Memory heirarchy/caches

Question 1

What is are the practical differences between SRAM and DRAM

Answer 1

DRAM slower access (capacitors)
DRAM is more dense
DRAM cheaper
Requires a refresh
manufacturing harder

Question 2

what is the typical capacity of cache

Answer 2

32Kb
4096 64 Bit instructions

Question 3

What are the key features of SRAM

Answer 3

volatile
made of flip flops
just logical components
fastest type of memoyr
low capacity
and small in physical size
used in caches

Question 4

what are the key features of DRAM

Answer 4

constructed with logic and capacitors (charge used to represent bits)
used in main memory
volatile
needs to refresh regularly

larger than SRAM in capacity and physically
slower than SRAM

Question 5

what is HBM

Answer 5

high bandiwidth memory
used on things like GPUs

Question 6

what are the key features of HBM

Answer 6

High bandwidth
used to provide high bandwidth main memoyr
higher latency than DRAM
volatile

Question 7

what are the key features of flash memory

Answer 7

non volatile
high capacity
fast compared to other non volatile memory

Question 8

what are the key features of hard disk

Answer 8

high capacity
non volatile
large

Question 9

key features of tape

Answer 9

very high capacity
non volatile
very slow