Common operational misconceptions

Owen DeLong owen at delong.com
Fri Feb 17 19:52:01 CST 2012


On Feb 17, 2012, at 11:04 AM, Valdis.Kletnieks at vt.edu wrote:

> On Fri, 17 Feb 2012 10:49:13 PST, Owen DeLong said:
>> Now, come on... If you're in the 40-50 range, you should have put octal
>> before hex. :p
> 
> IBM S/360 definitely preferred hex.  And EBCDIC.
> 

Strictly an artifact of it's EBCDIC nature, as a matter of fact...

The BCD in EBCDIC stands for Binary Coded Decimal which inherently
requires Hex.

In fact, if you compare punched cards to EBCDIC, you'll find some remarkable
similarities...

For example C1 (12 1) is A (Hollerith A is a 12 punch plus a 1 punch).

Owen




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