Even the name NLTSS was something of a legacy. The "New Livermore Time Sharing System" name was initially considered a temporary name to use during development. Once the system began to run some applications in a "dual system" mode (sort of a virtual machine sharing drivers with LTSS) a more permanent name, LINOS (LIncs Network Operating System), was chosen by the developers. Unfortunately, the management at LLNL decided that the name couldn't be changed at that point (seemingly because the previous term had been used in budget requests) so the temporary development "NLTSS" name stayed with the system throughout its lifetime.