What is alexa rank and how to increase it?

  If you are from the blogging field you must have known that what is Alexa rank and how does it work? if you are not from the blogging ...

What is mouse and how many types of it?

  I think maybe most people are definitely using a computer but do you know that what is mouse and how many types of it?.  if you are using ...

What is computer and features of it?

  A computer is a machine that performs tasks according to certain instructions. This is an electronic machine which is made with a view to ...