Date   : Sat, 03 Jun 2006 15:27:15 +0100
From   : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: Cheese Wedge Dating

The IEEE488 adapter was later re-issued in metal, non-cheese wedge
casing.  It's the same PCB but much later by the looks of the date coding
on the board, about 1988/1989.

Best wishes,



Ian

----- Original Message -----
From: Jules Richardson
To:  bbc-micro@...
Sent:  Fri, 02 Jun 2006 18:33:36 +0100
Subject: Re: [BBC-Micro] Cheese Wedge Dating

Ian Wolstenholme wrote:
> It says that the IEEE488 interface has been released 

d'oh! I knew there was one I was forgetting! :)

I wonder why the IEEE488 was first? Presumably Acorn had some high-profile 
clients that needed it - possibly people still using System hardware who Acorn 
wanted to move over to the beeb.

Andy Ray of Intelligent Interfaces (who made the boards) is lurking on the 
c.s.a.h newsgroup and will probably remember a release date - all he says in 
his last post about the boxes was that it was the early '80s .


> 6502 and Z80 second processors are virtually ready for release.  It
> doesn't mention the Teletext Adapter although the April 1984 edition
> has a report on the Teletext Adapter, so it looks like the IEEE488
> wedge won, closely followed by the Teletext Adapter.

Wonder about Prestel though? I can't remember if the board in that is an Acorn 
design or an off-the-shelf modem board (as other manufacturers of the time 
often used). If the latter then I imagine the Prestel adapter was a really 
easy product to bring to market, so could well have beaten the others...

cheers

Jules