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.
The data storage capacity of an electronic device or component, measured in RAM or ROM: RAM (random access memory) is that memory immediately available to the CPU, ranging to 1 gigabyte, which is âlabileâ and therefore lost when the device is turned off; ROM (read-only memory) is that memory which is âhard-wiredâ in specifically designed circuitry, comprising a form of permanent software.