|  | 11. | Multiprogramming doesn't give any guarantee that a program will run in a timely manner. 
 
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|  | 12. | Without multiprogramming a program was normally loaded into the " base " of memory, its notional location zero. 
 
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|  | 13. | Attempts to improve on the multiprogramming work stealer have focused on cache locality issues and improved queue data structures. 
 
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|  | 14. | In other words, the working set strategy prevents thrashing while keeping the degree of multiprogramming as high as possible. 
 
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|  | 15. | The system is most notable as the target processor for Edsger Dijkstra's implementation of the THE multiprogramming system. 
 
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|  | 16. | There were earlier 1100 systems going back to the 1100 Series computer designed for efficient support of multiprogramming and multiprocessing. 
 
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|  | 17. | To support multiprogramming, the 1108 had memory protection using two base and limit registers, with 512-word resolution. 
 
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|  | 18. | By the spring of 1969, a well-documented, reliable version of the RC 4000 multiprogramming system was running. 
 
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|  | 19. | Per Brinch Hansen introduced the concept of separation of policy and mechanism in operating systems in the RC 4000 multiprogramming system. 
 
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|  | 20. | To overcome this inefficiency, multiprogramming is now implemented in modern operating systems such as Linux, UNIX and Microsoft Windows. 
 
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