diff --git a/src/main/resources/assets/oc2/lang/en_us.json b/src/main/resources/assets/oc2/lang/en_us.json
index 36cbabc6..755e6806 100644
--- a/src/main/resources/assets/oc2/lang/en_us.json
+++ b/src/main/resources/assets/oc2/lang/en_us.json
@@ -15,6 +15,12 @@
   "item.oc2.flash_memory": "Flash Memory",
   "item.oc2.redstone_interface_card": "Redstone Interface Card",
   "item.oc2.network_interface_card": "Network Interface Card",
+  "item.oc2.control_unit": "Control Unit (CU)",
+  "item.oc2.arithmetic_logic_unit": "Arithmetic Logic Unit (ALU)",
+  "item.oc2.microchip": "Microchip",
+  "item.oc2.disk_platter": "Disk Platter",
+  "item.oc2.transistor": "Transistor",
+  "item.oc2.pcb": "Printed Circuit Board (PCB)",
 
   "config.oc2.maxAllocatedMemory": "Maximum allocated memory",
   "config.oc2.maxMemorySize:": "Maximum memory device size",