Human-computer interaction (HCI) is research in the design and the use of computer technology, which focuses on the interfaces between people (users) and computers. HCI researchers observe the ways humans interact with computers and design technologies that allow humans to interact with computers in novel ways. A device that allows interaction between human being and a computer is known as a "Human-computer Interface (HCI)". As a field of research, human-computer interaction is situated at the intersection of computer science, behavioral sciences, design, media studies, and several other fields of study. The term was popularized by Stuart K. Card, Allen Newell, and Thomas P. Moran in their 1983 book, The Psychology of Human-Computer Interaction. The first known use was in 1975 by Carlisle. The term is intended to convey that, unlike other tools with specific and limited uses, computers have many uses which often involve an open-ended dialogue between the user and the computer.
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Supercomputer is a broad term for one of the fastest computers currently available. Supercomputers are very expensive and are employed for specialized applications that require immense amounts of mathematical calculations (number crunching). For example, weather forecasting requires a supercomputer. Other uses of supercomputers scientific simulations, (animated) graphics, fluid dynamic calculations, nuclear energy research, electronic design, and analysis of geological data (e.g. in petrochemical prospecting). Perhaps the best known supercomputer manufacturer is Cray Research. Mainframe was a term originally referring to the cabinet containing the central processor unit or "main frame" of a room-filling Stone Age batch machine. After the emergence of smaller "minicomputer" designs in the early 1970s, the traditional big iron machines were described as "mainframe computers" and eventually just as mainframes. Nowadays a Mainframe is a very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. The chief difference between a supercomputer and a mainframe is that a supercomputer channels all its power into executing a few programs as fast as possible, whereas a mainframe uses its power to execute many programs concurrently.
Your computer is a valuable gadget and you should only entrust it to the most qualified repair company. An experienced computer repair company knows what to do and how to do it. But, should you rely solely on the time the computer repair company has been in the industry? Perhaps not. Some questions you might ask to make a better decision include: What are the charges per hour? How long does it take to repair your computer? Will the computer repair company save your record? These are three important questions worth asking. For the best delivery computer repair companies usually charge by the hour. The shortcoming of a computer repair company that charges you in one go is that they might end up overcharging you for a small amount of repair work. Experienced computer repair companies usually have dealt with different types of computer problems. As a result, an experienced computer repair company is able to tell relatively easily, how long it will take to repair your computer.
Can I Run It? System Requirements Lab analyzes your computer in just seconds, and it's FREE. See for yourself, takes less than a minute. The question of Can I run a PC game has been answered here hundreds of millions of times since 2005. Find out now if your computer can run any popular PC game. Can You Run It? System Requirement Labs has tracked over 8,500 of the latest PC game requirements. Check out individual games pages to answer the most important question: CAN I RUN IT? These are the most popular games in the last 30 days. New from Can You Run It, now you can test your computer once and see all of the games your computer can run. We will analyze your computer against 8,500 of the newest and most popular games on the market. Both for Minimum and Recommended requirements. What Will Run It? Below are some gaming computers with images that show how many games will run on each.
It is also possible for a single programmer to do most or all of the computer programming needed to generate the proof of concept to launch a new "killer" application. A programmer, computer programmer, or coder is a person who writes computer software. The term "computer programmer" can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst. Java, Lisp, Python, etc.) is often prefixed to the above titles, and those who work in a web environment often prefix their titles with "Web". The term "programmer" can be used to refer to a software developer, software engineer, computer scientist, or software analyst. However, members of these professions typically possess other software engineering skills, beyond programming. The computer industry is made up of businesses involved in developing computer software, designing computer hardware and computer networking infrastructures, manufacturing computer components and providing information technology services, including system administration and maintenance.
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