OK, let's take anzterm as an example because I'm more familiar with it. There's lots of interesting stuff about it.
SNA implementation using Motorola ADLCs and software (IBM SNA was a very widespread point-to-point topology network stack before internet protocols and switched fabric won out)
Hardware DES engine, from a time when such things were controlled items (can't let crooks encrypt their e-mail)
A rare look inside banking tech from the days before commodity PCs took over when it was still mainframes and dedicated clients
A standalone MICR module that uses a modern MCU/gate array/signal conditioning/SMPS setup, i.e. the essence of every modern design but twenty years before it became commonplace
It annoys people who don't understand the value of preservation
Index 
Flat 
Re: I know I'm going to take shit for this but.....
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