memory (electronics)

What are the three important characteristics of semiconductor memory?

Density, non-volatility, read/write capability

What does SRAM stand for?

Static Random-Access Memory

What does ROM stand for?

Read-Only Memory

What does DRAM stand for?

Dynamic Random-Access Memory

What does EEPROM stand for?

Electrically Erasable PROM

What does PROM stand for?

Programmable ROM

What is the characteristic of ROM?

Data is stored permanently and cannot be reprogrammed

What is the characteristic of SRAM?

Volatile memory that holds data as long as power is supplied

What is the characteristic of DRAM?

Volatile memory that needs refreshing many times per second

What is Flash memory?

A modern memory that is nonvolatile, can be electrically updated, and has high density

What is the difference between volatile and nonvolatile memory?

Volatile memory loses data when power is off, while nonvolatile memory retains data

What is NVSRAM?

Non-Volatile Static RAM that has better access speed and overall life than SRAM with battery backup

What is the purpose of a digital potentiometer?

To control resistance outputs variable in discrete steps and store the wiper position in EEPROM

What type of memory is a CD-R?

Recordable optical disc

What type of memory is a CD-RW?

Rewritable optical disc

What type of memory is a 3.5 inch floppy disk?

Secondary storage device

What is the role of EEPROM in a digital potentiometer?

To store the wiper position on power down and recall it on power up

What is the main characteristic of FRAM?

Nonvolatile RAM with good access speed and low density

What is the main characteristic of MRAM?

Nonvolatile RAM with excellent access speed and high density

What is the function of a memory card?

To serve as a secondary storage device like Flash memory card