LT6502: A 6502-based homebrew laptop
134 points
2 hours ago
| 12 comments
| github.com
| HN
louismerlin
5 minutes ago
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Awesome! Gives me mnt pocket reform vibes.

https://shop.mntre.com/products/mnt-pocket-reform

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rustyhancock
37 minutes ago
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Stunning work! Astounding progress since its under 3 months old from PCB to this result.

Funnily enough I've been musing this past month would I better separate work if I had a limited Amiga A1200 PC for anything other than work! This would nicely fit.

Please do submit to HackaDay I'm sure they'd salivate over this and it's amazing when you have the creator in the comments. Even if just to explain no a 555 wouldn't quite achieve the same result. No not even a 556...

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ted_dunning
13 minutes ago
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I love the super clunky retro esthetic!

Takes me back to a time when a laptop would encourage the cat to share a couch because of the amount of heat it emitted.

Amazingly quick as well. Pointless projects are so much better and more fun when they don't take forever!

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vardump
1 hour ago
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I sometimes wonder what the alternate reality where semiconductor advances ended in the eighties would look like.

We might have had to manage with just a few MB of RAM and efficient ARM cores running at maybe 30 MHz or so. Would we still get web browsers? How about the rest of the digital transformation?

One thing I do know for sure. LLMs would have been impossible.

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bluGill
39 minutes ago
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I remember using the web on 25mhz computers. It ran about as fast as it does today with a couple ghz. Our internet was a lot slower than as well.
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peterfirefly
21 minutes ago
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It crashed a lot more, the fonts (and screens) were uglier, and Javascript was a lot slower. The good thing was that there was very little Javascript.
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kaashif
49 minutes ago
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I don't think there's really a credible alternate reality where Moore's law just stops like that when it was in full swing.

The ones that "could have happened" IMO are the transistor never being invented, or even mechanical computers becoming much more popular much earlier (there's a book about this alternate reality, The Difference Engine).

I don't think transistors being invented was that certain to happen, we could've got better vacuum tubes, or maybe something else.

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jhbadger
33 minutes ago
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As someone has brought up, Transputers (an early parallel architecture) was a thing in the 1980s because people thought CPU speed was reaching a plateau. They were kind of right (which is why modern CPUs are multicore) but were a decade or so too early so transputers failed in the market.
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vardump
40 minutes ago
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When MC68030 (1986) was introduced, I remember reading how computers probably won't get much faster, because PCB signal integrity would not allow further improvements.

People that time were not actually sure how long the improvements would go on.

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PetahNZ
40 minutes ago
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We did have web browsers, I had Internet Explorer on Windows 3.1, 33mhz 8mb RAM.
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drzaiusx11
6 minutes ago
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Probably was "Windows 3.11, For Workgroups" as iirc Windows 3.1 didn't ship with a TCP/IP stack
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phwbikm
6 minutes ago
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I still remember the Mosaic from NCSA. Internet in a box.
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JdeBP
1 hour ago
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Transputers. Lots and lots and lots of transputers. (-:
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myself248
1 hour ago
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And imagine if telecom had topped out around ISDN somewhere, with perhaps OC-3 (155Mbps) for the bleeding-fastest network core links.

We'd probably get MP3 but not video to any great or compelling degree. Mostly-text web, perhaps more gopher-like. Client-side stuff would have to be very compact, I wonder if NAPLPS would've taken off.

Screen reader software would probably love that timeline.

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phwbikm
4 minutes ago
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I have a Hayes 9600kbps modem for web surfing.
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iberator
48 minutes ago
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you are wrong. Windows 3.11 era used CPUs with like 33mhz cpu, and yet we had TONS of graphical applications. Including web browsers, Photoshop, CAD, Excel and instant messangers

Only thing that killed web for old computers is JAVASCRIPT.

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cluckindan
42 minutes ago
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Not JavaScript. Facebook.
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j16sdiz
37 minutes ago
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Netscape 2 support javascript on 16-bit Windows 3.1
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intrasight
53 minutes ago
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Well, we wouldn't have ads and tracking.
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peterfirefly
18 minutes ago
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If such an alternate reality has internet of any speed above "turtle in a mobility scooter" then there for sure would be ads and tracking.
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p0w3n3d
9 minutes ago
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Wow. It's fresh as a rose! Congratulations!
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ekaryotic
1 hour ago
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neat. not something i´d hanker for. i saw a 16 core z80 laptop years ago and i often think about it because it can multitask. https://hackaday.com/2019/12/10/laptop-like-its-1979-with-a-...
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nine_k
24 minutes ago
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I implemented "multitasking" (well, two-tasking) between a BASIC program and native code on a Z80, using a "supervisor" driven by hardware interrupts. There's just so much you can pack in a 4MHz CPU with a 4-bit ALU (yes, not 8-bit). It worked for soft-realtime tasks, but would be a rather weak desktop.
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marcodiego
53 minutes ago
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Maybe this can achieve RYF certification.

What I really would love: modern (continously built) modern (less than 10 years old tech) devices ryf-cetified.

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detay
1 hour ago
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this post made me smile. why not!!! 6502 my first processor. <3
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drkrab
1 hour ago
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Way cool! When can I buy one?
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einpoklum
1 hour ago
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And it mostly runs Microsoft software, too... Basic from 1977 :-P
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kayo_20211030
1 hour ago
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Complete madness! But, I love it.
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analog8374
1 hour ago
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It's commodore 64 ish. I like it
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