ROM is a non-volatile memory chip that Read Only Memory. Data stored in a ROM can only be read and used – they cannot be changed. ROMs are mainly used to store programs and data, which do not change and are frequently used. For example, system boot program
Different types of ROM in the Computer System, these are
Manufacturer Programmed ROM, PROM, EPROM, EEPROM (Flsh Memory), UVEPROM
Manufactured ROM :
PROM : Programable ROM
EPROM : Erasable PROM
EEPROM (Flsh Memory): Electrically EPROM
UVEPROM : Ultra Violet EPROM
RAM define as a Random Access Memory that Primary storage of a computer is often referred to as RAM because of its random access capability. RAM chips are volatile memory.
A computer’s motherboard is designed in a manner that the memory capacity can be enhanced by adding more memory chips. The additional RAM chips, which plug into special sockets on the motherboard, are known as single-in-line memory modules (SIMMs).