what about that intel 3000 bit slice thing is it almost a microprocessor yes no and why? Ed#
In a message dated 11/21/2023 3:34:03 PM US Mountain Standard Time, c.murray.mccullough(a)gmail.com writes:
There are 5 other possibilities for the honour:e or noe and why?
No. 2:
Texas Instruments applied for a “computing systems CPU” in 1971 and awarded a patent in 1973. The question though is: did TI have a functioning processor based on the TMS1000. Not sure if they did!
No. 3:
“In 1969 Four-Phase Systems built the 24-bit AL1, which used multiple chips segmented into 8-bit hunks, not unlike a bit-slice processor. In a patent dispute a quarter century later proof was presented that one could implement a complete 8-bit microprocessor using just one of these chips. The battle was settled out of court, which did not settle the issue of the first micro.”
No. 4:
Is this the first microprocessor?
Here is a source:
https://historydraft.com/story/microprocessor/pico-electronics-and-general-…
No. 5:
"In 1969 Four-Phase Systems built the 24-bit AL1, which used multiple chips segmented into 8-bit hunks, not unlike a bit-slice processor. In a patent dispute a quarter century later proof was presented that one could implement a complete 8-bit microprocessor using just one of these chips. The battle was settled out of court, which did not settle the issue of the first micro."
It seems the answer depends on what is a microprocessor...I suppose when it comes down to capitalism patents count more than anything else!
Happy computing,
Murray 🙂
On Tue, Nov 21, 2023 at 5:00 PM ED SHARPE via cctalk <cctalk(a)classiccmp.org> wrote:
I had heard something about a f14 chip pehS being first but not avail. To general public???Ed#
Sent from AOL on Android
On Tue, Nov 21, 2023 at 2:41 PM, Joshua Rice via cctalk<cctalk(a)classiccmp.org> wrote:
On 21/11/2023 09:03, ED SHARPE via cctalk wrote:
> So what are the other contenders and what do they bring to table
The 4004 was definitely the first commercially available single-chip CPU
on the market, but if you include multi-chip LSI designs, the lines get
blurry.
I just pushed two additions to https://github.com/pkoning2/decstuff :
In "patches" a new patch for the DEUNA driver. This fixes a problem seen when doing user (as opposed to DECnet) I/O, as well as two errors that show up when using units beyond the first.
Directory "ntp" is new. This is a simple NTP protocol client for RSTS, which will synchronize the system clock with an NTP server on the LAN. It includes handling of timezone rules, so the right thing will happen at daylight savings time (summer time) boundaries. The clock is maintained to the full RSTS resolution -- typically 1/50th or 1/60th second, but can be as low as 10 ms if the KW-11/P clock is used.
paul
I'm working on some code where it would be handy to map the top of the I/O page along with the bottom of physical memory. An obvious hack is to point the APR to the I/O page address needed, then set the length so that the address modulo 2^22 also covers the low memory range.
It seems from the architecture manual that this would work, and SIMH seems to do this (since it adds VA and PAR then masks with a 22 bit mask). Would this work on real hardware?
paul
Folks,
Trying to reduce the weight in my loft and I would like to donate my HP
Photoplotter to a good home.
. Photos of the plotter and some sample plots are on my OneDrive here:-
https://1drv.ms/f/s!Ag4BJfE5B3ongspXY7zySSZsDj-WMg
It has both serial and IEEE interfaces and uses HPGL like the GP and Roland
pen plotters.
The plots on there are the samples built into the plotter taken on a Fuji
XE-1 digital camera and are cropped because the Fuji does not have a full
frame sensor.
The tube is actually a white tube and the colours are generated by rotating
colour filters.
Its powered by a 68000 and you can see the various boards in the pictures.
Dave
> -----Original Message-----
> From: Guy Dunphy <guykd(a)optusnet.com.au>
> Sent: Thursday, November 16, 2023 9:54 PM
> To: General Discussion: On-Topic and Off-Topic Posts
<cctalk(a)classiccmp.org>
> Subject: Re: [cctalk] Free to good home HP 7510a Photo Plotter - UK
>
> Hi Dave,
>
> I'm very interested, and happy to pay for packing and airfreight to
Australia.
Also had one other query. I will now keep things private...
> Also something for the unit. Do you happen to have originals of the
manuals, or
> just the digital ones you've posted?
I don't think I have any paper manuals.
>
> Do you have a 'pack and ship' company nearby, who could do a safe packing
> using foam-in-place, or soft foam block padding, then send by airfreight
to
> Sydney Australia?
>
I should have said the plotter came to me from France packed in expanded
foam. I think I may still have the packing.. I will check and report back...
> I'm fully aware of the costs, having recently had a HP 7586B pedestal
plotter
> sent from San Francisco in a big wooden crate (vial PCL sea freight) and a
20'
> shipping container full of thousands of service manuals arriving by sea
form the
> USA in a few days.
OK I have shipped an IBM 3174 screen controller to Europe, and a E-Prom
programmer to the USA so I may also be reasonably experienced...
>
> If you'll pass the photo plotter on to me, please reply via private email.
Ok let me talk privately...
>
> Kind regards,
> Guy
>
Dave
> At 10:24 AM 16/11/2023 -0000, you wrote:
> >Folks,
> >
> >
> >
> >Trying to reduce the weight in my loft and I would like to donate my HP
> >Photoplotter to a good home.
> >
> >. Photos of the plotter and some sample plots are on my OneDrive here:-
> >
> >
> >
> >https://1drv.ms/f/s!Ag4BJfE5B3ongspXY7zySSZsDj-WMg
> >
> >
> >
> >It has both serial and IEEE interfaces and uses HPGL like the GP and
> >Roland pen plotters.
> >
> >The plots on there are the samples built into the plotter taken on a
> >Fuji
> >XE-1 digital camera and are cropped because the Fuji does not have a
> >full frame sensor.
> >
> >The tube is actually a white tube and the colours are generated by
> >rotating colour filters.
> >
> >Its powered by a 68000 and you can see the various boards in the
pictures.
> >
> >
> >
> >Dave
> >
> >
> >
> >
> >
> >
Greetings all.. I'm looking for a Qualstar 1260S 1/2" tape system to
review/recover data from a stack of early Landsat tapes that I came into
a while back. I'd prefer the Qualstar SCSI system for familiarity but
basically I'm looking for a SCSI unit that can read 6250 GCR tapes. I'd
prefer west coast area to avoid shipping but given their (lack of)
availability I'm open to talking with anyone who might be willing deal
with it.
Steve
Hi everyone,
I've been restoring a couple of Tektronix 4404 here in the UK. (68010, 2M RAM / 8MB virtual, 1024x1024 display, C & Smalltalk-80, runs on Uniflex)
Having got past the physical restoration and using David Gesswein MFM board in place of the Micropolis HD, I've been diving into writing software.
Its been a fun - if sometimes frustrating - project. There are no docs beyond some vanilla CRT + (incorrect) graphics calls.
In particular nothing on the network stack..
(Figured out executable file format) and wrote a Uniflex to ELF file format converter so I can load stuff into Ghidra to analyze.
Code here: https://github.com/Elektraglide/tek4404
I've managed to write a DHCP client and telnetd and port uemacs and have a (kinda) working window system written from scratch in C.
Pic here:
https://miro.medium.com/v2/resize:fit:1280/format:webp/1*a8PNwQ9g_3S27AxlWS…
All the networking seems to revolve around calls to ldiddle() and wdiddle() (no kidding!) These read and write kernel values in the absence of ioctl()
Anyone here recall Network Research Consultant's network stack?
There appears to be no way of making a broadcast socket.
And of course I would love to hear from anyone who also has a Tektronix 4404
Hi... I'm seriously rusty on official RSTS installation procedures. I'm trying to install DEC C using the C_V1_2.tap file from the bitsavers bits/DEC/pdp11/rsts directory. It's actually a TPC file, in spite of what the extension suggests. Once I supply the correct format, SIMH recognizes it and RSTS can see the tape contents.
Then I try @[0,1]install c81. Point to the tape, answer the destination, and then it asks me for the "library" tape and complains when I give it the C tape again (labels don't match).
So what is it looking for? Does anyone have the C installation procedure handy?
paul
