[nfbcs] K-Maps

[Rasmussen, Lloyd]

In 1969 I also was exposed to Karnaugh maps in a digital logic course. I never knew how to spell Karnaugh until I looked K-maps up on Wikipedia just now. I don't remember the details anymore, but I know that I also created a braille notation for my own use. This is facilitated if you have a braillewriter available to you. For a really compact form I think I had a system that involved combinations of dots within each cell, since you can represent up to 6 bits this way. I have forgotten all of this, but for the size of problems we were dealing with, a braille notation worked pretty well. 

Lloyd Rasmussen, Senior Staff Engineer
National Library Service for the Blind and Physically Handicapped, Library of Congress
Washington, DC 20542   202-707-0535
http://www.loc.gov/nls/
The preceding opinions are my own and do not necessarily reflect those of the Library of Congress, NLS.


-----Original Message-----
From: nfbcs [mailto:nfbcs-bounces at nfbnet.org] On Behalf Of Edgar Lozano via nfbcs
Sent: Thursday, September 29, 2016 11:32 AM
To: nfbcs at nfbnet.org
Cc: Edgar Lozano
Subject: [nfbcs] K-Maps

Hello Everyone,

This is my first time posting to this list. I'm a totally blind
student enrolled in a computer science university course essentially
titled Digital Logic. Much of we are covering is related to circuits
and electronic components. I understand everything. However, my
instructor is informing me that we'll need to make extensive use of
K-maps, a visual technique designed to aid in the simplifying of
Boolean algebra equations. Has anybody on this list taken a course
like this? I must admit, this is the first time in my university years
that I have a feeling that this will slow me down. I'm thinking about
purchasing a Draftsman board from APH. Maybe this will assist me in
getting the big picture of how a k-map is laid out. I know these
drawings are essentially matrices with bits arranged in column-row
fashion in boxes. Anyway, if someone has gone through a similar course
like this, I would appreciate any tips you have to facilitate the
understanding of k-maps and how I may be able to produce them.

Thank you.

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