11 Facts About NLTSS

NLTSS ran initially on a CDC 7600 computer, but only ran production from about 1985 until 1994 on Cray computers including the Cray-1, Cray X-MP, and Cray Y-MP models.

NLTSS operating system was unusual in many respects and unique in some.

NLTSS was a true network operating system in that its resource requests could come from local processes or remote processes anywhere on the network and the servers didn't distinguish them.

Bulk of the programming for NLTSS was done in a Pascal extension developed at Los Alamos National Laboratory known as "Model".

NLTSS followed the development and deployment of the Livermore Time Sharing System in the Livermore Computer Center at LLNL.

Related searches

NLTSS development began about the same time LTSS was ported to the Cray-1 to become the Cray Time Sharing System.

NLTSS did support shared memory symmetric multiprocessing, a development that paralleled a similar development in the Cray Time Sharing System.

Unfortunately, the management at LLNL decided that the name couldn't be changed at that point so the temporary development NLTSS name stayed with the system throughout its lifetime.

For example, LINCS and NLTSS introduced a form of third party transfer that carried through in modified form to Unitree and HPSS.

The initial latencies for file operations under NLTSS were comparable to the latency for solid state disk access and significantly higher than the LTSS latency for such access.

In NLTSS processes were considered as virtual processors in a network with no firewalls or other restrictions.