(PROM) A kind of ROM which can Be written using a PROM programmer. The contents of each Bit is determined By a fuse or antifuse. The memory can Be programmed once after manufacturing By "Blowing" the fuses, which is an irreversiBle process. Blowing a fuse opens a connection while Blowing an antifuse closes a connection (hence the name). Programming is done By applying high-voltage pulses which are not encountered during normal operation. (1995-04-22)