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PHYSICAL MEMORY TYPES:
SRAM - Static random access memory
Older type of ram. Uses transistors to store information
DRAM - Dynamic random access memory
Uses capacitors to store memory.Requires refresh.
ROM - Read only memory
Data in ROM can not be erased or changed
PROM - Programmable ROM
After the data is programmed into ROM, it can't be erased or changed.
EPROM - Erasable PROM
Data can be erased by shining special ultraviolet light through a small window on the chip. The chip can then be reprogrammed.
EEPROM - Electronically erasable PROM
Data can be erased by sending a special electric charge. Chip
can then be reprogrammed. Modern computers use EEPROM to store BIOS.
VRAM - video ram
Special type of ram used on video cards.
WRAM - Windows RAM
Specialized memory for Windows accelerator cards, faster than normal VRAM, can be read from or written to simultaneously. (Dual-Ported memory)
CACHE MEMORY:
memory used to cache CPU instructions. L1 cache located on CPU. L2 cache is external cache, located on motherboard.
Regards,
Ram...
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