In computing, a web application or web app is a client–server computer program which the client runs in a web browser. Common web applications include webmail, online retail sales, online auction; the general distinction between a dynamic web page of any kind and a "web application" is unclear. Web sites most to be referred to as "web applications" are those which have similar functionality to a desktop software application, or to a mobile app. HTML5 introduced explicit language support for making applications that are loaded as web pages, but can store data locally and continue to function while offline. Single-page applications are more application-like because they reject the more typical web paradigm of moving between distinct pages with different URLs. Single-page frameworks like Sencha Touch and AngularJS might be used to speed development of such a web app for a mobile platform. There are several ways of targeting mobile devices when making a web application: Responsive web design can be used to make a web application - whether a conventional website or a single-page application viewable on small screens and work well with touchscreens.
Progressive Web Apps are web applications that load like regular web pages or websites but can offer the user functionality such as working offline, push notifications, device hardware access traditionally available only to native mobile applications. Native apps or "mobile apps" run directly on a mobile device, just as a conventional software application runs directly on a desktop computer, without a web browser. Frameworks like React Native, Flutter and FuseTools allow the development of native apps for all platforms using languages other than each standard native language. Hybrid apps embed a mobile web site inside a native app using a hybrid framework like Apache Cordova and Ionic or Appcelerator Titanium; this allows development using web technologies while retaining certain advantages of native apps. In earlier computing models like client–server, the processing load for the application was shared between code on the server and code installed on each client locally. In other words, an application had its own pre-compiled client program which served as its user interface and had to be separately installed on each user's personal computer.
A website or Web site is a collection of related network web resources, such as web pages, multimedia content, which are identified with a common domain name, published on at least one web server. Notable examples are wikipedia.org, google.com, amazon.com. Websites can be accessed via a public Internet Protocol network, such as the Internet, or a private local area network, by a uniform resource locator that identifies the site. Websites can be used in various fashions. Websites are dedicated to a particular topic or purpose, ranging from entertainment and social networking to providing news and education. All publicly accessible websites collectively constitute the World Wide Web, while private websites, such as a company's website for its employees, are part of an intranet. Web pages, which are the building blocks of websites, are documents composed in plain text interspersed with formatting instructions of Hypertext Markup Language, they may incorporate elements from other websites with suitable markup anchors.
Web pages are accessed and transported with the Hypertext Transfer Protocol, which may optionally employ encryption to provide security and privacy for the user. The user's application a web browser, renders the page content according to its HTML markup instructions onto a display terminal. Hyperlinking between web pages conveys to the reader the site structure and guides the navigation of the site, which starts with a home page containing a directory of the site web content; some websites require user subscription to access content. Examples of subscription websites include many business sites, news websites, academic journal websites, gaming websites, file-sharing websites, message boards, web-based email, social networking websites, websites providing real-time stock market data, as well as sites providing various other services. End users can access websites on a range of devices, including desktop and laptop computers, tablet computers and smart TVs; the World Wide Web was created in 1990 by the British CERN physicist Tim Berners-Lee.
On 30 April 1993, CERN announced. Before the introduction of HTML and HTTP, other protocols such as File Transfer Protocol and the gopher protocol were used to retrieve individual files from a server; these protocols offer a simple directory structure which the user navigates and where they choose files to download. Documents were most presented as plain text files without formatting, or were encoded in word processor formats. Websites can be used in various fashions. Websites can be the work of an individual, a business or other organization, are dedicated to a particular topic or purpose. Any website can contain a hyperlink to any other website, so the distinction between individual sites, as perceived by the user, can be blurred. Websites are written in, or converted to, HTML and are accessed using a software interface classified as a user agent. Web pages can be viewed or otherwise accessed from a range of computer-based and Internet-enabled devices of various sizes, including desktop computers, tablet computers and smartphones.
A website is hosted on a computer system known as a web server called an HTTP server. These terms can refer to the software that runs on these systems which retrieves and delivers the web pages in response to requests from the website's users. Apache is the most used web server software and Microsoft's IIS is commonly used; some alternatives, such as Nginx, Hiawatha or Cherokee, are functional and lightweight. A static website is one that has web pages stored on the server in the format, sent to a client web browser, it is coded in Hypertext Markup Language. Images are used to effect the desired appearance and as part of the main content. Audio or video might be considered "static" content if it plays automatically or is non-interactive; this type of website displays the same information to all visitors. Similar to handing out a printed brochure to customers or clients, a static website will provide consistent, standard information for an extended period of time. Although the website owner may make updates periodically, it is a manual process to edit the text and other content and may require basic website design skills and software.
Simple forms or marketing examples of websites, such as classic website, a five-page website or a brochure website are static websites, because they present pre-defined, static information to the user. This may include information about a company and its products and services through text, animations, audio/video, navigation menus. Static websites can be edited using four broad categories of software: Text editors, such as Notepad or TextEdit, where content and HTML markup are manipulated directly within the editor program WYSIWYG offline editors, such as Microsoft FrontPage and Adobe Dreamweaver, with which the site is edited using a GUI and the final HTML markup is generated automatically by the editor software WYSIWYG online editors which create media rich online presentation like web pages, intro, blogs, an
A journalist is a person who collects, writes, or distributes news or other current information to the public. A journalist's work is called journalism. A journalist can specialize in certain issues. However, most journalists tend to specialize, by cooperating with other journalists, produce journals that span many topics. For example, a sports journalist covers news within the world of sports, but this journalist may be a part of a newspaper that covers many different topics. A reporter is a type of journalist who researches and reports on information in order to present in sources, conduct interviews, engage in research, make reports; the information-gathering part of a journalist's job is sometimes called reporting, in contrast to the production part of the job such as writing articles. Reporters may split their time between working in a newsroom and going out to witness events or interviewing people. Reporters may be assigned a specific area of coverage. Depending on the context, the term journalist may include various types of editors, editorial writers and visual journalists, such as photojournalists.
Journalism has developed a variety of standards. While objectivity and a lack of bias are of primary concern and importance, more liberal types of journalism, such as advocacy journalism and activism, intentionally adopt a non-objective viewpoint; this has become more prevalent with the advent of social media and blogs, as well as other platforms that are used to manipulate or sway social and political opinions and policies. These platforms project extreme bias, as "sources" are not always held accountable or considered necessary in order to produce a written, televised, or otherwise "published" end product. Matthew C. Nisbet, who has written on science communication, has defined a "knowledge journalist" as a public intellectual who, like Walter Lippmann, David Brooks, Fareed Zakaria, Naomi Klein, Michael Pollan, Thomas Friedman, Andrew Revkin, sees their role as researching complicated issues of fact or science which most laymen would not have the time or access to information to research themselves communicating an accurate and understandable version to the public as a teacher and policy advisor.
In his best-known books, Public Opinion and The Phantom Public, Lippmann argued that most individuals lacked the capacity and motivation to follow and analyze news of the many complex policy questions that troubled society. Nor did they directly experience most social problems, or have direct access to expert insights; these limitations were made worse by a news media that tended to over-simplify issues and to reinforce stereotypes, partisan viewpoints, prejudices. As a consequence, Lippmann believed that the public needed journalists like himself who could serve as expert analysts, guiding “citizens to a deeper understanding of what was important.” In 2018, the United States Department of Labor's Occupational Outlook Handbook reported that employment for the category, "reporters and broadcast news analysts," will decline 9 percent between 2016 and 2026. Journalists sometimes expose themselves to danger when reporting in areas of armed conflict or in states that do not respect the freedom of the press.
Organizations such as the Committee to Protect Journalists and Reporters Without Borders publish reports on press freedom and advocate for journalistic freedom. As of November 2011, the Committee to Protect Journalists reports that 887 journalists have been killed worldwide since 1992 by murder, crossfire or combat, or on dangerous assignment; the "ten deadliest countries" for journalists since 1992 have been Iraq, Russia, Mexico, Pakistan, Somalia and Sri Lanka. The Committee to Protect Journalists reports that as of December 1, 2010, 145 journalists were jailed worldwide for journalistic activities. Current numbers are higher; the ten countries with the largest number of currently-imprisoned journalists are Turkey, Iran, Burma, Vietnam, Cuba and Sudan. Apart from the physical harm, journalists are harmed psychologically; this applies to war reporters, but their editorial offices at home do not know how to deal appropriately with the reporters they expose to danger. Hence, a systematic and sustainable way of psychological support for traumatized journalists is needed.
However, only little and fragmented support programs exist so far. The Newseum in Washington, D. C. is home to the Journalists Memorial, which lists the names of over 2,100 journalists from around the world who were killed in the line of duty. The relationship between a professional journalist and a source can be rather complex, a source can sometimes impact the direction of the article written by the journalist; the article'A Compromised Fourth Estate' uses Herbert Gans' metaphor to capture their relationship. He uses a dance metaphor'The Tango' to illustrate the co-operative nature of their interactions "It takes two to tango". Herbert suggests that the source leads but journalists object to this notion for two reasons: It signals source supremacy in news making, it offends journalists' professional culture, which emphasizes editorial autonomy. This dance metaphor helps showcase consensus within the relationship but the article describe the common relation between the two "A relationship with sources, too cozy is compromising of journalists’ integrity and risks becoming collusive.
Journalists have favored a
Information technology is the use of computers to store, retrieve and manipulate data, or information in the context of a business or other enterprise. IT is considered to be a subset of communications technology. An information technology system is an information system, a communications system or, more speaking, a computer system – including all hardware and peripheral equipment – operated by a limited group of users. Humans have been storing, retrieving and communicating information since the Sumerians in Mesopotamia developed writing in about 3000 BC, but the term information technology in its modern sense first appeared in a 1958 article published in the Harvard Business Review. We shall call it information technology." Their definition consists of three categories: techniques for processing, the application of statistical and mathematical methods to decision-making, the simulation of higher-order thinking through computer programs. The term is used as a synonym for computers and computer networks, but it encompasses other information distribution technologies such as television and telephones.
Several products or services within an economy are associated with information technology, including computer hardware, electronics, internet, telecom equipment, e-commerce. Based on the storage and processing technologies employed, it is possible to distinguish four distinct phases of IT development: pre-mechanical, electromechanical, electronic; this article focuses on the most recent period, which began in about 1940. Devices have been used to aid computation for thousands of years initially in the form of a tally stick; the Antikythera mechanism, dating from about the beginning of the first century BC, is considered to be the earliest known mechanical analog computer, the earliest known geared mechanism. Comparable geared devices did not emerge in Europe until the 16th century, it was not until 1645 that the first mechanical calculator capable of performing the four basic arithmetical operations was developed. Electronic computers, using either valves, began to appear in the early 1940s.
The electromechanical Zuse Z3, completed in 1941, was the world's first programmable computer, by modern standards one of the first machines that could be considered a complete computing machine. Colossus, developed during the Second World War to decrypt German messages, was the first electronic digital computer. Although it was programmable, it was not general-purpose, being designed to perform only a single task, it lacked the ability to store its program in memory. The first recognisably modern electronic digital stored-program computer was the Manchester Baby, which ran its first program on 21 June 1948; the development of transistors in the late 1940s at Bell Laboratories allowed a new generation of computers to be designed with reduced power consumption. The first commercially available stored-program computer, the Ferranti Mark I, contained 4050 valves and had a power consumption of 25 kilowatts. By comparison the first transistorised computer, developed at the University of Manchester and operational by November 1953, consumed only 150 watts in its final version.
Early electronic computers such as Colossus made use of punched tape, a long strip of paper on which data was represented by a series of holes, a technology now obsolete. Electronic data storage, used in modern computers, dates from World War II, when a form of delay line memory was developed to remove the clutter from radar signals, the first practical application of, the mercury delay line; the first random-access digital storage device was the Williams tube, based on a standard cathode ray tube, but the information stored in it and delay line memory was volatile in that it had to be continuously refreshed, thus was lost once power was removed. The earliest form of non-volatile computer storage was the magnetic drum, invented in 1932 and used in the Ferranti Mark 1, the world's first commercially available general-purpose electronic computer. IBM introduced the first hard disk drive as a component of their 305 RAMAC computer system. Most digital data today is still stored magnetically on hard disks, or optically on media such as CD-ROMs.
Until 2002 most information was stored on analog devices, but that year digital storage capacity exceeded analog for the first time. As of 2007 94% of the data stored worldwide was held digitally: 52% on hard disks, 28% on optical devices and 11% on digital magnetic tape, it has been estimated that the worldwide capacity to store information on electronic devices grew from less than 3 exabytes in 1986 to 295 exabytes in 2007, doubling every 3 years. Database management systems emerged in the 1960s to address the problem of storing and retrieving large amounts of data and quickly. One of the earliest such systems was IBM's Information Management System, still deployed more than 50 years later. IMS stores data hierarchically, but in the 1970s Ted Codd proposed an alternative relational storage model based on set theory and predicate logic and the familiar concepts of tables and columns; the first commercially available relational database management system was available from Oracle in 1981. All database management systems consist of a number of components that together allow the data they store to be accessed simultan
A blog is a discussion or informational website published on the World Wide Web consisting of discrete informal diary-style text entries. Posts are displayed in reverse chronological order, so that the most recent post appears first, at the top of the web page; until 2009, blogs were the work of a single individual of a small group, covered a single subject or topic. In the 2010s, "multi-author blogs" emerged, featuring the writing of multiple authors and sometimes professionally edited. MABs from newspapers, other media outlets, think tanks, advocacy groups, similar institutions account for an increasing quantity of blog traffic; the rise of Twitter and other "microblogging" systems helps integrate MABs and single-author blogs into the news media. Blog can be used as a verb, meaning to maintain or add content to a blog; the emergence and growth of blogs in the late 1990s coincided with the advent of web publishing tools that facilitated the posting of content by non-technical users who did not have much experience with HTML or computer programming.
A knowledge of such technologies as HTML and File Transfer Protocol had been required to publish content on the Web, early Web users therefore tended to be hackers and computer enthusiasts. In the 2010s, the majority are interactive Web 2.0 websites, allowing visitors to leave online comments, it is this interactivity that distinguishes them from other static websites. In that sense, blogging can be seen as a form of social networking service. Indeed, bloggers do not only produce content to post on their blogs, but often build social relations with their readers and other bloggers. However, there are high-readership blogs. Many blogs provide commentary on topic, ranging from politics to sports. Others function as more personal online diaries, others function more as online brand advertising of a particular individual or company. A typical blog combines text, digital images, links to other blogs, web pages, other media related to its topic; the ability of readers to leave publicly viewable comments, interact with other commenters, is an important contribution to the popularity of many blogs.
However, blog owners or authors moderate and filter online comments to remove hate speech or other offensive content. Most blogs are textual, although some focus on art, videos and audio. In education, blogs can be used as instructional resources; these blogs are referred to as edublogs. Microblogging is another type of blogging, featuring short posts. On 16 February 2011, there were over 156 million public blogs in existence. On 20 February 2014, there were around 172 million Tumblr and 75.8 million WordPress blogs in existence worldwide. According to critics and other bloggers, Blogger is the most popular blogging service used today. However, Blogger does not offer public statistics. Technorati lists 1.3 million blogs as of February 22, 2014. The term "weblog" was coined by Jorn Barger on 17 December 1997; the short form, "blog", was coined by Peter Merholz, who jokingly broke the word weblog into the phrase we blog in the sidebar of his blog Peterme.com in April or May 1999. Shortly thereafter, Evan Williams at Pyra Labs used "blog" as both a noun and verb and devised the term "blogger" in connection with Pyra Labs' Blogger product, leading to the popularization of the terms.
Before blogging became popular, digital communities took many forms including Usenet, commercial online services such as GEnie, Byte Information Exchange and the early CompuServe, e-mail lists, Bulletin Board Systems. In the 1990s, Internet forum software created running conversations with "threads". Threads are topical connections between messages on a virtual "corkboard". From 14 June 1993, Mosaic Communications Corporation maintained their "What’s New" list of new websites, updated daily and archived monthly; the page was accessible by a special ``. The earliest instance of a commercial blog was on the first business to consumer Web site created in 1995 by Ty, Inc. which featured a blog in a section called "Online Diary". The entries were maintained by featured Beanie Babies that were voted for monthly by Web site visitors; the modern blog evolved from the online diary where people would keep a running account of the events in their personal lives. Most such writers journalers. Justin Hall, who began personal blogging in 1994 while a student at Swarthmore College, is recognized as one of the earlier bloggers, as is Jerry Pournelle.
Dave Winer's Scripting News is credited with being one of the older and longer running weblogs. The Australian Netguide magazine maintained the Daily Net News on their web site from 1996. Daily Net News ran links and daily reviews of new websites in Australia. Another early blog was Wearable Wireless Webcam, an online shared diary of a person's personal life combining text, digital video, digital pictures transmitted live from a wearable computer and EyeTap device to a web site in 1994; this practice of semi-automated blogging with live video together with text was referred to as sousveillance, such journals were used as evidence in legal matters. Some early bloggers, such as The Misanthropic Bitch, who began in 1997 referred to their online presence as a zine, before the term blog entered common usage. Early blogs were manually updated components of common Websites. In 1995, the "Online Diary" on
Entrepreneurship is the process of designing and running a new business, initially a small business. The people who create these businesses are called entrepreneurs. Entrepreneurship has been described as the "capacity and willingness to develop and manage a business venture along with any of its risks in order to make a profit". While definitions of entrepreneurship focus on the launching and running of businesses, due to the high risks involved in launching a start-up, a significant proportion of start-up businesses have to close due to "lack of funding, bad business decisions, an economic crisis, lack of market demand—or a combination of all of these. A broader definition of the term is sometimes used in the field of economics. In this usage, an Entrepreneur is an entity which has the ability to find and act upon opportunities to translate inventions or technology into new products: "The entrepreneur is able to recognize the commercial potential of the invention and organize the capital and other resources that turn an invention into a commercially viable innovation."
In this sense, the term "Entrepreneurship" captures innovative activities on the part of established firms, in addition to similar activities on the part of new businesses. Entrepreneurship is the act of being an entrepreneur, or "the owner or manager of a business enterprise who, by risk and initiative, attempts to make profits". Entrepreneurs oversee the launch and growth of an enterprise. Entrepreneurship is the process by which either an individual or a team identifies a business opportunity and acquires and deploys the necessary resources required for its exploitation. Early-19th-century French economist Jean-Baptiste Say provided a broad definition of entrepreneurship, saying that it "shifts economic resources out of an area of lower and into an area of higher productivity and greater yield". Entrepreneurs create something new, something different—they change or transmute values. Regardless of the firm size, big or small, they can partake in entrepreneurship opportunities; the opportunity to become an entrepreneur requires four criteria.
First, there must be situations to recombine resources to generate profit. Second, entrepreneurship requires differences between people, such as preferential access to certain individuals or the ability to recognize information about opportunities. Third, taking on risk is a necessity. Fourth, the entrepreneurial process requires the organization of resources; the entrepreneur is a factor in and the study of entrepreneurship reaches back to the work of Richard Cantillon and Adam Smith in the late 17th and early 18th centuries. However, entrepreneurship was ignored theoretically until the late 19th and early 20th centuries and empirically until a profound resurgence in business and economics since the late 1970s. In the 20th century, the understanding of entrepreneurship owes much to the work of economist Joseph Schumpeter in the 1930s and other Austrian economists such as Carl Menger, Ludwig von Mises and Friedrich von Hayek. According to Schumpeter, an entrepreneur is a person, willing and able to convert a new idea or invention into a successful innovation.
Entrepreneurship employs what Schumpeter called "the gale of creative destruction" to replace in whole or in part inferior innovations across markets and industries creating new products including new business models. In this way, creative destruction is responsible for the dynamism of industries and long-run economic growth; the supposition that entrepreneurship leads to economic growth is an interpretation of the residual in endogenous growth theory and as such is hotly debated in academic economics. An alternative description posited by Israel Kirzner suggests that the majority of innovations may be much more incremental improvements such as the replacement of paper with plastic in the making of drinking straws; the exploitation of entrepreneurial opportunities may include: Developing a business plan Hiring the human resources Acquiring financial and material resources Providing leadership Being responsible for both the venture's success or failure Risk aversionEconomist Joseph Schumpeter saw the role of the entrepreneur in the economy as "creative destruction" – launching innovations that destroy old industries while ushering in new industries and approaches.
For Schumpeter, the changes and "dynamic disequilibrium brought on by the innovating entrepreneur the norm of a healthy economy". While entrepreneurship is associated with new, for-profit start-ups, entrepreneurial behavior can be seen in small-, medium- and large-sized firms and established firms and in for-profit and not-for-profit organizations, including voluntary-sector groups, charitable organizations and government. Entrepreneurship may operate within an entrepreneurship ecosystem which includes: Government programs and services that promote entrepreneurship and support entrepreneurs and start-ups Non-governmental organizations such as small-business associations and organizations that offer advice and mentoring to entrepreneurs Small-business advocacy organizations that lobby governments for increased support for entrepreneurship programs and more small business-friendly laws and regulations Entrepreneurship resources and facilities Entrepreneurship education and training programs offered by schools and universities Financing In the 2000s, usage of the term "entrepreneurship" expanded to include how and why some individuals ide