There are two fundamental types of computer memory RAM and ROM. Define what these letter represent and explain the functional differences between these two type of memory.
RAM is Random Access Memory
This type of memory is volatile, which means the data stored are erased when power is turned off. The data can be erased now and often. Two types of Ram are normally used, STATIC and DYNAMIC RAM. This memory is also known as primary memory.
ROM is Read Only Memory
This memory is read only type, means, data cannot be re-written. Once something is written it is not erased. The data is retained even if after power is turned OFF. The ROM types are PROM (Programmable Read Only Memory) and EPROM ( Electrically Erasable Programmable Read Only Memory). Some startup program are normally written on these type of Memory.
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What exactly is RAM and its function ?
RAM stands for “Random Access Memory.” This is the actual physical memory of a computer where the operating system and programs are loaded and kept so they can be accessed more quickly by the processor. RAM is also one kind of storage in a computer but on the temporary side.
Unlike other kinds of storage devices like the hard disk drive or HDD and the solid-state drive or SSD, the data stored in RAM is kept until there is power or the computer is running. When the computer is turned off and there is no more power, all the data it stores are also gone. ROM stands for “Read-Only Memory.”
It is the kind of memory that is limited only to reading of data. It doesn’t allow writing of data to the memory. One example of ROM is the ROM drive that’s included in an external hard drive that contains the driver or the software for the drive.
Unlike RAM where data is lost when power is gone, with ROM data is kept and remains on the drive or memory even when there is no power.
