Lecture on Semiconductor Main Memory

These flashcards cover key terms and concepts related to semiconductor main memory from the lecture notes.

What is semiconductor memory?

A type of computerized electronic memory that uses semiconductor material, usually silicon, to store data digitally.

What are the two main types of semiconductor memory?

Random Access Memory (RAM) and Read-Only Memory (ROM).

How does RAM differ from ROM?

RAM is temporary and volatile memory, used for active tasks, while ROM is permanent and non-volatile, storing critical firmware.

What is DRAM?

Dynamic Random-Access Memory, a type of RAM that uses capacitors to store data and needs periodic refreshing.

What is SRAM?

Static Random-Access Memory, a type of RAM that uses flip-flop circuits to store data and does not need refreshing.

What does non-volatile mean?

Memory that retains its data even when the power is turned off.

What is PROM?

Programmable Read-Only Memory, a type of ROM that can be written to once and is non-volatile.

What are the advantages of Read Mostly Memory?

High read speed, data persistence, upgradability, reliability, and cost efficiency.

What is the disadvantage of Read Mostly Memory?

Slow write operations and limited write cycles, which may degrade over time.

What is EEPROM?

Electrically Erasable Programmable Read-Only Memory, which can be written to at any time without erasing prior contents.

What is Flash Memory?

A type of memory that uses electrical erasing technology and is used in USB drives and SSDs.

What types of applications use Read Mostly Memory?

Firmware storage, configuration data storage, and embedded systems.

What is the main function of a semiconductor memory cell?

To represent and store binary data as stable states of electrical charge.

What is the significance of the memory cell's ability to be written into?

It allows the state of the memory cell to be set, representing binary 1 or 0.