diff --git a/src/main/kotlin/org/neoflock/neocomputers/block/RelayBlock.kt b/src/main/kotlin/org/neoflock/neocomputers/block/RelayBlock.kt
index c512472..7920547 100644
--- a/src/main/kotlin/org/neoflock/neocomputers/block/RelayBlock.kt
+++ b/src/main/kotlin/org/neoflock/neocomputers/block/RelayBlock.kt
@@ -27,6 +27,7 @@ import org.neoflock.neocomputers.gui.menu.RelayMenu
 import org.neoflock.neocomputers.item.RelayUpgrade
 import org.neoflock.neocomputers.network.ConventionalNetworkDevice
 import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
 import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.network.NodeSynchronizer
 import org.neoflock.neocomputers.utils.GenericContainer
@@ -91,6 +92,8 @@ class RelayEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceBlock
             super.processCommit(buf)
             activityTickLeft = buf.readVarInt()
         }
+
+        override fun getComponent() = NNComponent("relay")
     }
 
     fun sendQueuedPacket() {
diff --git a/src/main/kotlin/org/neoflock/neocomputers/entity/CaseBlockEntity.kt b/src/main/kotlin/org/neoflock/neocomputers/entity/CaseBlockEntity.kt
index 3349080..610d939 100644
--- a/src/main/kotlin/org/neoflock/neocomputers/entity/CaseBlockEntity.kt
+++ b/src/main/kotlin/org/neoflock/neocomputers/entity/CaseBlockEntity.kt
@@ -25,6 +25,7 @@ import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
 import org.neoflock.neocomputers.gui.menu.CaseMenu
 import org.neoflock.neocomputers.item.ComponentItem
 import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
 import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.network.PowerRole
 import org.neoflock.neocomputers.sounds.ComputerRunningSoundInstance
@@ -113,6 +114,8 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceB
                 NeoComputers.LOGGER.info("machine $address got $message from ${message.sender.address}")
             }
         }
+
+        override fun getComponent() = NNComponent("computer")
     }
 
     val redstoneIn = Array(Direction.entries.size) {0}
@@ -260,7 +263,7 @@ class CaseBlockEntity(blockPos: BlockPos, blockState: BlockState): SingleDeviceB
 
     override fun getMachineMemoryTotal(): Long = stacks.mapNotNull { (it.item as? ComponentItem)?.getMemoryCapacity(it) }.sum().toLong()
     override fun getMachineMemoryUsed(): Long = 0
-    override fun getMachineComponentsUsed(): Long = deviceNode.getReachable().size.toLong()
+    override fun getMachineComponentsUsed(): Long = deviceNode.getReachable().count { it.getComponent() != null }.toLong()
     override fun getMachineComponentsTotal(): Long = stacks.mapNotNull { (it.item as? ComponentItem)?.getComponentCapacity(it) }.sum().toLong()
     override fun getMachineArchitecture() = arch
     override fun getMachineArchitectures() = stacks.mapNotNull { (it.item as? ComponentItem)?.getArchitecturesProvided(it) }.flatten().toSet()
diff --git a/src/main/kotlin/org/neoflock/neocomputers/entity/ScreenEntity.kt b/src/main/kotlin/org/neoflock/neocomputers/entity/ScreenEntity.kt
index e02eb07..c061cbf 100644
--- a/src/main/kotlin/org/neoflock/neocomputers/entity/ScreenEntity.kt
+++ b/src/main/kotlin/org/neoflock/neocomputers/entity/ScreenEntity.kt
@@ -11,6 +11,7 @@ import org.neoflock.neocomputers.NeoComputers
 import org.neoflock.neocomputers.block.SingleDeviceBlockEntity
 import org.neoflock.neocomputers.gui.buffer.BufferRenderer
 import org.neoflock.neocomputers.network.DeviceNode
+import org.neoflock.neocomputers.network.NNComponent
 import org.neoflock.neocomputers.network.Networking
 import org.neoflock.neocomputers.utils.GPUChar
 import org.neoflock.neocomputers.utils.TextBuffer
@@ -64,6 +65,8 @@ class ScreenEntity(blockPos: BlockPos, blockState: BlockState) :
             lastError = buf.readUtf().ifEmpty { null }
             textBuf.decodeContents(buf)
         }
+
+        override fun getComponent() = NNComponent("screen")
     }
     var bound = "screen/unbound"
 
diff --git a/src/main/kotlin/org/neoflock/neocomputers/network/DeviceNode.kt b/src/main/kotlin/org/neoflock/neocomputers/network/DeviceNode.kt
index eb732f7..a6a90f6 100644
--- a/src/main/kotlin/org/neoflock/neocomputers/network/DeviceNode.kt
+++ b/src/main/kotlin/org/neoflock/neocomputers/network/DeviceNode.kt
@@ -11,6 +11,9 @@ import org.neoflock.neocomputers.network.Networking.maxHopCount
 import java.util.UUID
 import kotlin.math.min
 
+// tmp class until JNI bindings work
+data class NNComponent(val type: String)
+
 open class DeviceNode(_address: UUID? = null) {
     val connections = HashSet<DeviceNode>()
     private var reachableCache: Set<DeviceNode>? = null
@@ -235,6 +238,8 @@ open class DeviceNode(_address: UUID? = null) {
 
     // client-side, meant to bring state forward
     open fun processCommit(buf: FriendlyByteBuf) {}
+
+    open fun getComponent(): NNComponent? = null
 }
 
 // Used by the relay