diff --git a/education/software development/ECE1400/C.md b/education/software development/ECE1400/C.md
index 908f994..36a8b62 100644
--- a/education/software development/ECE1400/C.md	
+++ b/education/software development/ECE1400/C.md	
@@ -24,6 +24,8 @@ An integer is a way to store a whole number. In C, integers are signed by defaul
 Values of an integer type are whole numbers.
 
 Integers are divided into two categories, signed, and unsigned.
+
+If the sign bit is zero, it's a positive value, and if it's 1, the value is negative.
 ## Floats
 A float is a decimal value. Slower arithmetic and inexact values are both drawbacks of using floats.