1" paper tape buy ?

[Mike Loewen]

On Thu, 26 Feb 2009, John Floren wrote:

> I thought 80-column cards were 80 bytes? One byte per column? I've
> never actually used them, so if somebody could explain to me that
> would be interesting.

    There are 80 columns with 12 rows each.  I assumed the worst case of 
using two ASCII characters to represent each byte.  You could punch them 
in binary and get 1 byte in each column with a nibble left over in each 
column.  Or, you could pack 3 nibbles in each column and get 120 bytes, 
but it would play hell with your punches.  :-)


Mike Loewen				mloewen at cpumagic.scol.pa.us
Old Technology	http://sturgeon.css.psu.edu/~mloewen/Oldtech/