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Computer Memories - Coggle Diagram
Computer Memories
Primary Memory
RAM
Random Access Memory
DRAM = Dynamic RAM
SRAM = Static RAM
ROM
Read Only Memory
if it is turned off , all the memory is lost
it is of 3 types = PROM,EPROM and EEPROM
PROM = programable ROM
EPROM = erasable programable ROM
EEPROM = elotronically erasable PROM
Secondary Memory
fixed devices
hard disk
(CD,DVD)
Removable Devices
pen drive
blue ray disk