[GreenKeys] pdp 4 w/tty console ascii ? bcd? baudot?

[John Nagle]

> Date: Mon, 21 Jul 2014 02:04:44 +0000
> From: "Jones, Douglas W" <douglas-w-jones at uiowa.edu>
> To: "greenkeys at mailman.qth.net" <greenkeys at mailman.qth.net>
> Subject: Re: [GreenKeys] pdp 4 w/tty console ascii ? bcd? baudot? what
> 	say you Q
> From: Ed Sharpe Archivist for SMECC via GreenKeys [greenkeys at mailman.qth.net]
> Sent: Sunday, July 20, 2014 7:54 PM
> Subject: [GreenKeys] pdp 4 w/tty console ascii ? bcd? baudot? what say you Q
>
> The keyboard of the TTY in the photo is plainly a 3-row keyboard.
> This rules out ASCII, and makes me strongly suspect Baudot,
> although some eccentric 6-bit character set such as a variant BCD
> is entirely possible.
>
>                Doug Jones
>                jones at cs.uiowa.edu

   It's a standard Model 28KSR Baudot machine. Here's the
PDP-4 manual. Runs at the usual 10 chars/sec. See page 38.

http://research.microsoft.com/en-us/um/people/gbell/digital/PDP%204%20Manual%201962.pdf

				John Nagle