THE ERA OF COMPUTERS STARTED IN 1964 WHEN THE FIRST EVER COMPUTER WAS INVENTED WHICH IS AS LARGE AS TWICE OF AN TENNIS COURT WHICH WAS CALLED AS SUPER COMPUTERS OR MAINFRAME COMPUTERS. THEN CAME UP LITTLE TECHNOLOGIZED MICROCOMPUTERS WHICH IS MORE TALLER THAN 6 FEET WHICH IS COMPARATIVELY SMALLER THAN SUPERCOMPUTERS.LATER ON IN THE CYCLE CAME UP THE MINI COMPUTERS WHICH IS APPARENTLY 12 FEET LONG.THEN IN EARLY 1980’S STEVE WOZNIAK INVENTED SOMETHING CALLED AS PERSONAL COMPUTERS (PC). WITHOUT MUCH DIFFERENCE A NEW GADGET SHOWED UP THAT WAS LAPTOP IN 1982. WHICH IS AS SMALL 14-16 INCHES. THEN, THE SO CALLED BILL GATES CO-FOUNDER OF MICROSOFT INVENTED TABLET IN 2000. THAT IS END OF THE BASIC REVOLUTION OF COMPUTERS. THEN LATER ON MANY SMARTPHONES AND EVEN ROBOTS WERE ALSO INVENTED. BY OBSERVING TO WHOLE CYCLE OF COMPUTERS WE CAN SAY THAT A GADGET WHICH WAS 2 TIMES A TENNIS COURT WAS MODIFIED INTO SMALL TINY DEVICE IN OUR HAND. THAT IS THE POWER OF THE COMPUTERS AND TECHNOLOGY. BY THIS RESULT WE CANT EVEN IMAGINE HOW THE COMPUTERS WIlL BE IN FUTURE. MAYBE WE JUST NEED TO ON IT AND REST IS DONE AUTOMATICALLY.