Which paper tape hole is bit 1?

Barry Watzman Watzman at neo.rr.com
Sat Nov 19 08:50:58 CST 2005


I have a chart of paper tape hole patterns for all 128 characters, and it
shows the LSB (bit zero, although the chart numbers them 1-8) as the edge
hole on the 3-hole side, with the bits in order 0 to 7 (or 1 to 8).

However, one question, this chart shows the high-order bit (parity bit)
punched for every character, no exceptions.  Was that a standard convention
in sending ascii files to paper tape?





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