Interesting to observe that Schnorr's protocol for proving knowledge of discrete log (which for the TLDR people is kind of the "primitive" behind the Schnorr signature) is really actually a tweak on a...
IBM launched this beautiful piece of hardware around the same
The IBM 4381 Processor is one of the most powerful and versatile intermediate system processors ever produced by IBM. Its system capabilities enable the 4381 to address an expanded range of user requirements in addition to providing growth for users of smaller, intermediate system processors.
https://www.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP4381.html
The IBM 4381 Processor is one of the most powerful and versatile intermediate system processors ever produced by IBM. Its system capabilities enable the 4381 to address an expanded range of user requirements in addition to providing growth for users of smaller, intermediate system processors.
https://www.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP4381.html