Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!mcvax!ukc!its63b!epistemi!martin From: martin@epistemi.UUCP (Martin Shepherd) Newsgroups: comp.sys.ibm.pc Subject: millisecond timing Message-ID: <1@epistemi.UUCP> Date: Thu, 9-Jul-87 05:04:13 EDT Article-I.D.: epistemi.1 Posted: Thu Jul 9 05:04:13 1987 Date-Received: Mon, 13-Jul-87 00:50:08 EDT Organization: Epistemics, Edinburgh U., Scotland Lines: 18 Does anyone out there know anything about using an XT-compatible PC (probably Elonex PC 88 Turbo) for applications involving millisecond timing? I ask because I would like to be able to use a machine like this for psychological experiments which involve presenting simple stimuli (single words, symbols, etc.) on the monitor and timing subjects' keypress responses to the nearest one or two milliseconds. The keys could be on the keyboard, but being able to hook up a couple of morse keys would be useful. I need to be able to "blank" and "unblank" the monitor screen so that the onset of a display is more or less instantaneous. This might seem like a strange thing to be doing with a PC but my resources are very limited and I want to be able to do word processing and reaction time experiments on the same machine. Any comments/ideas? Martin Shepherd.