virtualhub.eu.org/docs/start-here/dec/pdp11.md

---
keywords: ["PDP-11", "DEC", "Start Here", "VirtualHub"]
description: "PDP-11 operating systems made by DEC."
sidebar_position: 3
sidebar_label: PDP-11
---

# DEC PDP-11 Operating Systems

These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-11](https://en.wikipedia.org/wiki/PDP-11) computers.

- [! CAPS-11](/1970s/1970/caps-11/)
- [! DOS-11](/1970s/1970/dos-11/)
- [! RSTS-11 v4B](/1970s/1975/rsts-11-v4b/)
- [! RT-11 v2](/1970s/1975/rt-11-v2/)
Separate DEC OSs 2024-01-09 08:55:16 +01:00			`---`
			`keywords: ["PDP-11", "DEC", "Start Here", "VirtualHub"]`
			`description: "PDP-11 operating systems made by DEC."`
			`sidebar_position: 3`
			`sidebar_label: PDP-11`
			`---`

			`# DEC PDP-11 Operating Systems`

			`These operating systems were made by [DEC](https://en.wikipedia.org/wiki/Digital_Equipment_Corporation) for their [PDP-11](https://en.wikipedia.org/wiki/PDP-11) computers.`

			`- [! CAPS-11](/1970s/1970/caps-11/)`
add dos-11 main page 2024-01-11 07:10:18 +01:00			`- [! DOS-11](/1970s/1970/dos-11/)`
rsts-11-v4b on simh 2024-06-05 16:06:52 +02:00			`- [! RSTS-11 v4B](/1970s/1975/rsts-11-v4b/)`
RT-11 v2 2024-08-09 09:43:37 +02:00			`- [! RT-11 v2](/1970s/1975/rt-11-v2/)`