[ih] "network unix"

[Randy Bush]

>> 1401 (8-bit bcd with zone punches and a word mark) 
> 
> It's been (a long) while, but I think the 1401 had 6-bit characters
> plus a parity (odd) bit and a word mark to signify the end of a data
> field or instruction.

parity
A
B
8
4
2
1
word mark