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.
Computer Memory. The system memory is the place where the computer holds current programs and data that are in use. There are various levels of computer memory, including ROM, RAM, cache, page and graphics, each with specific objectives for system operation.f ROM is damaged, the computer system simply cannot function. RAM, or Random Access Memory, is âvolatile.â This means that it only holds data while power is present. RAM changes constantly as the system operates, providing the storage for all data required by the operating system and software.