diff --git a/modules/pdp11/lib/ram.js b/modules/pdp11/lib/ram.js
index 530f8c537..39931e94a 100644
--- a/modules/pdp11/lib/ram.js
+++ b/modules/pdp11/lib/ram.js
@@ -57,6 +57,11 @@ if (NODE) {
  * NOTE: We make a note of the specified size, but no memory is initially allocated for the RAM until the
  * Computer component calls powerUp().
  *
+ * TODO: I seem to recall a PDP-11 diagnostic that failed if total RAM wasn't a multiple of 16Kb; our Bus
+ * component defaults to a block size that matches BusPDP11.IOPAGE_LENGTH (ie, 8Kb), and we even allow partial
+ * block allocations, so internally, we don't have that requirement, but for better compatibility, perhaps we
+ * should display a non-fatal warning if addr or size don't fall on 16Kb boundaries.
+ *
  * @constructor
  * @extends Component
  * @param {Object} parmsRAM