Path: utzoo!utgpu!bnr-vpa!bnr-di!leibniz!hwt From: hwt@leibniz.UUCP (Henry Troup) Newsgroups: comp.arch Subject: Re: Risky instructions (WAS: Re: RCA 1802 (was: PC history)) Summary: Printers halt and catch fire Keywords: history, pc, RCA, 1802 Message-ID: <119@leibniz.UUCP> Date: 11 Aug 88 02:30:27 GMT References: <5458@ecsvax.uncecs.edu> <1876@looking.UUCP> <753@applix.UUCP> <5440@june.cs.washington.edu> Organization: Bell-Northern Research, Ottawa, CANADA Lines: 7 Someone mentioned the HCF (Halt and Catch Fire) opcode - the IBM 3800 printer is a continuous form laser printer. Halt and catch fire is a reasonably regular occurence, or was - whenever there's a problem, paper stops in the hot fuser... The toner was also carcinogenic but they changed that...