Post-it notes: the multi-purpose sticky paper
History: It’s quite remarkable to think that a small piece of paper with a simple adhesive has emerged as one of the mos
Keyboard
Introduction A keyboard is an input device that is used with a computer to perform functions and enter characters such as lett
Blu-ray
Picture this: it is 2010, the movie “Avatar” has been released, you are excited to watch it, so you go to the nearest movi