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soneil

4,800 karma · joined December 20, 2010

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soneil··on A 386 PC for Your RP2350
Eight Megabytes would be a feature, these days.
soneil··on Cores in space: The core memory module from a 1980 Spacelab computer
ahh - I see where my dots weren't connecting, then.

I pictured having a current driver on each plane, so the data bits coming in would be enable bits for the current drivers. Which obviously means 18xQty current drivers.

I think you're describing having one big current driver for the whole job, and then data bits drive the inhibits to counter them.

I guess I'm looking through too modern a lens - pumping 18*600mA into the write cycle, plus (up to 18)*600mA into the inhibit, sounds insane to me (hitting 20A for a write) - but I can see that multiplying the current drivers may have sounded nuts in the 50s.

soneil··on Cores in space: The core memory module from a 1980 Spacelab computer
Can I confess I've never quite wrapped my head around the application of the 'inhibit' line in this?

If a write cycle is just a read cycle with a) a reversed polarity and b) you don't care about the contents of the sense line - I don't get why current coincidence is sufficient during the read cycle, but not during the write cycle?

Every description of this I've ever read, sound like inhibit and current coincidence solve the same problem - but have never left me clear on why we need to solve it twice.

soneil··on Tragically, as many as 9625 out of every 10k individuals may be neurotypical
It’s probably worth noting it’s (2002) too. The internet was a different audience.
soneil··on Learning about "The Unix Time-Sharing System"
Was C really later? I thought UNIX had been ported before it made it to Berkeley.
soneil··on Quake Shareware, a CD-ROM just a little too full
yeah, software travelled exactly the same way as rumours that such and such had a rib removed - remarkably effectively.

Also the same way we got viruses, long before anyone I knew had the Internet.

soneil··on The other Sean Byrne doesn't exist
Sligo's not _that_ bad.
soneil··on The other Sean Byrne doesn't exist
Yeah it's pretty much a John Smith, which I assume was half the point, and is now most the problem.
soneil··on Single log line is 49KB+ (ext4) / 110KB+ (btrfs) of systemd-journald disk writes
I tried similar. Each command looped 5 times, ignore the best and worst times, and average the mean three.

    journalctl >/tmp/all.log  0m59.763s
    journalctl | grep -c sshd 0m57.767s  (otherwise >all is the only example encumbered by write speeds)
    wc -l /tmp/all.log        0m0.336s
    grep -c sshd /tmp/all.log 0m1.776s
soneil··on I'm a USB-C Maximalist
I have a couple of devices that are 12V over usb-c. The devices themselves are fine, but the wallwarts the mffr provided are just that - 12v over usb-c. No PD. If a device is expecting 5V, there's a healthy chance it'll .. stop expecting 5V.

We blame usb-c for all this, but it does feel like some mffrs are going out of their way to screw it up.

soneil··on Just Let Me Write Digits
I'm curious if there's a reason this six-cell mechanism has become the defacto?

It seems this should just be a single input field styled appropriately, but it feels like there must be an underlying reason I'm missing.

soneil··on .self: A new top-level domain designed to support self-hosting
This feels like a good place to reel out my favourite anecdote; community college IT (or for the natives; BTEC), 1998; our programming tutor told us to "ignore the internet" because it's a fad.

Almost 30 years, and every so often I still wonder about where that got him.

soneil··on TIL: You can make HTTP requests without curl using Bash /dev/TCP
SNDMSG-over-ftp pre-dates UUCP by 5 years, so I think that one's pretty clear-cut.

(Not that I'm claiming anything's original here, ftp & smtp are both in the nwg/ietf family tree, which makes it easy to draw parallels. There's probably 100 other influences.)

soneil··on TIL: You can make HTTP requests without curl using Bash /dev/TCP
It used to be even more literally so - network mail started off as using FTP to SNDMSG onto a remote system instead of your own. In RFC475, FTP has MAIL and MLFL (mailfile) commands to support this.

I think it's neat that you can still find echoes of this. MAIL worked by just appending to MLFL, separating records with CRLF.CRLF - which is still how Data segments are terminated in SMTP.

soneil··on Swift bricks to be installed on all new buildings in Scotland
I think what really stands out about this, is that having it installed as a pre-made brick is very cost-effective.

But this cost-effective route isn't readily available to most people, as most people don't build homes. Developers build lots, and then sell finished homes. So you need to entice developers. And historically, "the stick" is the only enticement developers remotely pay attention to.

"If you want a swift brick, install one yourself" is much easier said than done - you're talking about removing an existing brick, replacing it, hoping you don't damage the course or the cavity, probably voiding any warranty on a new home, etc. It's certainly not a £35 retrofit.

soneil··on Swift bricks to be installed on all new buildings in Scotland
It may amuse you to know they're both essentially the same thing. GBP is formally Pound Sterling, formerly 1 pound (tower pound / 20 troy ounces) of Sterling Silver. Which is why £ is a stylised L.
soneil··on Rare concert recordings are landing on the Internet Archive
2100 entries over 40 years is pretty much a show a week. Talk about artefacts of a life well lived.
soneil··on Rare concert recordings are landing on the Internet Archive
Sigur Ros have a surprising number of shows on their ftp, which is delightfully retro.
soneil··on The Seasons Are Wrong
I think it's interesting that traditionally Ireland used a different calendar for seasons - https://en.wikipedia.org/wiki/Irish_calendar

So Winter is Nov, Dec, Jan - and Spring is Feb, March, April. Which honestly, makes sense to me.

Except it's the middle of April, I'm freezing, and got pelted with hail yesterday. The west coast cares little for seasons!

soneil··on Judge orders restoration of Voice of America
The last one is so close to the point. Iran had Internet blackouts earlier this year, Russia has been experimenting with the same - options like shortwave are just as relevant as ever.
soneil··on Head of FCC threatens broadcaster licenses over critical coverage of Iran war
I think "odious" really undersells it. A free press is an important part of a functioning democracy. What's the use in being able to vote against people doing wrong, if no-one's allowed to tell you about the wrong?
soneil··on MacBook Neo
> Now that you can't beat people to death with IBM hardware, what do you use instead?

I believe IBM hardware is still applicable for this, the Thinkpad just isn't IBM hardware anymore.

soneil··on DNS Explained – How Domain Names Get Resolved
I have to admit - I still grind my teeth every time I see "dns propagation" used without a direct follow-up that it's a myth, you're looking at cascading cache expiry.

Propagation might be a useful way to visualise it, but doesn't match reality unless every cache is a warm cache.

soneil··on FBI couldn't get into WaPo reporter's iPhone because Lockdown Mode enabled
Compelled speech is protected, fingerprints aren't.

Imagine it's 1926 and none of this tech is an issue yet. The police can fingerprint and photograph you at intake, they can't compel speech or violate the 5th.

That's exactly what's being applied here. It's not that the police can do more or less than they could in 1926, it's that your biometrics can do more than they did in 1926. They're just fingerprinting you / photographing you .. using your phone.

soneil··on 1 kilobyte is precisely 1000 bytes?
later, like 1956? The world's first commercial HDD was 5,000,000 characters.
soneil··on 1 kilobyte is precisely 1000 bytes?
> with the context mostly being HDD manufacturers who want to inflate their drive sizes

This is a myth. The first IBM harddrive was 5,000,000 characters in 1956 - before bytes were even common usage. Drives have always been base10, it's not a conspiracy.

Drives are base10, lines are base10, clocks are base10, pretty much everything but RAM is base10. Base2 is the exception, not the rule.

soneil··on 1 kilobyte is precisely 1000 bytes?
It goes back way further than that. The first IBM harddrive was the IBM 350 for the IBM 305 RAMDAC. It was 5 million characters. Not bytes, bytes weren't "a thing" yet. 5,000,000 characters. The very first harddrive was base-10.

Here's my theory. In the beginning, everything was base10. Because humans.

Binary addressing made sense for RAM. Especially since it makes decoding address lines into chip selects (or slabs of core, or whatever) a piece of cake, having chips be a round number in binary made life easier for everyone.

Then early DOS systems (CP/M comes to mind particularly) mapped disk sectors to RAM regions, so to enable this shortcut, disk sectors became RAM-shaped. The 512-byte sector was born. File sizes can be written in bytes, but what actually matters is how many sectors they take up. So file sizing inherited this shortcut.

But these shortcuts never affected "real computers", only the hamstrung crap people were running at home.

So today we have multiple ecosystems. Some born out of real computers, some with a heavy DOS inheritance. Some of us were taught DOS's limitations as truth, and some of us weren't.

soneil··on 1 kilobyte is precisely 1000 bytes?
They almost always mean power of 10, unless you're discussing RAM, RAM addressing, or RAM pages. (or flash, which has inherited most of the same for most of the same reasons)
soneil··on 1 kilobyte is precisely 1000 bytes?
This is the bit (sic) that drives me nuts.

RAM had binary sizing for perfectly practical reasons. Nothing else did (until SSDs inherited RAM's architecture).

We apply it to all the wrong things mostly because the first home computers had nothing but RAM, so binary sizing was the only explanation that was ever needed. And 50 years later we're sticking to that story.

soneil··on Reliable 25 Gigabit Ethernet via Thunderbolt
Pretty much anywhere you have networked storage? Gigabit is about on-par with pre-sata ATA133.
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