Assertion: bipolar memory | /r/CapableOf | use bipolar transistors
Facets:
Source sentences:
text: Semiconductor memory began in the early 1960s with bipolar memory, which used bipolar transistors.
text: The earliest semiconductor memory dates back to the early 1960s, with bipolar memory, which used bipolar transistors.
text: Semiconductor memory began in the 1960s with bipolar memory, which used bipolar transistors.