In 1962, IBM built a secret NSA computer that ran jobs up to 200 times faster than any other machine; 14 years later a worn-out part ended its run because its maker was no longer in business

IBM built a secret computer for the US National Security Agency that began operating in 1962 and remained in service for 14 years, processing some of the agency's most sensitive cryptographic workloads during the Cold War. Known as Harvest, the machine could run certain jobs up to 200 times faster than other computers of its time, according to accounts of its capabilities.