5. System Memory Flashcards
What type of memory module is Dual Inline Memory Module (DIMM) and how many pins does its connector have?
Single Bank | 240 or 184 pins
What is the most common type of memory and what bus speed does it support?
Dual Data Rate | PC133 or 133 MHz
How is throughput calculated?
Using the bus speed and width of the data bus
What is the oldest type of memory and requires frequent refreshing?
Dynamic (DRAM)
How many pins does a Synchronous DRAM (SDRAM) connector have, and what are its possible bus speeds?
168 pins | PC66/66MHz, PC133/133MHz, PC266/266MHz
How many pins does a Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM) connector have?
184 pins
How many pins does a DDR2 SDRAM connector have, and what is its bus speed?
240 pins | PC2-4200, 4200 MB/s, 4.2 GB/s
What is the bus speed of a DDR3 SDRAM connector?
PC3-10600, 10600 MB/s, 10.6 GB/s
How many large are the data buses respectively have for Single-, Dual-, Triple, and Quad-channel Memory?
64-bit, 128-bit, 192-bit, and 256-bit
What is standard memory trhat does not check for errors and allows data to be input and removed?
Non-Parity Memory
What memory type performs basic error checking to ensure the memory contents are reliable?
Parity Memory
What does ECC stand for and what does is it used for?
Error Correcting Code | Detecting and correcting errors
What serves as additional register hardware between memory and the CPU, and requires buffering or registering the data to reduce the electrical load?
Buffered / Registered Memory
What memory modules have internal error checking and can be sold as ECC or non-ECC?
DDR5
What is space on a hard drive that is allocated by the OS and pretends to be
memory? What does it do?
Virtual Memory / Page File | Checks available memory and free memory
