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An overview of computer memory and buses, including the functions of system and expansion buses, volatile and nonvolatile memory types, and external bus standards such as isa, pci, agp, usb, and ieee 1394. It also covers various memory modules and technologies like simm, dimm, rimm, sram, dram, rom, prom, eeprom, cmos memory, and flash memory.
Typology: Slides
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Stores open programs and data
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Small chips on the motherboard
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More memory makes a computer faster
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2 Basic types of RAM chips
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Dynamic RAM (DRAM)
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Also called main memory o
Most common type
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Variation:
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Synchronous DRAM
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Double data rate SDRAM
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DDRAM or SDRAM II
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Direct Rambus DRAM
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Direct RDRAM
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Static RAM (SRAM)
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Used for special applications such as cache o
Faster and more reliable than DRAM o
Does not need to be refreshed periodically
