American History

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Issue:

American History

 

Written by:

John A

 

Date added:

October 10, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

1 / 260

 

Was viewed:

8339 times

 

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Essay content:

However, the end users were able to perform spreadsheet analysis and word processing for fewer than five thousand dollars as opposed to the multi-user mini and mainframe computers that were far more expensive and these tasks were very time-consuming to perform. 2. Threat of substitutes. Mainframes, minicomputers, and Apple PCs were "closed" and proprietary systems and could not be copied or cloned because of patents and copyrights...
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Threat of substitutes. Mainframes, minicomputers, and Apple PCs were "closed" and proprietary systems and could not be copied or cloned because of patents and copyrights. However, IBM entered the computer market in 1981, and changed the computer industry by offering an "open" system. The specifications of the IBM PC were easily obtainable which allowed independent software vendors to write programs that would run on different brands of PCs...
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