関連ワード:  why ram is called a volatile memory    why is ram called a volatile memory short answer    why ram is called volatile memory justify with reason    why ram is called volatile memory in computer    why ram is called volatile memory class 8    why ram is called volatile memory class 9    why ram is called volatile memory class 6    why ram is called non volatile memory    why is ram called volatile memory class 4    explain why ram is called volatile memory