Re: radar history

^^ thats because they create lure around things to install fear in the enemy remember propiganda On Sat, Mar 3, 2018 at 12:46 AM, Chuck Guzis via cctalk < cctalk@classiccmp.org> wrote: > I dunno about these historical accounts. > > I was watching a PBS program about RADAR and the magnetron was

Re: radar history

I dunno about these historical accounts. I was watching a PBS program about RADAR and the magnetron was made out to be a super-secret device, yet there's a clear explanation of it in my 1942 "Radio Handbook". --Chuck

Re: radar history

dunno what that thing is.. Mentioned link as many of us,are,interested in a,cross section on electronivs history.. pike Cory, and others .. Sent from AOL Mobile Mail On Friday, March 2, 2018 Ian Finder wrote: All I have to say in response to this message is...

Re: radar history

All I have to say in response to this message is... http://i0.kym-cdn.com/entries/icons/original/000/022/978/yNlQWRM.jpg

radar history

https://www.bing.com/videos/search?q=castles+in+the+sky+radar=EMMX03=%2biT2nJ5t%2bsBZvoaW.1.0.1.285=%2fsearch%3fq%3dcastles%2bin%2bthe%2bsky%2bradar%26FORM%3dEMMXAB%26PC%3dEMMX03%26refcv%3d%252BiT2nJ5t%252BsBZvoaW.1.0.1.285=detail=vwrc=16FF70654860E5B15B4E16FF70654860E5B15B4E=WRVORC great

Polymorphic 8813 Bezel

While cleaning just now I found one of the metal and black plastic side bezels for an 8813. If anyone needs one, let me know and I can send it to you! -- Ben Sinclair b...@bensinclair.com

IBM System/36 manuals available

Folks, I know someone in North Carolina (not on this list) who just found a small pile of IBM System/36 manuals in three ring binders. These are all already on Bitsavers, and these manuals are in pretty rough shape, but if anyone really really wants them, let me know and I'll pass on your

RE: Old Classiccmp archive

Livin' in a small town... Nobody locks their door at night... -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jon Elson via cctalk Sent: Friday, March 02, 2018 11:35 AM To: r.stricklin; gene...@ezwind.net; discuss...@ezwind.net:On-Topic and Off-Topic

Re: PDP11 I/O page memory map

> On Mar 2, 2018, at 9:11 AM, Paul Koning via cctalk > wrote: > > >> On Mar 2, 2018, at 8:37 AM, Noel Chiappa via cctalk >> wrote: >> >>> From: Jerry Weiss >> >>> Typically execution of the RESET instruction in a user program is >>> treated as

Re: Bug-for-bug compatibility [was RE: SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]]

On 03/02/2018 06:44 AM, Maciej W. Rozycki via cctalk wrote: > On Wed, 28 Feb 2018, Paul Koning via cctalk wrote: > >> With the VAX, this got cleaned up to a significant extent, and ditto >> with Alpha. In both cases, an internal validator tool was created to >> verify that, at least from the

Re: PDP11 I/O page memory map

It might be interesting to make a virtual PDP-11 (simulator) that *IS* more virtualization friendly, and find out how much user code depends on the existing behavior... And then write a PDP-11 hypervisor! BUT existing PDP-11's aren't even friendly restarting after a page fault, which is required

Re: PDP11 I/O page memory map

> On Mar 2, 2018, at 5:37 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss >> Typically execution of the RESET instruction in a user program is >> treated as a NOP > > Yeah, that's not documented in most PDP-11 CPU manuals, either. It's one of > the things

Re: PDP11 I/O page memory map

> From: Paul Koning > RTI/RTT are used in the debugger, so they need to work in user mode. > They refuse to raise your privilege level, though. I understand that it has uses, but by specifying the 'failure' mode in User mode (when the contents of the current or previous modes is not

Re: Old Classiccmp archive

On 03/01/2018 10:34 PM, r.stricklin via cctalk wrote: 8) Once the @ character is echoed, press enter. You should get an error message (I no longer remember the text). Now type "@O 77". This instructs the TIP to connect you to the MIT-DM (Massachusetts Institute of Technology,

Re: HP 1000 system in Europe

Some more info would be nice. Also, a word of caution. I have two HP 1000/A900 systems and I gave myself a hernia last weekend, moving them. Robert On Thu, Mar 1, 2018 at 7:49 AM, GerardCJAT via cctech wrote: > NICE system !! > > I would have love it but hadn't room

Re: PDP11 I/O page memory map

> On Mar 2, 2018, at 8:37 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss > >> Typically execution of the RESET instruction in a user program is >> treated as a NOP > > Yeah, that's not documented in most PDP-11 CPU manuals, either. It's one of > the

Re: Is livingcomputers.org down?

It's back up. On Fri, Mar 2, 2018 at 8:34 AM, Kyle Owen via cctalk wrote: > I'm not able to load Living Computer's website. Anyone else? > > Kyle >

Re: PDP11 I/O page memory map

> From: Jerry Weiss > Typically execution of the RESET instruction in a user program is > treated as a NOP Yeah, that's not documented in most PDP-11 CPU manuals, either. It's one of the things that makes the PDP-11 impossible to virtualize; only HALT and SPL trap, IIRC. M[TF]P[ID]

Is livingcomputers.org down?

I'm not able to load Living Computer's website. Anyone else? Kyle

Re: Shipping a Flexowriter

+2 for Pak Mail. I used their Plainview TX franchise, last year, to send an AS/400e, with expansion chassis, all the way from Texas to Canada. They came and collected it (a 250 mile round trip), built a crate for it and sent it LTL freight. The recipient was happy. On Thu, Mar 1, 2018 at 2:38

Re: Bug-for-bug compatibility [was RE: SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]]

On Wed, 28 Feb 2018, Paul Koning via cctalk wrote: > With the VAX, this got cleaned up to a significant extent, and ditto > with Alpha. In both cases, an internal validator tool was created to > verify that, at least from the point of view of instruction execution, a > new machine worked the