Memory elements are employed specifically in computer memories and generally in sequential circuits. A memory element is any smallest part of such a system that possesses more than one stable state. For example, a binary shift register contains four flip-flops and has 16 states, but each of its four memory elements has only two states; a similar ternary shift register would have 81 states, but would still consist of four memory elements, each having three states.
"memory element." A Dictionary of Computing. . Encyclopedia.com. (August 18, 2018). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/memory-element
"memory element." A Dictionary of Computing. . Retrieved August 18, 2018 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/memory-element