Threads made an early appearance in OS / 360 Multiprogramming with a Variable Number of Tasks ( MVT ) in 1967, in which context they were called " tasks ".
32.
The key problem in supporting multiprogramming was the need for programs to be loaded into different locations in memory, so that more than one could run at the same time.
33.
Time-sharing was developed in the late 1950s out of the realization that a single expensive computer could be efficiently utilized if a multitasking, multiprogramming operating system allowed multiple users simultaneous interactive access.
34.
Since the processing time is much less than a single job's runtime, the total time to service all " N " users with a multiprogramming system can be reduced to approximately:
35.
After some study they decided one up-and-coming area was multitasking ( then known as " multiprogramming " ), and started looking into ways for their computer to directly support it.
36.
In 2002, Brinch Hansen was awarded the IEEE Computer Pioneer Award For pioneering development in operating systems and concurrent programming exemplified by work on the RC 4000 multiprogramming system, monitors, and Concurrent Pascal .
37.
In order to differentiate themselves from the numerous models in this performance range, the FP-6000 would directly support multitasking, then known as " multiprogramming ", as well as be highly modular.
38.
:: : : : : : : We're talking about a multiprogramming system here; it's doing quite a lot of things and not spending any substantial portion of its time doing encryption.
39.
The term was popularized with the introduction of OS / 360 ( announced 1964 ), which featured Multiprogramming with a Fixed number of Tasks ( MFT ) and Multiprogramming with a Variable number of Tasks ( MVT ).
40.
The term was popularized with the introduction of OS / 360 ( announced 1964 ), which featured Multiprogramming with a Fixed number of Tasks ( MFT ) and Multiprogramming with a Variable number of Tasks ( MVT ).
