List Out the Features of Computer Memory?
Features of each type of memory
|
Type
|
Volatile?
|
Write able?
|
Erase Size
|
Max Erase Cycles
|
Cost (per Byte)
|
Speed
|
|
SRAM
|
Yes
|
Yes
|
Byte
|
Unlimited
|
Expensive
|
Fast
|
|
DRAM
|
Yes
|
Yes
|
Byte
|
Unlimited
|
Moderate
|
Moderate
|
|
Masked ROM
|
No
|
No
|
n/a
|
n/a
|
Inexpensive
|
Fast
|
|
PROM
|
No
|
Once, with a device programmer
|
n/a
|
n/a
|
Moderate
|
Fast
|
|
EPROM
|
No
|
Yes, with a device programmer
|
Entire Chip
|
Limited (consult datasheet)
|
Moderate
|
Fast
|
|
EEPROM
|
No
|
Yes
|
Byte
|
Limited (consult datasheet)
|
Expensive
|
Fast to read, slow to erase/write
|
|
Flash
|
No
|
Yes
|
Sector
|
Limited (consult datasheet)
|
Moderate
|
Fast to read, slow to erase/write
|
|
NVRAM
|
No
|
Yes
|
Byte
|
Unlimited
|
Expensive (SRAM + battery)
|
Fast
|