Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rochester!ur-tut!ur-cvsvax!tim From: tim@ur-cvsvax.UUCP (Tim Takahashi) Newsgroups: comp.sys.mac,comp.sys.misc,comp.sys.m68k Subject: Mac II NuBus Specifications Message-ID: <646@ur-cvsvax.UUCP> Date: Fri, 17-Jul-87 10:51:29 EDT Article-I.D.: ur-cvsva.646 Posted: Fri Jul 17 10:51:29 1987 Date-Received: Sun, 19-Jul-87 21:06:19 EDT Organization: Center for Visual Science, Univ. of Rochester Lines: 23 Keywords: Mac II, NuBus Xref: mnetor comp.sys.mac:4818 comp.sys.misc:696 comp.sys.m68k:525 We are looking into replacing our instrumentation computer (an ailing DEC PDP 11/23-Plus) with either an MSDOS or a Mac II (no flames) system. We specifically require high speed A/D, D/A and TTL I/O. National Instruments Co. makes boards that will do A/D, D/A etc. that conforms to the NuBus standard. I have the following questions? 1. What is the NuBus standard (IEEE-?) 2. Can an add on card generate max. priority interrups (every 20 msec) to the 68020 on the Mac II motherboard? 3. Is it possible to write interrupt service routines (for a user program) that coexist with the windowing scheme, et.al. on the Mac II. Do you need an assembler or can you write it under a high level language? 4. Are there any good C compilers for the Mac II that are fairly bug free? Thanks for any information, Tim Takahashi Center for Visual Science University of Rochester Rochester, NY 14627 rochester!ur_cvsvax!tim