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.
NEXT PAGENEXT. The basic input-output system BIOS is the first thing you see when you turn on your computer. See more computer hardware pictures. One of the most common uses of Flash memory is for the basic input/output system of your computer, commonly known as the BIOS (pronounced bye-ose). On virtually every computer available, the BIOS makes sure all the other chips, hard drives, ports and CPU function together.