A Code Correlation Comparison of the DOS and CP/M Operating Systems - Journal of Software Engineering and Applications

JSEA > Vol.7 No.6, May 2014

Journal of Software Engineering and Applications

Volume 7, Issue 6 (May 2014)

ISSN Print: 1945-3116 ISSN Online: 1945-3124

Google-based Impact Factor: 1.22 Citations h5-index & Ranking

A Code Correlation Comparison of the DOS and CP/M Operating Systems ()

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DOI: 10.4236/jsea.2014.76048 7,948 Downloads 11,859 Views Citations

Author(s)

Robert Zeidman

Affiliation(s)

Zeidman Consulting, Cupertino, USA.

ABSTRACT

For years, rumors have circulated that the code for the original DOS operating system created by Microsoft for the IBM personal computer is actually copied from the CP/M operating system developed by Digital Research Incorporated. In this paper, scientifically tested and accepted forensic analysis mathematical techniques, step-by-step processes, and advanced software code comparison tools are used to compare early versions of the two code bases. The conclusion is reached that no copying of code takes place1.

KEYWORDS

DOS, CP/M, Copyright Infringement, Software Forensics, Software Correlation

Share and Cite:

Zeidman, R. (2014) A Code Correlation Comparison of the DOS and CP/M Operating Systems. Journal of Software Engineering and Applications, 7, 513-529. doi: 10.4236/jsea.2014.76048.

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