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.
PHYSICAL MEMORY Study Guide. Memory management at the hardware level is concerned with the electronic devices that actually. store data. There are basically two types of physical memory: ROM and RAM. Different. variations of physical memory are used for System RAM, Cache RAM, System ROM. Memory, BIOS ROM / Flash BIOS ROM, CMOS, Keyboard Controller, Bus System RAM, and Expansion Card RAM, etc.