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.