The correct answer is R.A.M.R.A.M is not an example of a secondary storage device.Primary Memory: It is the working memory of the main memory of a computer system.It is temporary in nature. Hence, it is also called volatile memory.An example of primary memory is RAM.Primary memory is directly accessible by the CPU.The RAM is a read/write memory.The CPU can change the contents of the RAM at any time. Additional InformationHard disks, Magnetic tapes, and C.D. are all types of secondary storage devices.