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.
Read Only memory. Accessibility. In reference with the processor, the information stored in the RAM is easily accessed. The processor cannot directly access the information that is stored in the ROM.ajor difference is that electricity is needed to use RAM but this is not true in ROM. There are many difference between RAM and ROM. RAM is used to store only temporary data but ROM is used to store permanent data.