Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-02 Thread dwight via cctalk
ve and negative logic going through the circuit if it has any complexity, for if a coil is or isn't driven. Dwight From: Paul Koning Sent: Thursday, October 1, 2020 2:03 PM To: dwight ; General Discussion: On-Topic Posts Cc: osi.superboard Subject: Re: Zu

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-02 Thread Lawrence Wilkinson via cctalk
On 2/10/20 10:20 am, Brent Hilpert via cctech wrote: > I'm not sure how unique this is to Zuse however. > The raw design presented in the Radio-Electronics/Edmund Berkeley Simon > articles of 1949/50 presents this scheme, > although more complex (unoptimised) in the contact logic. > This is post-Z

RE: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-02 Thread Dave Wade G4UGM via cctalk
> -Original Message- > From: cctalk On Behalf Of K. Krause via > cctalk > Sent: 02 October 2020 08:54 > To: General Discussion: On-Topic Posts > Subject: Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the > archives > > > > On 01.1

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-02 Thread K. Krause via cctalk
On 01.10.20 23:38, Eric Smith via cctalk wrote:It is going to need a lot of contact cleaning. The one thing I like is the carry design the Zuse used. Really fast for relays but not of much use for solid state. Where is that circuit described? The circuit is described in Konrad Zuses life m

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-02 Thread Brent Hilpert via cctalk
On 2020-Oct-01, at 2:03 PM, Paul Koning via cctalk wrote: >> On Oct 1, 2020, at 1:20 PM, dwight via cctech wrote: >> >> It is going to need a lot of contact cleaning. >> The one thing I like is the carry design the Zuse used. Really fast for >> relays but not of much use for solid state. >> Dwig

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-01 Thread Eric Smith via cctalk
On Thu, Oct 1, 2020 at 11:54 AM dwight via cctech wrote: > It is going to need a lot of contact cleaning. > The one thing I like is the carry design the Zuse used. Really fast for > relays but not of much use for solid state. > Where is that circuit described?

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-01 Thread Paul Koning via cctalk
> On Oct 1, 2020, at 1:20 PM, dwight via cctech wrote: > > It is going to need a lot of contact cleaning. > The one thing I like is the carry design the Zuse used. Really fast for > relays but not of much use for solid state. > Dwight Where did you find that? I looked through the document t

Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the archives

2020-10-01 Thread dwight via cctalk
It is going to need a lot of contact cleaning. The one thing I like is the carry design the Zuse used. Really fast for relays but not of much use for solid state. Dwight From: cctech on behalf of osi.superboard via cctech Sent: Thursday, October 1, 2020 6:07 AM