RT-11 ('RT' for Real Time) was a small, single-user real-time operating system for the Digital Equipment Corporation PDP-11 family of 16-bit computers. RT-11 was first implemented in 1970 and was widely used for real-time systems, process control, and data acquisition across the full line of PDP-11 computers.
RT-11 systems did not support preemptive multitasking, but most versions could run multiple simultaneous applications. All variants of the ...
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RT-11 ('RT' for Real Time) was a small, single-user real-time operating system for the Digital Equipment Corporation PDP-11 family of 16-bit computers. RT-11 was first implemented in 1970 and was widely used for real-time systems, process control, and data acquisition across the full line of PDP-11 computers.
RT-11 systems did not support preemptive multitasking, but most versions could run multiple simultaneous applications. All variants of the monitors provided a Background Job. The FB, XM and ZM monitors also provided a Foreground Job, as well as six System Jobs if selected via the SYSGEN System Generation program. These tasks had fixed priorities, with the Background Job lowest and the Foreground Job highest. It was possible to switch between jobs from the system console user interface, and SYSGEN could generate a monitor that provided a single Background Job (the SB, XB and ZB variants).
RT-11 was written in assembly language. Heavy use of the conditional assembly and macro...
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