The term ROM is an acronym for “read only memory” which means “ read only memory”. ROM memory is a device where digital information can be stored used in computers and electronic devices capable of having one. In this kind of storage device, only the reading of information is allowed, not its writing. It is the common user who cannot write in this memory because one of the data that is stored there is the software belonging to each particular hardware, this application is known as firmware, which are mostly executed when the computer starts up and others. In it, important data is stored so that the computer can have an efficient operation, therefore who is able to modify the content of this memory is the manufacturer since it is not an easy task to carry out.
The information inserted in the ROM memory is not destroyed or modified, it remains stored there, even if there is an electrical current interruption, for this reason it is said that it does not matter if there is an energy source that feeds it, this information will always remain stored there Due to this it is also called non-volatile memory.
In addition to being responsible for having inside the content of the programs that make each hardware or peripheral work both input and output, in the event that there is no connection of any of them of main importance, it will show an error message, in memory ROM also the task of starting the operating system that the computer work is done.
