Re: Control Data 160

2015-09-12 Thread Mark Linimon
excellent post. mcl

C-64 / Epyx FastLoad bug(s)? Workaround?

2015-09-12 Thread drlegendre .
Anyone here using (or have used) a C-64 with the venerable Epyx FastLoad cartridge? I'm running into a VERY annoying bug, and would like to know what if anything is known about it. Bug works like this.. Use the FL "$" command to display the disk directory. Immediately after, try to save a program

Re: Control Data 160

2015-09-12 Thread Billy Pettit
"wmachacek" wrote: Subject: Control Data 160 I have a CDC "160 Computer Programming Manual" that I obtained many years ago when I was working with CDC equipment. This manual caught my eye and I squirreled it away since we were using the 160-A computers not the 160s. This manual has a publicatio

WTB: Teletype parts

2015-09-12 Thread drlegendre .
Need the following items for an ex-Bell System Model 15 TTY: Keycaps - F K L C V B N with punctuation symbols, rather than fractions. I have a set with fractions to sell or swap. Keycaps - CARR RET and NULL (blank). These are missing. Platen crank - This is missing. Think that's all for now.

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics SR settings?)

2015-09-12 Thread Rick Murphy
At 12:31 PM 9/12/2015, Charles wrote: Update: The first thing I tried was removing and reseating the boot ROMs (465A2/469A2), since they did not use good machine-tooled sockets. Now the boot loader performs normally, no incorrect locations, and OS/8 boots from Drive 0 whether using the boot key

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics SR settings?)

2015-09-12 Thread Charles
As previously posted, reseating the boot ROMs in their sockets cured the corrupted boot loader issue. Got lucky there :) In my system there are two RL02 drives. I will call them "Top" and "Bottom" here, after their physical locations. I put the OS/8 pack that had been acting strangely in the bo

Re: information about the Bendix G-15 and Rice Research Computer?

2015-09-12 Thread Mark Linimon
On Sat, Sep 12, 2015 at 12:22:50PM -0500, Jon Elson wrote: > Any pictures of this? I'll forward this email to my contact at Rice. mcl

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics

2015-09-12 Thread jwsmobile
On 9/12/2015 10:08 AM, Charles wrote: So, either something is corrupting the bus, or the memory is bad. Correct me if I'm wrong, but if I got this right, you wrote the boot code by hand into memory, single-stepped it, and after a while, you had bad contents in memory. Now, execution here woul

Re: information about the Bendix G-15 and Rice Research Computer?

2015-09-12 Thread Jon Elson
On 09/12/2015 12:58 AM, Randy Dawson wrote: Yep, that was the place - I can't remember their name, I think they were the Autocad rep, and carried a few complementary lines like plotters. The R1 was laying down on some stands, like a coffee table, plexi cover so you could set your drinks on it a

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics

2015-09-12 Thread Charles
So, either something is corrupting the bus, or the memory is bad. Correct me if I'm wrong, but if I got this right, you wrote the boot code by hand into memory, single-stepped it, and after a while, you had bad contents in memory. Now, execution here would only be reading from memory, and not wr

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics SR settings?)

2015-09-12 Thread Johnny Billquist
On 2015-09-12 17:23, Charles wrote: Since the computer doesn't mind doing boring, repetitive tasks, I set the 11/23+ to yet again remaking the bootable RL02 pack (3 hrs at 9600 baud while I did other things). Plunked it in (without the programmer's panel connected), hit the boot switch on the lim

Re: Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics SR settings?)

2015-09-12 Thread Charles
Update: The first thing I tried was removing and reseating the boot ROMs (465A2/469A2), since they did not use good machine-tooled sockets. Now the boot loader performs normally, no incorrect locations, and OS/8 boots from Drive 0 whether using the boot key or manual start at 0001. Great! So o

Even more PDP-8/A weirdness (was: Re: PDP-8 diagnostics SR settings?)

2015-09-12 Thread Charles
Since the computer doesn't mind doing boring, repetitive tasks, I set the 11/23+ to yet again remaking the bootable RL02 pack (3 hrs at 9600 baud while I did other things). Plunked it in (without the programmer's panel connected), hit the boot switch on the limited function panel, and it fired r

Re: information about the Bendix G-15 and Rice Research Computer?

2015-09-12 Thread Mark Linimon
On Fri, Sep 11, 2015 at 10:58:38PM -0700, Randy Dawson wrote: > One of the Texas Microsystems founders (and a Rice alum) got possession Both were Rice alums :-) Working for them on the other side of the building was my summer job in college. They were ... characters. Probably Mike donated it.

Re: punchcard svg file available

2015-09-12 Thread simon
Hi, Hmm. russian carsds. sounds interesting. I'm certainly interested in their looks. could you post a scan of one of them? On 12-09-15 10:36, GerardCJAT wrote: Shall I understand that some of you guys, are looking for blank punch/punched cards ?? I have about a hundred ( here in Franc

Re: bendix GE-15?

2015-09-12 Thread Mark Linimon
On Fri, Sep 11, 2015 at 12:59:01PM -0700, W2HX wrote: > Some items that might be of interest > http://www.ebay.com/itm/Rare-Vintage-Bendix-G-15-Mainframe-Computer-Circuit-Board-Tester-/262042248871?hash=item3d02ef66a7 Yes, it would be, but not at that price. Ouch :-) mcl

Re: 21MX proms (per request

2015-09-12 Thread Eric Smith
On Fri, Sep 11, 2015 at 12:41 PM, GerardCJAT wrote: > HOW OFTEN theses old PROM fail ?? Note that some bipolar PROMs suffer from fuse regrowth, where bits that have been programmed gradually revert to an unprogrammed state. This was a big problem with NiCr fuses. Later bipolar PROMs used differe

punchcard svg file available

2015-09-12 Thread GerardCJAT
Shall I understand that some of you guys, are looking for blank punch/punched cards ?? I have about a hundred ( here in France !! ) Let me know if this can help. These came from ex Soviet Union, and, as far as I can tell, they "fell and taste" like original IBM cards that was used to "pl

RE: internet blocking problem ?

2015-09-12 Thread Dave G4UGM
Can I beg to differ, having had a quick play with Azure I quite like "cloud" solutions. However they usually don't deliver what managers expect as usually it is only the hardware that’s in the cloud. You don't get the Systems Admin done for you. You will often have to back it up. Worse still it