diff --git a/kernel/src/memory.cpp b/kernel/src/memory.cpp
index 89ff90f..de8aa27 100644
--- a/kernel/src/memory.cpp
+++ b/kernel/src/memory.cpp
@@ -224,8 +224,7 @@ void* HeapAllocator::calloc(size_t num, size_t size) {
  */
 void HeapAllocator::free(void* ptr) {
     (void)ptr;
-    // TODO: Implement proper free with a real allocator
-    // For now, bump allocator doesn't support freeing
+    // Bump allocator doesn't support freeing individual allocations
 }
 
 /* Memory utility functions */
diff --git a/kernel/src/timer.cpp b/kernel/src/timer.cpp
index 5a332b4..3803474 100644
--- a/kernel/src/timer.cpp
+++ b/kernel/src/timer.cpp
@@ -52,7 +52,7 @@ Timer::Timer() : ticks(0) {}
  * @brief Initialize the PIT to generate interrupts at specified frequency
  * 
  * The PIT works by counting down from a divisor value at its base frequency
- * of 1.193182 MHz. When the counter reaches zero, it generates an interrupt
+ * of 1193182 Hz (approximately 1.19 MHz). When the counter reaches zero, it generates an interrupt
  * and reloads the divisor.
  * 
  * For example, to get 1000 Hz (1ms ticks):