Comonda

Listens to Mountains.
Talks to Computers.
Solves Problems.

Comonda boosted:
2025-07-12
Comonda boosted:
2025-05-28

The DECSYSTEM 2020 was the smallest PDP-10 digital made.

It was also their last as the Jupiter KC10 was never realized.

The Foonly, Systems Concepts and later XKL would continue advancing the PDP-10.

#retrocomputing #vintagecomputing #terminal

A PDP-10 model KS10 (DECSYSTEM 2020), TU45 tape drive and a VT52 decscope terminal
2025-05-19

@webmacher Those are quite robust. I have a couple of them in use in various devices and just one failed a few months ago after a similar time๐Ÿ‘Œ

2025-04-17

@forgejo Upgraded my instance from v7 to v11 - it went smoothly as always ๐Ÿ‘Œ

2025-03-15

Today, my latest purchase, a toshiba t1000xe laptop, arrived. The device is in good shape, but the Conner harddisk drive is not!
Something is leaking from it - and it's not data ๐Ÿซ I just learned, this is the (now liquified) sealing between the upper and lower part of the disk.. a common problem with those drives.

#retrocomputing #toshiba #T1000XE #conner

A conner cp-2024 hddGreen goo is leaking out of the hdd.. quite a lot!You shouldn't be able to see through the disk!
2025-02-08

Those were the days when we put these lamps into our computers. I've had this pair lying around for years and it still works, great!

ps: I bought a Korad bench-powersupply ๐Ÿ˜Ž
#retrocomputing #electronics

A Korad bench-powersupply is powering some old rainbow lamps
2025-01-09

@fbarbeira It's originally a Supermicro SuperServer 5018A-FTN4 (SYS-5018A-FTN4), but with a changed case (Supermicro CSE-505-203B with connectors on the front) and changed fans.

So it's small (1U), quiet and has a low power consumption: 18 watts idle, 33 on full stress.

2025-01-08

This SSD in the front died during resilvering today, as I was upgrading my #proxmox server (zfs-array) with 4 new SSDs.
The old ones are at least 10 years old and maybe from the same batch, so there were chances of duplicate fail. Luckily this didn't happen and there are backups, of course!

I read about failing disks in long used nas-drives during the resilvering process, but it never happened with my equipment.

#homelab

opened Supermicro server
2024-10-11

I'm already starting my New Year's resolutions: just simplify!

This is a reminder to myself.

eom

2024-10-11

Hilarious, that works!

Does this even count as #retrocomputing ๐Ÿค”

A floppy drive is attached to a smartphone. A folder with the name "hello world" is listed.
2024-09-27

Just arrived from Texas - Papertape!

The rolls are complete and undamaged, but unfortunately I don't know what they were used for or what is stored on them.
Nevertheless it's a certain satisfaction to see the individual bits.

"eBay International Shipping" is a rabbithole ๐Ÿค  ๐Ÿ™‚โ€โ†•๏ธ

#retrocomputing #papertape

Texas Tough!Three roles of Papertape.Data starts after about one meter
2024-09-27

@behindtheconsole the design is stunning... love it!
which model is this?

2024-09-05

No collection is complete without a core memory module. In my case from a Saratov-2 computer manufactured in the USSR.

The individual rings are smaller than the head of a pin, amazing!

As soon as I have a macro lens for my camera, I will take new photos. Additionally I'll add something for scale...

For more information:
rusue.com/cemetery-of-soviet-c
curiousmarc.com/computing/core

#retrocomputing #computerhistory #corememory

"Saratov-2" Ferrite Core Memory plate"Saratov-2" Ferrite Core Memory plate - other angle"Saratov-2" Ferrite Core Memory plate - zoomed"Saratov-2" Ferrite Core Memory plate - top down view
2024-08-30

@rhialto It should be random picks of CPUs, Logic, Test pattern, and Memory.
I lack a suitable magnifying glass or macro lens for my camera, so currently I can't tell... hopefully that will change soon ๐Ÿ”ฌ

2024-08-29

They have finally arrived: 4-inch wafers from the 1980s (the one in the middle is from rockwell).
So my boring computer chatter becomes a more tangible experience ๐Ÿ˜„

#retrocomputing

5 pieces of 4inch wafersThe Rockwell wafer is in the centerA more zoomed-in picture of the wafer
2024-08-28

@muzej This is getting better and better, now it's really on my list... ๐Ÿ‘

2024-08-28

@waffles it looks great with the terminal on top!

Comonda boosted:
2024-08-22

In 1989, Intel introduced the 486 processor, improving the performance of the 32-bit 386. Unlike the 386, the 486 has an on-chip 8 KB cache and a floating-point unit. The 486 has over a million transistors.
I took this die photo and labeled it with the main functional blocks.

A die photo of the 486. It is a complex rectangular chip with various patterns on it including dark rectangles for the cache. The main function blocks are the memory interface, unified cache, floating point unit, microcode ROM, decode logic, data path, and data path control.
2024-08-13

@tommythorn @flexion this made my day, thx for sharing ๐Ÿ‘

Comonda boosted:
Computer History Museum ๐Ÿ‡ธ๐Ÿ‡ฎmuzej
2024-08-11

๐ŸŒ•๐Ÿงฒ We're always excited when we can add another missing piece of technology to our collection โ€“ we already have ferrite core memory, but this is our first example of rope memory. ๐Ÿคฉ According to Wikipedia, this type of memory was used as read-only memory (ROM) and was a crucial component of the Apollo Guidance Computer (AGC) that landed on the Moon.

rope memory

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