User talk:Keshav gujar

Computer is the verstile machine. Initially it is very-very large about 30 tone in weight and length about 30 feet ang 7 feet hight spcae. Initialy it is searched by China people as like a ball slate, in marathi called manyachi pati. Befor advanced technology there is no electric supply so use of vacuuam tubes. Vacuuam tubes are heated due to using and get break. Capacity of computer is very low.