-assumed its original name. With the start of the new university system in 1949, Todai swallowed up the former First Higher School and the former Tokyo Higher School, which thenceforth assumed the duty of teaching first- and second-year undergraduates, while the faculties on Hongo main campus took care of third- and fourth-year students. Although the university was founded during the Meiji period, it has earlier roots in the Astronomy Agency, Shoheizaka Study Office, the Western Books Translation Agency; these institutions were government offices established by the 徳川幕府 Tokugawa shogunate, played an important role in the importation and translation of books from Europe.
Kikuchi Dairoku, an important figure in Japanese education, served as president of Tokyo Imperial University. For the 1964 Summer Olympics, the university hosted the running portion of the modern pentathlon event. On 20 January 2012, Todai announced that it would shift the beginning of its academic year from April to September to align its calendar with the international standard; the shift would be phased in over five years. But this unilateral announcement by the president was received badly and the university abandoned the plans. According to the Japan Times, the university had 1,282 professors in February 2012. Of those, 58 were women. In the fall of 2012 and for the first time, the University of Tokyo started two undergraduate programs taught in English and geared toward international students — Programs in English at Komaba — the International Program on Japan in East Asia and the International Program on Environmental Sciences. In 2014, the School of Science at the University of Tokyo introduced an all-English undergraduate transfer program called Global Science Course.
The University of Tokyo is organized into 15 graduate schools. Todai Law School is considered as one of the top Law schools in Japan, ranking top in the number of successful candidates of Japanese Bar Examination in 2009 and 2010. Eduniversal ranked Japanese business schools, the Faculty of Economics in Todai is placed 4th in Japan; the University of Tokyo is considered a top research institution of Japan. It receives the largest amount of national grants for research institutions, Grants-in-Aid for Scientific Research, receiving 40% more than the University with 2nd largest grants and 90% more than the University with 3rd largest grants; this massive financial investment from the Japanese government directly affects Todai's research outcomes. According to Thomson Reuters, Todai is the best research university in Japan, its research excellence is distinctive in Physics, Biology & Biochemistry, Pharmacology & Toxicology, Materials Science and Immunology. In another ranking, Nikkei Shimbun on 2004/2/16 surveyed about the research standards in Engineering studies based on Thomson Reuters, Grants in Aid for Scientific Research and questionnaires to heads of 93 leading Japanese Research Centers, Todai was placed 4th in this ranking.
Weekly Diamond reported that Todai has the 3rd highest research standard in Japan in terms of research fundings per researchers in COE Program. In the same article, it's ranked 21st in terms of the quality of education by GP funds per student. Todai has been recognized for its research in the social sciences and humanities. In January 2011, Repec ranked Todai's Economics department as Japan's best economics research university, and it is the only Japanese university within world top 100. Todai has produced 9 presidents of the Japanese Economic Association, the largest number in the association. Asahi Shimbun summarized the amount of academic papers in Japanese major legal journals by university, Todai was ranked top during 2005-2009; the University's School of Science and the Earthquake Research Institute are both r
Internet Initiative Japan
Internet Initiative Japan Inc. was founded in 1992 by Koichi Suzuki, IIJ as Japan’s first ISP. By leveraging the technological expertise gained through its internet connectivity services, the company has expanded its business portfolio as a total solutions provider, now offering network services, value-added outsourcing services, cloud computing, WAN services and systems integration services. IIJ's flagship cloud service named IIJ GIO is among Japan’s public cloud computing leaders ranked as the top provider in the Japanese cloud market for 2 consecutive years. Today, IIJ serve more than 8,500 blue chip clients, operates in: Japan, US, UK, China, Hong Kong, Singapore, Thailand, they employ more than 3000 staff worldwide, over 70 % of. From 1999 IIJ were listed on NASDAQ, USA and as of 2006 were listed on the First Section of the Tokyo Stock Exchange. IIJ operates IIJmio, a prepaid mobile virtual network operator service started in 2001 which operates on the NTT DoCoMo network. Internet Initiative Japan — Official website in English Internet Initiative Japan IIJmio official website
O'Reilly Media is an American media company established by Tim O'Reilly that publishes books and Web sites and produces conferences on computer technology topics. Their distinctive brand features a woodcut of an animal on many of their book covers; the company began in 1978 as a private consulting firm doing technical writing, based in the Cambridge, Massachusetts area. In 1984, it began to retain publishing rights on manuals created for Unix vendors. A few 70-page "Nutshell Handbooks" were well-received, but the focus remained on the consulting business until 1988. After a conference displaying O'Reilly's preliminary Xlib manuals attracted significant attention, the company began increasing production of manuals and books; the original cover art consisted of animal designs developed by Edie Freedman because she thought that Unix program names sounded like "weird animals". In 1993 O'Reilly Media created the first web portal, when they launched one of the first Web-based resources, Global Network Navigator.
GNN was sold to AOL in one of the first large transactions of the dot-com bubble. GNN was the first site on the World Wide Web to feature paid advertising. Although O'Reilly Media got its start in publishing two decades after its genesis the company expanded into event production. In 1997, O'Reilly launched The Perl Conference to cross-promote its books on the Perl programming language. Many of the company's other software bestsellers were on topics that were off the radar of the commercial software industry. In 1998, O'Reilly invited many of the leaders of software projects to a meeting. Called the freeware summit, the meeting became known as the Open Source Summit; the O'Reilly Open Source Convention is now one of O'Reilly's flagship events. Other key events include the Strata Conference on big data, the Velocity Conference on Web Performance and Operations, FOO Camp. Past events of note include the Web 2.0 Summit. Overall, O'Reilly describes its business not as publishing or conferences, but as "changing the world by spreading the knowledge of innovators."Today, the company offers over one dozen conferences: Strata + Hadoop World OSCON Fluent Velocity The Next:Economy Summit The Next:Money Summit The Solid Conference The O'Reilly Software Architecture Conference The O'Reilly Design Conference O'Reilly Emerging Technology Conference Tools of Change Conference Web 2.0 Summit Web 2.0 Expo MySQL Conference and Expo RailsConf Where 2.0 Money:Tech Gov 2.0 Expo and Gov 2.0 Summit O'Reilly school of technology will be discontinued as of January 6, 2016, new enrollments are no longer accepted.
In the late 1990s, O'Reilly founded the O'Reilly Network, which grew to include sites such as: LinuxDevCenter.com MacDevCenter.com WindowsDevCenter.com ONLamp.com O'Reilly RadarIn 2008 the company revised its online model and stopped publishing on several of its sites. The company produced dev2dev in association with BEA and java.net in association with Sun Microsystems and CollabNet. In 2001, O'Reilly launched Safari Books Online, a subscription-based service providing access to ebooks as a joint venture with the Pearson Technology Group. Safari Books Online includes books and video from Adobe Press, Alpha Books, Cisco Press, FT Press, Microsoft Press, New Riders Publishing, O'Reilly, Peachpit Press, Prentice Hall, Prentice Hall PTR, Que and Sams Publishing. In 2014, O'Reilly Media acquired Pearson's stake, making Safari Books Online a wholly owned subsidiary of O'Reilly Media. O'Reilly did a redesign of the site and has some success in the attempt to expand beyond Safari's core B2C market into the B2B Enterprise market.
In 2017, O'Reilly Media announced they were no longer selling books including eBooks. Instead, everyone was encouraged to sign up to Safari. In 2003, after the dot com bust, O'Reilly's corporate goal was to reignite enthusiasm in the computer industry. To do this, Dale Dougherty and Tim O'Reilly decided to use the term "Web 2.0" coined in January 1999 by Darcy DiNucci. The term was used for the Web 2.0 Summit run by O'Reilly TechWeb. CMP registered Web 2.0 as a Service Mark "for arranging and conducting live events, namely trade shows, business conferences and educational conferences in various fields of computers and information technology." Web 2.0 framed what distinguished the companies that survived the dot com bust from those that died, identified key drivers of future success, including what is now called “cloud computing,” big data, new approaches to iterative, data-driven software development. In May 2006 CMP Media learned of an impending event called the "Web 2.0 Half day conference."
Concerned over their obligation to take reasonable means to enforce their trade and service marks CMP sent a cease and desist letter to the non-profit Irish organizers of the event. This attempt to restrict through legal mechanisms the use of the term was criticized by some; the legal issue was resolved by O'Reilly's apologizing for the early and aggressive involvement of attorneys, rather than calling the organizers, allowing them to use the service mark for this single event. In January 2005 the compan
Toshiba Corporation is a Japanese multinational conglomerate headquartered in Tokyo, Japan. Its diversified products and services include information technology and communications equipment and systems, electronic components and materials, power systems and social infrastructure systems, consumer electronics, household appliances, medical equipment, office equipment, as well as lighting and logistics. Toshiba was founded in 1939 as Tokyo Shibaura Denki K. K. through the merger of Shibaura Seisaku-sho and Tokyo Denki. The company name was changed to Toshiba Corporation in 1978, it is listed on the Tokyo Stock Exchange, where it is a constituent of the Nikkei 225 and TOPIX indices, the Osaka Securities Exchange and the Nagoya Stock Exchange. Toshiba is the ninth largest semiconductor manufacturer in the world. In 2017, Toshiba filed unaudited quarterly results because of uncertainties at Westinghouse, which had filed for Chapter 11 bankruptcy protection. Toshiba stated that "substantial doubt about the company's ability to continue as a going concern exists".
Toshiba is organized into four groupings: the Digital Products Group, the Electronic Devices Group, the Home Appliances Group and the Social Infrastructure Group. Midea Group, a Chinese company, bought a controlling 80.1% stake in the Toshiba Home Appliances Group in 2016. Toshiba was founded in 1939 by the merger of Tokyo Denki. Shibaura Seisakusho had been founded as Tanaka Seisakusho by Tanaka Hisashige in July 1875 as Japan's first manufacturer of telegraph equipment. In 1904, it was renamed Shibaura Seisakusho. Through the first decades of the 20th century, Shibaura Seisakusho had become a major manufacturer of heavy electrical machinery as Japan modernized during the Meiji Era and became a world industrial power. Tokyo Denki was founded as Hakunetsusha in 1890 and had been Japan's first producer of incandescent electric lamps, it diversified into the manufacture of other consumer products and in 1899 had been renamed Tokyo Denki. The merger of Shibaura and Tokyo Denki created, it was soon nicknamed Toshiba, but it was not until 1978 that the company was renamed Toshiba Corporation.
The group expanded driven by a combination of organic growth and by acquisitions, buying heavy engineering and primary industry firms in the 1940s and 1950s. Groups created include Toshiba Music Industries/Toshiba EMI, Toshiba International Corporation Toshiba Electrical Equipment, Toshiba Chemical, Toshiba Lighting and Technology, Toshiba America Information Systems and Toshiba Carrier Corporation. Toshiba is responsible for a number of Japanese firsts, including radar, the TAC digital computer, transistor television and microwave oven, color video phone, Japanese word processor, MRI system, laptop personal computer, NAND EEPROM, DVD, the Libretto sub-notebook personal computer and HD DVD. In 1977, Toshiba acquired the Brazilian company Semp, subsequently forming Semp Toshiba through the combination of the two companies' South American operations. In 1987, Tocibai Machine, a subsidiary of Toshiba, was accused of illegally selling CNC milling machines used to produce quiet submarine propellers to the Soviet Union in violation of the CoCom agreement, an international embargo on certain countries to COMECON countries.
The Toshiba-Kongsberg scandal involved a subsidiary of Toshiba and the Norwegian company Kongsberg Vaapenfabrikk. The incident strained relations between the United States and Japan, resulted in the arrest and prosecution of two senior executives, as well as the imposition of sanctions on the company by both countries. Senator John Heinz of Pennsylvania said "What Toshiba and Kongsberg did was ransom the security of the United States for $517 million." In 2001, Toshiba signed a contract with Orion Electric, one of the world's largest OEM consumer video electronic makers and suppliers, to manufacture and supply finished consumer TV and video products for Toshiba to meet the increasing demand for the North American market. The contract ended in 2008. In December 2004, Toshiba announced it would discontinue manufacturing traditional in-house cathode-ray tube televisions. In 2006, Toshiba terminated production of in-house plasma TVs. To ensure its future competitiveness in the flat-panel digital television and display market, Toshiba has made a considerable investment in a new kind of display technology called SED.
Before World War II, Toshiba was a member of the Mitsui Group zaibatsu. Today Toshiba is a member of the Mitsui keiretsu, still has preferential arrangements with Mitsui Bank and the other members of the keiretsu. Membership in a keiretsu has traditionally meant loyalty, both corporate and private, to other members of the keiretsu or allied keiretsu; this loyalty can extend as far as the beer which in Toshiba's case is Asahi. In July 2005, BNFL confirmed it planned to sell Westinghouse Electric Company estimated to be worth $1.8 billion. The bid attracted interest from several companies including Toshiba, General Electric and Mitsubishi Heavy Industries and when the Financial Times reported on 23 January 2006 that Toshiba had won the bid, it valued the company's offer at $5 billion; the sale of Westinghouse by the Government of the United Kingdom surp