Image of Henry Sheffer

Henry Sheffer

was born 142 years ago

1 September 1882

Henry Sheffer was a mathematical logician who introduced what is now called the NAND operator which lies at the basis of the entire computer industry. He showed that all logical operators can be derived from a single one, NAND.

Find out more at: https://mathshistory.st-andrews.ac.uk/Biographies/Sheffer/