10base2 / 10baseT (again)

From: Eric J. Korpela <korpela_at_ellie.ssl.berkeley.edu>
Date: Tue Nov 28 10:53:35 2000

> Well, I'd posit that Apple _set_ standards instead of following them.
>
> For example, Apple's use of a DB-25 for a SCSI port and the pinout
> they chose has been copied widely throughout the industry.

Try to plug in a device with the Future Domain pinout. I don't know
which came first, I just know that they are incompatible to the point
of releasing the majic smoke.

> More conventionally, the serial ports follow normal pinouts, even
> though they're electrically RS-422 instead of RS-232C.

The "normal pinouts" were defined by Apple. Other systems used different
pinouts on the same Mini-DIN connector (Epson PX-8, for example).

Eric
Received on Tue Nov 28 2000 - 10:53:35 GMT