PDP-11/20 test machine can load BASIC from paper tape, but still has some trouble running it

devices/pdp11/README.md

@@ -7,11 +7,15 @@ permalink: /devices/pdp11/
 PDP-11 Device Configurations
 ----------------------------
 
-[PDP-11 Machines](/devices/pdp11/machine/) powered by [PDPjs](/modules/pdp11/) rely on a variety of devices and resources, including:
+[PDP-11 Machines](/devices/pdp11/machine/) powered by [PDPjs](/modules/pdp11/) rely on a variety of devices, including:
+ 
+- [Serial Interface for Display Terminals (DL11)](dl11/)
+- [High-Speed Paper Tape Reader/Punch (PC11)](pc11/)
+
+Machines are built from a variety of device configuration files, including:
 
 * [Machines](machine/)
 * [Panels](panel/)
-* [ROM Images](rom/)
 
 Our collection of sample machines includes a
 [PDP-11/70 with Front Panel](/devices/pdp11/machine/1170/panel/) and [PDP-11/70 with VT100 Terminal](/devices/pdp11/machine/1170/vt100/).

devices/pdp11/dl11/README.md

@@ -0,0 +1,10 @@
+---
+layout: page
+title: DL11 Serial Interface for Display Terminals
+permalink: /devices/pdp11/dl11/
+---
+
+DL11 Serial Interface for Display Terminals
+-------------------------------------------
+
+PDPjs implements the DL11 component in [serialport.js](/modules/pdp11/lib/serialport.js). 

devices/pdp11/pc11/README.md

@@ -0,0 +1,10 @@
+---
+layout: page
+title: PC11 High-Speed Paper Tape Reader/Punch
+permalink: /devices/pdp11/pc11/
+---
+
+PC11 High-Speed Paper Tape Reader/Punch
+---------------------------------------
+
+PDPjs implements the PC11 component in [pc11.js](/modules/pdp11/lib/pc11.js).