Section 5 - System Memory Flashcards
(56 cards)
What is Random Access Memory (RAM) used for
Used to load applications and files into a non-persistent and fast storage area
What is a mass storage device
Permanent storage area
Define
RAM / System Memory
Temporary storage area/ non persistant
What is disk cache’s function
Pulls the files from the disc into memory and replaces the old file
What does a mechanical system use
An electronic system that can access the RAM with instant speed
Explain Addressing Memory
Processor reaching the files inside RAM
32-bit (x86)
4(2^32) billion address locations (4gb of data)
64-bit (x64)
184 quintillion address locations (16 EB(Exabytes) of data)
What is the max ram a x86 aka 32-bit processor can address
4GB
What is the max ram a x64 aka 64-bit processor can address
> 4GB of RAM
Explain Single Bank (RAM)
Any size modules in any slot
Explain Paired Bank (RAM)
Requires installation of bank in pairs
RAM Versions (Abbreviation)
DDR3,4,5(Dual Data Rate)
What bus speed does PC133 run at
133 MHz
Explain throughput in regards to ram
Calculated based on the bus speed and the width of the data bus
Explain Dynamic RAM (DRAM)
Oldest type of memory that requires frequent refresh
Explain Static RAM (SRAM)
Solved the issue of the constant refresh, but it was expensive
DRAM Storage characteristic
It is dynamic
What speed does the PC166 Bus have
166 MHz
What speed doe the PC266 Bus use
266 MHz
Double data rate synchronous dynamic random-access memory (DDR SDRAM)
Doubles the transfer speed of an SRAM module (184-pin connector)
Double data rate 2 synchronous dynamic random-access memory (DDR2 SDRAM)
Higher latency and has faster access to the external bus (240-pin connector
Double data rate 3 synchronous dynamic random-access memory (DDR3 SDRAM)
2 Improvements
Runs at a lower voltage and at a higher speed than DDR2 (240 keyed pin connector)
What is DDR3’s throughput
6.4 to 12.8 GB/s with a max module size of 8GB/module n max
