Peripheral Device s are accessories that are connected to the computer, and allow it to increase its capabilities. This is memory in which the information is stored permanently. ROM contains instructions for the computer on how to operate. The computer can read these instructions, but It cannot change or erase them. For example, ROM contains instructions on what language to use.
RAM holds the program being run and the information that the program is using.
This is temporary memory which will be lost if the computer is turned off or reset. The computer can both read information from it and store information in it. Also known as read-write memory, the amount of RAM determines how much memory is available to store programs and data. Select Click just once on a graphic or icon to select it in order to perform a function with that icon or to get information about the icon. Software applies to the programs run by or associated with the operation of a computer.