---
layout: page
title: PDP-11/20 Machine Configurations
permalink: /devices/pdp11/machine/1120/
---

PDP-11/20 Machine Configurations
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PDPjs supports a variety of PDP-11/20 machine configurations, including:

* [PDP-11/20 BASIC Demo](/devices/pdp11/machine/1120/basic/)
* [PDP-11/20 Bootstrap Loader Demo](/devices/pdp11/machine/1120/bootstrap/)
* [PDP-11/20 Boot Monitor](/devices/pdp11/machine/1120/monitor/)
* [PDP-11/20 with Front Panel](/devices/pdp11/machine/1120/panel)

The "Demo" machines come with 16Kb of RAM and a [PC11 Paper Tape Reader](/devices/pdp11/pc11/).  All the other machines
are configured with 56Kb of RAM.