From mboxrd@z Thu Jan 1 00:00:00 1970 From: grog at lemis.com (Greg 'groggy' Lehey) Date: Tue, 16 Jun 2020 13:21:35 +1000 Subject: [COFF] Mercury delay lines In-Reply-To: References: Message-ID: <20200616032135.GD7773@eureka.lemis.com> On Monday, 15 June 2020 at 17:38:18 +0100, Tony Finch wrote: > Adam Sampson wrote: >> Dave Horsfall writes: >> >>> Apart from the beautiful Teletype in the foreground, there was a >>> machine with lots of dials in the background; obviously some early >>> computer, but not enough footage for me to tell which one, >> >> There are some shots in this trailer: >> https://www.youtube.com/watch?v=_JQmO2fC00E >> >> The racks are mockups (there's a nice National HRO radio in the middle >> of one!), but I think what they're trying to represent is the EDSAC >> computer at Cambridge; the noughts and crosses game pictured ran on >> EDSAC. > > A picture of Wilkes with some mercury delay lines and a corner of an EDSAC > rack. > > https://images.computerhistory.org/revonline/images/500004368-03-01.jpg?w=600 That looks very much like the delay lines on CSIRAC, the oldest Australian computer, currently on display at Scienceworks in Melbourne. I have a number of photos of the machine at http://www.lemis.com/grog/photos/Photos.php?dirdate=20040904 , and there's a delay line at http://www.lemis.com/grog/Photos/20040904/big/Delay-line-1.jpeg CSIRAC was built in 1949. If you're in Melbourne, it's well worth looking at. Greg -- Sent from my desktop computer. Finger grog at lemis.com for PGP public key. See complete headers for address and phone numbers. This message is digitally signed. If your Microsoft mail program reports problems, please read http://lemis.com/broken-MUA -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 163 bytes Desc: not available URL: