The oral mucosa in the area of crenation is usually of normal color, but there may be erythema (redness) if exposed to a high degree of friction or pressure. Crenated tongue is usually asymptomatic and harmless.
ROM stands for read-only memory. It's used to store the start-up instructions for a computer, also known as the firmware. Most modern computers use flash-based ROM. It is part of the BIOS chip, which is located on the motherboard.
RAM vs ROM. RAM and ROM are both different types of memories used in any computer to make it fast and to enable it to access information stored in the computer. Every computer comes with a certain amount of physical memory which is actually chips that hold data.This memory is referred to as Random Access Memory or RAM.here are glaring differences between the RAM and the ROM. Difference Between RAM and ROM. â¢ RAM is Random Access Memory, while ROM stands for Read Only Memory. â¢ RAM is volatile and is erased when the computer is switched off. ROM is non-volatile and generally cannot be written to.