9-Track Tape Density Terminaology Query

From: Douglas H. Quebbeman <dquebbeman_at_acm.org>
Date: Mon May 6 08:13:50 2002

Should have asked this 20 years ago when everyone
remembered (well, those of you who'd been weaned by
that point, anyway...).

200, 556, 800, 1600bpi: bpi, bits per inch. I understand this one.

3200 cpi: is this characters-per-inch?

6250 fcpi: what, "framed" characters per inch?

One certainly can't figure this out merely by looking
at the capacities of the various modes...

Mostly just a curiosity, nothing really hinges on this...

-dq
Received on Mon May 06 2002 - 08:13:50 BST