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NCR Computers of the 20th Century => I'm Looking for ... => Topic started by: courtois on May 20, 2010, 09:26:01 am



Title: Base 40 conversion
Post by: courtois on May 20, 2010, 09:26:01 am
Hello.

I was working on NCR Century 8200 in France in the 70's.

At this time, the names of the files in the directory disc under Imos II or III was coded on four bytes in Base 40 I think.
I don't remember the method to convert it in Alphanumeric characters.

If someone could help me, It will be awsome.

Regards

Jacques Courtois


Title: Re: Base 40 conversion
Post by: ron on August 11, 2011, 08:08:09 am
Post a hex dump of the directory entries.

Base 32 i have heard of but not base 40

Ron


Title: Re: Base 40 conversion
Post by: wally on August 11, 2011, 09:13:53 am
Yes, it was base 40, which was used!!
Wally.

Here you'll find a tool and info for conversion.
http://www.easysurf.cc/cnver17.htm (http://www.easysurf.cc/cnver17.htm)