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49 Cards in this Set
- Front
- Back
- 3rd side (hint)
Primary Memory or Temporary storage stored on the motherboard; falls into the volatile storage media; requires continuous flow of electricity to preserve its contents only when powered on |
RAM (Random Access Memory) |
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RAM is installed on the motherboard in: |
memory slots |
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The average motherboard will have between ______ & _______ memory slots |
2 & 4 |
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Most common; 168,184 & 240 pins Separate electrical contacts on each side of the module 64 bit data path 8 byte wide bus Printed circuit board (PCB) used as placeholder for memory chips Used w/ various SDRAM memory types |
DIMM (Dual Inline Memory Module) |
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Older technology Has redundant pins on both sides 32 or 72 pins 32 bit data path 4 Byte Wide Bus |
SIMM (Single Inline memory module) |
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184 pins; resembles DIMM Designed to work with a continuous signal All the memory slots on the motherboard must be used |
RIMM (Rambus Inline memory module) |
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The number of bits of data that are transferred in 1 cycle |
32 or 64 bit data path |
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the smallest form of data that the computer reads |
bit |
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8 bits equals: |
1 Byte |
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in order for a program to run it needs to be loaded into what first? |
RAM |
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RAM is stored in the motherboard in modules called: |
DIMM's |
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What does RAM require in order to store data? |
Constant electrical power |
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Contains capacitors; has to be refreshed oven |
DRAM | Dynamic RAM |
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Uses transistors, does not need to be refreshed, very expensive
Utilized for cpu cache memory chips |
SRAM | static RAM |
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Memory cache used by the CPU is an example of what RAM type? |
SRAM |
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True or False: SRAM is faster than DRAM |
True |
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Category of DRAM molecules that rely on the signal sent by the system clock in order to coordinate their functioning with other internal PC compliance |
Synchronous Dynamic RAM |
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operated asynchronously with the system clock; slower than the system clock; used as systems primary storage media |
DRAM |
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Sends double the amount data in each clock signal
Uses the total bandwidth in its label name
184 pins |
DDR | double data rate |
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Uses only the rising edge of the signal to transfer data |
SDR | single data rate |
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succeeded DDR technology, higher bus sleeves and less power than DDR
240 pins |
DDR2 |
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Registered RAM; made to add stability to RAM; adds an extra register btw RAM & memory controller. Storing date before it gets sent to the CPU. |
Buffered RAM |
Used in servers |
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RAM used installer devices such as laptops; half the size of regular DIMM's |
Small Outline Dual Inline Memory Module |
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Twice as fast as DDR2 Bandwidth of over 12800 MB/s 240 pins Not interchangeable |
DDR3 |
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Speed of 800 MHz Only a 2 Byte wide bus |
RDRAM (Rambus Dynamic RAM) |
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dummy RIMM; can be used instead of RIMMS |
C-RIMM |
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Requires a pair of identical DIMMS installed on the motherboard allowing the memory controller the ability to communicate with 2 DIMMs simultaneously Increases the speed of accessing the memory |
Dual channel mode |
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Allows the memory controller the ability to communicate with 3 DIMMs at the same time.
192 bits |
Triple channel mode |
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Single sided vs double sided RAM |
Refers to the groups of memory chips that a memory controller accesses. |
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When the memory controller sees these two groups of memory chips separately |
Double sided RAM |
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When RAM has one group of memory chips, the memory controller an access it as one group. Faster than double sided RAM |
single sided RAM |
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a group of bits processed as a unit in computer architecture |
Word |
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an equivalent of a period of time between two adjacent signals sent by the system clock |
A single clock cycle |
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The speed of the system bus in modern PCs is measured in: |
MHz |
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The speed of the system bus in modern PCs is measured in: |
MHz |
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Number of pins used by MicroDIMM DDR2 SDRAM modules: |
214 |
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Can detect and correct errors |
ECC type RAM |
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An extra bit used to store information about the number of bits set to the value of one in a given string of data; possible to detect where the data has been corrupted or not |
Parity bit |
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DVD-RAM |
allows for permanent storage of data |
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Can read/write one word of data per clock cycle
168 pins |
SDR SDRAM |
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184 contact pins Reads/writes 2 worlds of data per clock cycle 1 notch on the module contact surface |
DDR SDRAM |
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Reads/writes 4 words of data per clock cycle 1 notch in the module contact surface 240 contact pins |
DDR2 SDRAM |
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1 notch on the module contact surface 240 contact pins Reads/writes 8 words of data per clock speed |
DDR3 SDRAM |
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How man my pins are used by SO-DIMM DDR SDRAM memory modules? |
200 |
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DDR2 SO-DIMM memory modules have: |
144 & 200 pins |
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What is the number of pins used by SO-DIMM DDR3 SDRAM modules? |
204 |
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A memory module form factor commonly used in sub-notebook devices: |
MicroDIMM |
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How many pins are used by microDIMM DDR SDRAM memory modules? |
172 |
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Type of memory model for extending the capacity of primary storage in laptops |
SODIMM |
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