List of some funny computer Glitch you might not know

In this Post I will share some simple minor computer glitch which could be interesting to know. An error usually frustrate us but these error might make you lough. 

Microsoft Calculator Glitch:  Do you know there is a simple error occurs when you square root a number and try to deduct with the answer you get? Lets's try it. 1) Open Microsoft Calculator. 2) choose a number , suppose 16. 3) Square root the number and you get 4. 4) Now deduct 4 from the 4. ex (4-4) 5) You will be surprised to see a result like the picture below: 

Interesting isn't it? Not interesting! Ok lets try the next Glitch. 

Create a folder with the name "Con" : can you create a new folder or rename a folder with the name "Con", Try to rename a folder with the word CON. You will be surprised to see that you will FAIL to create a folder with the name CON. However you can create a folder with the name CON using DOS.