John W. Colby
jwcolby at colbyconsulting.com
Thu May 19 08:44:55 CDT 2005
http://www.bobbemer.com/BYTE.HTM Discusses 9 bit character IBM machines where the 9th bit is used for a check bit apparently. John W. Colby www.ColbyConsulting.com Contribute your unused CPU cycles to a good cause: http://folding.stanford.edu/ -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Stuart McLachlan Sent: Thursday, May 19, 2005 9:19 AM To: Access Developers discussion and problem solving Subject: RE: Integers vs. Long Integers Was: RE: [AccessD] Global Variable On 19 May 2005 at 7:23, John W. Colby wrote: > No, it was groups of 3 bit octal numbers. > > ??? http://www.perl6.org/perl6-language/2004-09/msg00108.html "The Honeywell 6000 (which is still around as a machine from Bull with a 6 in its name, I believe) was a word addressed machine. (Words were 36 bits long and could hold 4 9-bit characters packed into each one.)" http://www.freepatentsonline.com/4240144.html "Prior art systems, for example, the Honeywell 6000 family of computers stored operand 3 in the bank of registers with combination logic setting up the pointers to identify the number and positions of leading and trailing zones as well as the character size, 4 bits or 9 bits, within each word and the position of the sign, trailing or leading." http://minnie.tuhs.org/pipermail/tuhs/2004-October/001066.html "On page 182 of K&R 1st edition there's a reference to an implementation of C on the Honeywell 6000, with 9 bit bytes." -- Stuart -- AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com