What is Virtual Memory?
Virtual memory is a system where the computer uses hard drive space to extend RAM, allowing programs to run even when physical memory is full.
What is a Paging File?
The paging file is a space on the hard drive used to store data swapped out of RAM when memory is full.
What is the general rule for initial and maximum paging file size?
One and One Half Times; Three Times
What is the recommended size for a paging file under normal circumstances?
Equal to the amount of installed RAM
What are the four main form factors for RAM?
SIMM
DIMM
UniDIMM
SO-DIMM
What is SIMM RAM used for?
Older Computers
What is DIMM RAM used for?
Desktop computers, Modern standard for most large devices.
What is SO-DIMM RAM used for?
Laptops, Mini-PCs, and other Compact Devices
What is Uni-DIMM used for?
Laptops, some Compact Devices - Can hold either DDR3 or DDR4
How many Pins does DDR1 have?
184
How many Pins does DDR2 have?
240
How many Pins does DDR3 have?
240
How many Pins does DDR4 have?
288
How many Pins does DDR5 have?
288
How do you convert PC(x) into DDR(x)?
Divide the number after PC(x) by 8
What is ECC memory?
Memory that can automatically detect errors and correct them; rarely used in consumer devices.
How can you tell if memory is ECC?
ECC memory usually has one or more extra memory chips.
What is Buffered Memory?
Increases stability; Allows for more memory without overload.
What is CAS latency?
The delay between memory asking for data and the RAM delivering it.
