got a link? I want to share this!
You just needed to know where to kick it.I hated IMB punch cards. The readers and punches were always jamming.
...And I think their math is wrong too.You just needed to know where to kick it.
Ben
...And I think their math is wrong too.
Each card had 80 columns with 9 bits of data in each column (an 8-bit byte with one checksum bit).
Each card had 80 bytes of data on it, see below:
5mb would only be 62,500 cards. There's a lot more than that in the pic.
That would be a great way to keep the table memorized.
I would sooo do that!
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