diff --git a/notes.html b/notes.html
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@@ -16,7 +16,7 @@
 
 ### Client-side 
 
-Client-side technologies run in your web browser (e.g Firefox, Google Chrome or Internet Explorer). The three main client-side technologies are:
+Client-side technologies run in your web browser (e.g Firefox, Google Chrome or Internet Explorer) and it can easily hackable. Client-side are so quick because it can check the input in brouser. The three main client-side technologies are:
 
 1. HTML
 2. CSS
@@ -24,7 +24,7 @@
 
 ### Server-side
 
-Server-side technologies run on the server. There are many more possibilities here.
+Server-side technologies run on the server and it can't be easily hackable. Server-side technologies are quite slow because first it send the input on server and then check the input.  There are many more possibilities here.
 
 Technology			Description
 Ruby on Rails		A web development framework built on the Ruby programming language.