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Real-Time Multiprogramming Operating System
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<h2 id="references">References</h2> <ol> <li id="fn:1"><p>GE-PAC 4020 Programming Manual. General Electric. 1967. p. 5. Retrieved 2013-09-27. <a href="https://archive.org/details/bitsavers_gePAC4000P0PgmgManOct67_6687740/mode/1up" target="_blank">https://archive.org/details/bitsavers_gePAC4000P0PgmgManOct67_6687740/mode/1up</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Spang, H. A. III (January 1972). "The structure and comparison of three real-time operating systems for process control". Automatica. 8 (1): 49–64. doi:10.1016/0005-1098(72)90009-X. Retrieved 23 August 2013. <a href="http://dl.acm.org/citation.cfm?id=2244947" target="_blank">http://dl.acm.org/citation.cfm?id=2244947</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Spang, H. A. III (1974). Measurement and Improvement of Memory Allocation in a Process Computer. 4th IFAC/IFIP International Conference on Digital Computer Applications to Process Control. Vol. 93. pp. 236–247. doi:10.1007/978-3-642-65796-2_20. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>GE-PAC 4020 Programming Manual. General Electric. 1967. p. 5. Retrieved 2013-09-27. <a href="https://archive.org/details/bitsavers_gePAC4000P0PgmgManOct67_6687740/mode/1up" target="_blank">https://archive.org/details/bitsavers_gePAC4000P0PgmgManOct67_6687740/mode/1up</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>