 A hypercomputer is any information-processing machine (notional or real) that is able to achieve more than Turing’s human rote-worker can in principle achieve (see the entry on  computation in physical systems).  The term ‘hypercomputer’ was introduced in Copeland and Proudfoot 1999a. Hypercomputers compute (in a broad sense of ‘compute’) functions or numbers—or, more generally, solve problems or carry out information-processing tasks—that lie beyond the reach of the universal Turing machine (see Copeland 2002b, 2004a; Copeland and Proudfoot 2012; Syropoulos 2008). ETMs and ATMs are examples of—notional—hypercomputers.