Computers in the context of Arithmetic


Computers in the context of Arithmetic

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⭐ Core Definition: Computers

A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations (computation). Modern digital electronic computers can perform generic sets of operations known as programs, which enable computers to perform a wide range of tasks. The term computer system may refer to a nominally complete computer that includes the hardware, operating system, software, and peripheral equipment needed and used for full operation; or to a group of computers that are linked and function together, such as a computer network or computer cluster.

A broad range of industrial and consumer products use computers as control systems, including simple special-purpose devices like microwave ovens and remote controls, and factory devices like industrial robots. Computers are at the core of general-purpose devices such as personal computers and mobile devices such as smartphones. Computers power the Internet, which links billions of computers and users.

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Computers in the context of Electronic literature

Electronic literature or digital literature is a genre of literature where digital capabilities such as interactivity, multimodality or algorithmic text generation are used aesthetically. Works of electronic literature are usually intended to be read on digital devices, such as computers, tablets, and mobile phones. They cannot be easily printed, or cannot be printed at all, because elements crucial to the work cannot be carried over onto a printed version.

The first literary works for computers, created in the 1950s, were computer programs that generated poems or stories, now called generative literature. In the 1960s experimental poets began to explore the new digital medium, and the first early text-based games were created. Interactive fiction became a popular genre in the late 1970s and 1980s, with a thriving online community in the 2000s. In the 1980s and 1990s hypertext fiction begun to be published, first on floppy disks and later on the web. Hypertext fictions are stories where the reader moves from page to page by selecting links. In the 2000s digital poetry became popular, often including animated text, images and interactivity. In the 2010s and 2020s, electronic literature uses social media platforms, with new genres like Instapoetry or Twitterature as well as literary practices like netprov. Although web-based genres like creepypasta and fan fiction are not always thought of as electronic literature (because they usually manifest as linear texts that could be printed out and read on paper), other scholars argue that these are born digital genres that depend on online communities and thus should be included in the field.

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Computers in the context of Computer graphics

Computer graphics deals with generating images and art with the aid of computers. Computer graphics is a core technology in digital photography, film, video games, digital art, cell phone and computer displays, and many specialized applications. A great deal of specialized hardware and software has been developed, with the displays of most devices being driven by computer graphics hardware. It is a vast and recently developed area of computer science. The phrase was coined in 1960 by computer graphics researchers Verne Hudson and William Fetter of Boeing. It is often abbreviated as CG, or typically in the context of film as computer generated imagery (CGI). The non-artistic aspects of computer graphics are the subject of computer science research.

Computer graphics is responsible for displaying art and image data effectively and meaningfully to the consumer. It is also used for processing image data received from the physical world, such as photo and video content. Computer graphics development has had a significant impact on many types of media and has revolutionized animation, movies, advertising, and video games in general.

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Computers in the context of Machine

A machine is a thermodynamic system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines. Machines can be driven by animals and people, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems.

Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input force, known today as mechanical advantage.

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Computers in the context of Computer file

A computer file is a collection of data on a computer storage device, primarily identified by its filename. Just as words can be written on paper, so too can data be written to a computer file. Files can be shared with and transferred between computers and mobile devices via removable media, networks, or the Internet.

Different types of computer files are designed for different purposes. A file may be designed to store a written message, a document, a spreadsheet, an image, a video, a program, or any wide variety of other kinds of data. Certain files can store multiple data types at once.

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Computers in the context of Task (computing)

In computing, a task is a unit of execution or a unit of work. The term is ambiguous; precise alternative terms include process, light-weight process, thread (for execution), step, request, or query (for work). In the adjacent diagram, there are queues of incoming work to do and outgoing completed work, and a thread pool of threads to perform this work. Either the work units themselves or the threads that perform the work can be referred to as "tasks", and these can be referred to respectively as requests/responses/threads, incoming tasks/completed tasks/threads (as illustrated), or requests/responses/tasks.

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Computers in the context of Distributed database

A distributed database is a database in which data is stored across different physical locations. It may be stored in multiple computers located in the same physical location (e.g. a data centre); or maybe dispersed over a network of interconnected computers. Unlike parallel systems, in which the processors are tightly coupled and constitute a single database system, a distributed database system consists of loosely coupled sites that share no physical components.

System administrators can distribute collections of data (e.g. in a database) across multiple physical locations. A distributed database can reside on organised network servers or decentralised independent computers on the Internet, on corporate intranets or extranets, or on other organisation networks. Because distributed databases store data across multiple computers, distributed databases may improve performance at end-user worksites by allowing transactions to be processed on many machines, instead of being limited to one.

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Computers in the context of Eporedia

Ivrea (Italian: [iˈvrɛːa]; Piedmontese: Ivrèja [iˈʋrɛja]; French: Ivrée; Latin: Eporedia) is a town and comune of the Metropolitan City of Turin in the Piedmont region of northwestern Italy. Situated on the road leading to the Aosta Valley (part of the medieval Via Francigena), it straddles the Dora Baltea and is regarded as the capital of the Canavese area.

Founded by the Romans under the name "Eporedia," the town became the center of the March of Ivrea during the Middle Ages and briefly served as the capital of the Kingdom of Italy in the 11th century. It later became part of the possessions of the House of Savoy. In the 20th century, Ivrea gained international recognition as the headquarters of the Olivetti company, a pioneer in technological innovation, known for creating some of the first computers. Thanks to Olivetti, the town also became a center of architectural innovation, with the construction of several modernist buildings that reflected the era's progressive spirit. On July 1, 2018, the site which is known as "Industrial City of the 20th Century" was listed as a UNESCO World Heritage Site.

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Computers in the context of Miniaturization

Miniaturization (Br.Eng.: miniaturisation) is the trend to manufacture ever-smaller mechanical, optical, and electronic products and devices. Examples include miniaturization of mobile phones, computers and vehicle engine downsizing. In electronics, the exponential scaling and miniaturization of silicon MOSFETs (MOS transistors) leads to the number of transistors on an integrated circuit chip doubling every two years, an observation known as Moore's law. This leads to MOS integrated circuits such as microprocessors and memory chips being built with increasing transistor density, faster performance, and lower power consumption, enabling the miniaturization of electronic devices.

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Computers in the context of Molecular logic gate

A molecular logic gate is a molecule that performs a logical operation based on at least one physical or chemical inputs and a single output. The field has advanced from simple logic systems based on a single chemical or physical input to molecules capable of combinatorial and sequential operations such as arithmetic operations (i.e. moleculators and memory storage algorithms). Molecular logic gates work with input signals based on chemical processes and with output signals based on spectroscopic phenomena.

Logic gates are the fundamental building blocks of computers, microcontrollers and other electrical circuits that require one or more logical operations. They can be used to construct digital architectures with varying degrees of complexity by a cascade of a few to several million logic gates, and are essentially physical devices that produce a singular binary output after performing logical operations based on Boolean functions on one or more binary inputs. The concept of molecular logic gates, extending the applicability of logic gates to molecules, aims to convert chemical systems into computational units. The field has evolved to realize several practical applications in fields such as molecular electronics, biosensing, DNA computing, nanorobotics, and cell imaging.  

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Computers in the context of Lofting

Lofting is a drafting technique to generate curved lines. It is used in plans for streamlined objects such as aircraft and boats. The lines may be drawn on wood and the wood then cut for advanced woodworking. The technique can be as simple as bending a flexible object, such as a long strip of thin wood or thin plastic, so that it passes over three non-linear points, and scribing the resultant curved line; or as elaborate as plotting the line using computers or mathematical tables.

Lofting is particularly useful in boat building, when it is used to draw and cut pieces for hulls and keels. These are usually curved, often in three dimensions. Loftsmen at the mould lofts of shipyards were responsible for taking the dimensions and details from drawings and plans, and translating this information into templates, battens, ordinates, cutting sketches, profiles, margins and other data. From the early 1970s onward computer-aided design (CAD) became normal for the shipbuilding design and lofting process.

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Computers in the context of Trade policy of the United States

The regulation of foreign trade is constitutionally vested in the United States Congress. After the Great Depression, the country emerged as among the most significant global trade policy-makers, and it is now a partner to a number of international trade agreements, including the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization (WTO). Gross U.S. assets held by foreigners were $16.3 trillion as of the end of 2006 (over 100% of GDP).

The United States is among the top three global importers and exporters. The country has trade relations with many other countries. Within that, the trade with Europe and Asia is predominant. To fulfill the demands of the industrial sector, the country has to import mineral oil and iron ore on a large scale. Machinery, cotton yarn, toys, mineral oil, lubricants, steel, tea, sugar, coffee, and many more items are traded. The country's export list includes food grains like wheat, corn, and soybeans, as well as aeroplanes, cars, computers, paper, and machine tools required for different industries. In 2016 United States current account balance was negative $469,400,000,000. U.S. manufacturers exported $1,365.31 billion in goods exports in 2019, with Canada, Mexico, China, Japan and the United Kingdom representing 35.44% of the export market.

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Computers in the context of Computers in the classroom

Computers in the classroom include any digital technology used to enhance, supplement, or replace a traditional educational curriculum with computer science education. As computers have become more accessible, inexpensive, and powerful, the demand for this technology has increased, leading to more frequent use of computer resources within classes, and a decrease in the student-to-computer ratio within schools.

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Computers in the context of Acoustic quieting

Acoustic quieting is the process of making machinery quieter by damping vibrations to prevent them from reaching an observer. Machinery vibrates, causing sound waves in air, hydroacoustic waves in water, and mechanical stresses in solid matter. Quieting is achieved by absorbing the vibrational energy or minimizing the source of the vibration. It may also be redirected away from an observer.

One of the major reasons for the development of acoustic quieting techniques was for making submarines difficult to detect by sonar. This military goal of the mid- and late-twentieth century allowed the technology to be adapted to many industries and products, such as computers (e.g. hard drive technology), automobiles (e.g. motor mounts), and even sporting goods (e.g. golf clubs).

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Computers in the context of MHealth

mHealth (also written as m-health or mhealth), an abbreviation for mobile health, is the practice of medicine and public health supported by mobile devices. The term is most commonly used in reference to using mobile communication devices, such as mobile phones, tablet computers and personal digital assistants (PDAs), and wearable devices such as smart watches, for health services, information, and data collection. The mHealth field has emerged as a sub-segment of eHealth and digital health, the use of information and communication technology (ICT), such as computers, mobile phones, communications satellite, patient monitors, etc., for health services and information. mHealth applications include the use of mobile devices in collecting community and clinical health data, delivery/sharing of healthcare information for practitioners, researchers and patients, real-time monitoring of patient vital signs, the direct provision of care (via mobile telemedicine) as well as training and collaboration of health workers.

In 2019, the global market for mHealth apps was estimated at US$17.92 billion, with a compound annual growth rate of 45% predicted from 2020 to 2027. While mHealth has application for industrialized nations, the field has emerged in recent years as largely an application for developing countries, stemming from the rapid rise of mobile phone penetration in low-income nations. The field, then, largely emerges as a means of providing greater access to larger segments of a population in developing countries, as well as improving the capacity of health systems in such countries to provide quality healthcare.Within the mHealth space, projects operate with a variety of objectives, including increased access to healthcare and health-related information (particularly for hard-to-reach populations); improved ability to diagnose and track diseases; timelier, more actionable public health information; and expanded access to ongoing medical education and training for health workers.

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