diff --git a/docs/images/tickit-device-component.svg b/docs/images/tickit-device-component.svg
new file mode 100644
index 000000000..9ce581874
--- /dev/null
+++ b/docs/images/tickit-device-component.svg
@@ -0,0 +1,17 @@
+
\ No newline at end of file
diff --git a/docs/images/tickit-device-simulation-cpt.svg b/docs/images/tickit-device-simulation-cpt.svg
deleted file mode 100644
index 84a1c7f21..000000000
--- a/docs/images/tickit-device-simulation-cpt.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-
\ No newline at end of file
diff --git a/docs/images/tickit-system-component.svg b/docs/images/tickit-system-component.svg
new file mode 100644
index 000000000..edf6cc82d
--- /dev/null
+++ b/docs/images/tickit-system-component.svg
@@ -0,0 +1,17 @@
+
\ No newline at end of file
diff --git a/docs/images/tickit-system-simulation-cpt.svg b/docs/images/tickit-system-simulation-cpt.svg
deleted file mode 100644
index 38e2d5e0c..000000000
--- a/docs/images/tickit-system-simulation-cpt.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-
\ No newline at end of file
diff --git a/docs/user/explanations/components.rst b/docs/user/explanations/components.rst
index 547f0edb4..85331d9fb 100644
--- a/docs/user/explanations/components.rst
+++ b/docs/user/explanations/components.rst
@@ -2,37 +2,37 @@ Simulation Components
=====================
There are two types of components that can be used in a tickit simulation,
-device simulations and system simulations.
+device components and system components.
-Device Simulation
+Device Component
-----------------
-Device simulations are the typical use case of a component. They encapsulate a
+Device components are the typical use case of a component. They encapsulate a
device and any adapters for that device.
-.. figure:: ../../images/tickit-device-simulation-cpt.svg
+.. figure:: ../../images/tickit-device-component.svg
:align: center
(See `DeviceComponent`.)
-System Simulation
+System Component
-----------------
-System simulation components are themselves entire tickit simulations. They
-contain their own device simulation components and a scheduler for orchestrating
+System components are themselves entire tickit simulations. They
+contain their own device components and a scheduler for orchestrating
them. However, the scheduler in a system component acts as a nested scheduler
-which is driven by the master scheduler in the top level of the simulation
+which is triggered by the master scheduler in the top level of the simulation
it belongs to.
-.. figure:: ../../images/tickit-system-simulation-cpt.svg
+.. figure:: ../../images/tickit-system-component.svg
:align: center
-System simulations can also contain their own system simulation components
+System components can also contain their own system components
allowing for the construction of reasonably complex systems.
-System simulations can be nested inside other components in the config so that
+System components can be nested inside other components in the config so that
the master scheduler's wiring is correct, for example:
.. code-block:: yaml