Core rope memory is a type of read-only memory (ROM) for computer systems. It was used in the UNIVAC I (Universal Automated Pc I) and the UNIVAC II, developed by the Eckert-Mauchly Pc Corporation within the 1950s, because it was a popular expertise for program and information storage in that period. The software for the AGC was written by programmers on the Massachusetts Institute of Technology (MIT) Instrumentation Lab, and was woven into core rope memory by feminine employees in factories. Some programmers nicknamed the completed product LOL memory, for Little Old Lady memory. Similar to magnetic-core memory, magnetic rings (or cores) are used to find out the info of the software program. Not like magnetic-core memory, the cores themselves will not be used to store the info