In 1952, a major computing company

In 1952, a major computing company took a decision to get out of the business of making mainframe computers.They believed that there was only a market for four mainframes in the whole world.That company was IBM.The following year they reversed their decision.

In 1980,IBM decided that there was a market for 250,000 PCs,so they set up a special team to develop the first IBM PC.It went on sale in 1981 and set a world-wide standard for IBM-compatibility which,over the next ten years,was only seriously challenged by one other company,Apple Computers.Since then,over seventy million PCs made by IBM and other manufacturers have been sold.

Over this period,PCs have become commodity items.Since IBM made the design non-proprietary,anyone can make them.

The history of the multi-billion dollar PC industry has been one of mistakes.Xerox Corporation funded the initial research on so personal computers in their Palo Alto laboratory in California.However,the company failed to capitalize on this work,and the ideas that they put together went into the operating system development for Apple's computers.This was a graphical interface:using a mouse,the user clicks on icons which represent the function to be performed.

The first IBM PC was developed using existing available electrical components.With IBM's badge on the box it became the standard machine for large corporations to purchase.When IBM were looking for an operating system,they went initallly to digital research,who were market leaders in command-so based operating systems(these are operatin systems in which the users type in commands to perform a function).
When the collaboration between IBM and DIgital research failed,IBM turned to Bill Gates,then 25 years old,to write their operating system.Bill Gates founded Microsoft on the basic of the development of MS/DOC,the initial operating system for the IBM PC.DIgital research have continued to develop their operating system,DR/DOC,and it is considered by many people to be a better product than Microsoft's.
However,without an endorement from IBM,it has become a minor player in the market.Novell,the leaders in PC networking, now own Digital reasearch,so things may change.

Th original IBM PC had a minimum of 16k of memory,but this could be upgraded to 512k if necessary,and ran with a processor sped of 4.77MHz.Ten years later,in 1991,IBM were so making PCs with 16Mb of memory,expandable to 64Mb,running with a processor speed of 33MHz.
The cost of buying the hardware has come down considerably a the machines have become commodity items.Large companies are considering running major applications on PCs,somthing which,ten years ago,no one would have believed possible of a PC.In contrast,many computers in people's homes are just used to play computers games.

The widespread availability of computers has in all probability changed the world for ever.The microchip technology which make the PC possible has put chips not only into computers,but also into washing-machines and cars.

Some books may never be published in paper form,but may only be made available as part of public databases.Networks of computers are already being used to make information available on a world-no wide scale

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In 1952, a major computing company took a decision to get out of the business of making mainframe computers.They believed that there was only a market for four mainframes in the whole world.That company was IBM.The following year they reversed their decision.In 1980,IBM decided that there was a market for 250,000 PCs,so they set up a special team to develop the first IBM PC.It went on sale in 1981 and set a world-wide standard for IBM-compatibility which,over the next ten years,was only seriously challenged by one other company,Apple Computers.Since then,over seventy million PCs made by IBM and other manufacturers have been sold.Over this period,PCs have become commodity items.Since IBM made the design non-proprietary,anyone can make them.The history of the multi-billion dollar PC industry has been one of mistakes.Xerox Corporation funded the initial research on so personal computers in their Palo Alto laboratory in California.However,the company failed to capitalize on this work,and the ideas that they put together went into the operating system development for Apple's computers.This was a graphical interface:using a mouse,the user clicks on icons which represent the function to be performed.Первый IBM PC был разработан с использованием существующих имеющихся электрических компонентов. С IBM badge на коробке стала Стандартная машина для крупных корпораций, чтобы купить. Когда IBM искали операционной системы, они пошли initallly цифровые исследования, которые были лидерами рынка командования Су на базе операционных систем (они operatin системы, в которых пользователи вводят в команды для выполнения функции).При сотрудничестве между IBM и цифровых исследований, IBM повернулся к Билл Гейтс, то 25 лет, чтобы написать свою операционную систему. Билл Гейтс основал Microsoft на основном развития MS/DOC, первоначальный операционную систему для IBM PC. Цифровые исследования по-прежнему развивать свою операционную систему, DR/DOC, и считается многими, чтобы быть продукт лучше, чем Microsoft.Однако без endorement от IBM, стало несовершеннолетнего игроком на рынке. Novell, лидеры в компьютерные сети, теперь собственный цифровой reasearch, так что все может измениться.TH оригинального IBM PC было минимум 16 КБ памяти, но это может быть повышен до 512k в случае необходимости и побежал с процессором sped от 4.77MHz.Ten лет спустя, в 1991 году, IBM так делают ПК с 16 МБ памяти, расширяемой до 64 МБ, с процессором частотой 33 МГц.Стоимость покупки оборудования значительно спуститься машины стали товарным позициям. Крупные компании рассматривают возможность выполнения основных приложений на ПК, то, что десять лет назад никто бы не поверил возможности ПК. В отличие от многих компьютеров в домах людей просто использовали для игры компьютеры.Широкая доступность компьютеров по всей вероятности, изменило мир навсегда. Микрочип технологии, которые делают возможным PC поставил фишки не только на компьютеры, но и в стиральных машин и автомобилей.Некоторые книги никогда не могут быть опубликованы в бумажной форме, но могут только быть доступны как часть общественного databases.Networks компьютеров уже используются для доступности информации мира не широко