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derSammler
@derSammler@oldbytes.space  ·  activity timestamp 5 days ago

Task for today: install Red Hat #Linux 7.2 on the #AlphaServer DS15. Took me ages to find a copy that actually boots and not crash when starting the kernel...

#DEC #digital #AXP #RetroComputing

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jbz
@jbz@indieweb.social  ·  activity timestamp last week

DEC Mini, a lovely 3D-printable retro computer

「 The DEC Mini can be fitted with most of the currently existing SOC computer boards including the Raspberry Pi, LattePanda, Udoo Volt, Banana Pi and much more, allowing for the widest range of computing and performance choices in the industry 」

https://decmini.tin.cat/

#dec #3dprinting #retrocomputing

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Martin Bishop
@toomanysecrets@mastodon.social  ·  activity timestamp 3 weeks ago

VMS (Virtual Memory System) was a landmark operating system developed by Digital Equipment Corporation ( #DEC ) between 1975 and 1977, in conjunction with the design of the #VAX (Virtual Address eXtension) architecture. Conceived as a next-generation environment to succeed the #PDP11 line and its RSX operating systems, VMS was engineered to exploit the full capabilities of 32-bit virtual memory addressing.
(follow the thread) 👇🏻

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Karl Matthias 🇺🇦 and 9 others boosted
Altomare
@altomare@oldbytes.space  ·  activity timestamp 4 weeks ago

Some neat info about 70s hard drive contaminants.

From the DEC RK05 disk drive maintenance manual (DEC-00-HRK05-C-D)

#retrocomputing #dec

""Relationship of Disk Head, Disk, and Contaminants"

Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons:
* Space between the head & platter: 100µ
* Smoke particle: 250µ
* Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle
* Lint & dust: no unit either, 4 times bigger(ish) than the smudge
* Humar hair: .004"

The oxide layer on the disk is 200µ wid
""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid
""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid
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Altomare
@altomare@oldbytes.space  ·  activity timestamp 4 weeks ago

Some neat info about 70s hard drive contaminants.

From the DEC RK05 disk drive maintenance manual (DEC-00-HRK05-C-D)

#retrocomputing #dec

""Relationship of Disk Head, Disk, and Contaminants"

Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons:
* Space between the head & platter: 100µ
* Smoke particle: 250µ
* Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle
* Lint & dust: no unit either, 4 times bigger(ish) than the smudge
* Humar hair: .004"

The oxide layer on the disk is 200µ wid
""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid
""Relationship of Disk Head, Disk, and Contaminants" Graph showing a side/cutoff view of hard drive reading head over the platter, with size comparisons: * Space between the head & platter: 100µ * Smoke particle: 250µ * Fingerprint smudge: no unit but it's drawn twice as big as the smoke particle * Lint & dust: no unit either, 4 times bigger(ish) than the smudge * Humar hair: .004" The oxide layer on the disk is 200µ wid
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Paolo Amoroso
@amoroso@oldbytes.space  ·  activity timestamp last month

And now for something completely meta: Interlisp-10 inside Medley Interlisp.

The terminal emulator of the window at center is connected to SDF's PDP-10 system running Interlisp-10 under TOPS-20 (TWENEX). The shell with the terminal emulator and Medley Interlisp are running on Linux.

#interlisp #twenex #dec #retrocomputing

Screenshot of the black and white desktop of a 1980s graphical workstation environment. The desktop has a gray background pattern and several windows with a white background and a title bar with white text on a black background. The main window is a terminal emulator with a remote session connected to a PDP-10 system running the Interlisp-10 Lisp environment.
Screenshot of the black and white desktop of a 1980s graphical workstation environment. The desktop has a gray background pattern and several windows with a white background and a title bar with white text on a black background. The main window is a terminal emulator with a remote session connected to a PDP-10 system running the Interlisp-10 Lisp environment.
Screenshot of the black and white desktop of a 1980s graphical workstation environment. The desktop has a gray background pattern and several windows with a white background and a title bar with white text on a black background. The main window is a terminal emulator with a remote session connected to a PDP-10 system running the Interlisp-10 Lisp environment.
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Paolo Amoroso
@amoroso@oldbytes.space  ·  activity timestamp 2 months ago

Since I'm playing with Interlisp-10 on TWENEX I put together a reading list of documentation to get familiar with DEC's operating system.

https://archive.org/details/tops-20-users-guide

https://archive.org/details/tops-20-commands

https://archive.org/details/tops-20-user-utilities

#retrocomputing #dec #interlisp

Internet Archive

TOPS-20 User Utilities Guide : Digital Equipment Corporation : Free Download, Borrow, and Streaming : Internet Archive

DEC manual
Internet Archive

TOPS-20 Commands Reference Manual : Digital Equipment Corporation : Free Download, Borrow, and Streaming : Internet Archive

DEC manual
Internet Archive

TOPS-20 User's Guide : Digital Equipment Corporation : Free Download, Borrow, and Streaming : Internet Archive

DEC manual
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Stefano Marinelli boosted
Eugene :freebsd: :emacslogo:
@evgandr@mastodon.bsd.cafe  ·  activity timestamp 3 months ago

On this weekend the BIG hacker's festival, named "ChaosConstructions" is starting!

https://chaosconstructions.ru/

There are should be a lot of retro tech: #SunMicrosystem servers, some old #DEC stuff, #SunOS (or #Solaris ) terminals, PCs from Win95/98 era, etc. All hardware is working drgn_happy

I was on the festival in the last year. Some photos from this festival are here: https://eugene-andrienko.com/photo/2024/09/01/summer-photos-2024.html (section "Computers").

So, on the next week(s) you (my subscribers) will be flooded by the photos of the various retro tech, sorry (but no sorry) drgn_happy_blep

#HackThePlanet#RetroComputing

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Eugene :freebsd: :emacslogo:
@evgandr@mastodon.bsd.cafe  ·  activity timestamp 3 months ago

On this weekend the BIG hacker's festival, named "ChaosConstructions" is starting!

https://chaosconstructions.ru/

There are should be a lot of retro tech: #SunMicrosystem servers, some old #DEC stuff, #SunOS (or #Solaris ) terminals, PCs from Win95/98 era, etc. All hardware is working drgn_happy

I was on the festival in the last year. Some photos from this festival are here: https://eugene-andrienko.com/photo/2024/09/01/summer-photos-2024.html (section "Computers").

So, on the next week(s) you (my subscribers) will be flooded by the photos of the various retro tech, sorry (but no sorry) drgn_happy_blep

#HackThePlanet#RetroComputing

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Paolo Amoroso
@amoroso@oldbytes.space  ·  activity timestamp 4 months ago

Heads up to DEC enthusiasts: @bitsavers uploaded dozens of scans of issues of The Mini Tasker DECUS RT-11 SIG newsletter.

https://bitsavers.org/pdf/dec/decus/DECUS_SIG_Newsletters/mini-tasker

#retrocomputing #dec

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