Is computers takes lots of time to do any mathematical calculations.​

a computer take lost of time to do any mathematical calculations because problem in the book or questions

answer; insolated i/o uses separate memory space,and on the other hand memory mapped i/o uses memory from the main

try this:

go tos official website.

click on your profile pic at the top right of the screen and click 'edit profile'.

click on "preferences" and press "year of birth".

and then just maybe try to reset whatever error made before by typing in the correct age details again. hope this !