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35 Cards in this Set
- Front
- Back
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What does it mean for a RAM chip to be 1 M x 8?
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The chip organizes information in 8 columns, with 1,048,576 rows in each column (1 Mb/column, 1 MB/chip)
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True or False: DRAM has been the most widely used type of RAM since the early '90s.
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False, it has been used since the mid-70s
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True or False: The Intel 8088 organized data in byte-sized chunks
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True
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If a DRAM chip is 64 K x 1, how does information get to the CPU in byte-sized chunks?
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The Memory Controller Chip arranges the data into rows of 8 before it goes to the CPU.
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What is the MCC?
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Memory Controller Chip, it arranges the memory going from the RAM to the CPU.
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True or False: All the commands recognized by CPUs are 8 bits long?
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Way false. Way.
Some commands are 8 bytes wide. |
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How do you know how much RAM you can put on your computer and what kind it needs?
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You consult your motherboard manual.
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What is a SIMM?
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Single Inline Memory Module, a package for earlier RAM sticks
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How wide are most MCCs today?
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64 bits, although there are some that send info to the CPU in chunks of 128.
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How do people usually describe the total capacity of a stick of RAM?
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In bytes
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FPM RAM
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Fast Page Mode RAM - it is a really old kind of RAM that was not tied to the system clock
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What does the S mean in SDRAM?
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Synchronous, tied to the system clock.
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SDRAM was first delivered when and in what package?
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1996, DIMM package
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What is a DIMM package?
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Dual Inline Memory Module
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How many pins on the DIMM SDRAM packages in the earlier desktops?
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168
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What are some packages in which early SDRAM sticks were made for laptops?
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DIMM - 68-pin, 144-pin;
micro-DIMM - 72,144 and 200-pin Small Outline DIMM form factors(SO DIMM) |
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SO DIMM
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Small Outline DIMM - package for earlier SDRAM sticks for laptops
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How wide is the data bus for CPUs emerging since the Pentium?
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64 bit
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What is a bank?
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A slot for RAM
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What is special about banks for 72 pin SO DIMM packages?
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It takes 2 slots to make a full bank (wide enough to fill the CPUs data bus.
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When and why did RDRAM come about?
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It was developed for the Pentium 4 because the SDRAM was just not fast enough
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What is RDRAM?
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Rambus Dynamic RAM - a fast kind of RAM developed by Rambus, Inc. for use with Pentium 4 processors
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True or False: the 400 MHz FSB speed of the Pentium 4 was achieved by making the system clock faster.
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False, it was achieved by making CPUs and MCCs that sent 64 bits of data 2-4 times on each clock cycle.
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What was the package for RDRAM and what does it stand for?
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RIMM, it actually stands for nothing, it just rhymes with other packages
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RDRAM RIMS for desktops had how many pins?
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184
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RDRAM RIMMs for laptops had how many pins?
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160 pin SO-RIMM package
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Why were RIMMs installed in pairs?
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To make use of a new MCC function of alternating between two banks for quicker RAM retrieval.
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What is a CRIMM?
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A Continuity RIMM, not having any storage capacity, but required to fill a slot on the motherboard to complete a circuit.
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True or False: RDRAMs could be used by any kind of CPU?
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False, only by Intel Pentium 4s with Intel-made MCCs.
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What was AMDs answer to RDRAM?
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DDR SDRAM, or Double Data Rate SDRAM
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DDR SDRAM
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Double Data Rate SDRAM, AMD made this faster RAM to compete with RDRAM. It completed two processes on each clock cycle.
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Which is faster, RD RAM or DDR RAM?
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RD RAM
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Which was more expensive, RD RAM or DDR SDRAM?
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RDRAM
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Package for DDR SDRAM on desktops?
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184-pin DIMMs
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Package for DDR SDRAM on laptops?
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200-pin SO-DIMM or 172-pin micro-DIMM
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