« BackLT6502: A 6502-based homebrew laptopgithub.comSubmitted by classichasclass 4 hours ago
  • vardump 3 hours ago

    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.

    • cosmic_cheese 2 hours ago

      For me the interesting alternate reality is where CPUs got stuck in the 200-400mhz range for speed, but somehow continued to become more efficient.

      It’s kind of the ideal combination in some ways. It’s fast enough to competently run a nice desktop GUI, but not so fast that you can get overly fancy with it. Eventually you’d end up OSes that look like highly refined versions of System 7.6/Mac OS 8 or Windows 2000, which sounds lovely.

      • rahkiin 40 minutes ago

        Given enough power and space efficiency you would start putting multiple cpus together for specialized tasks. Distributed computing could have looked differently

      • yoyohello13 6 minutes ago

        This is basically the premise of the Fallout universe. I think in the story it was the transistor was never invented though.

        • bluGill 2 hours ago

          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.

          • Aurornis 35 minutes ago

            > I remember using the web on 25mhz computers. It ran about as fast as it does today with a couple ghz.

            I know it’s a meme on HN to complain that modern websites are slow, but this is a perfect example of how completely distorted views of the past can get.

            No, browsing the web in the early 90s was slooow. Even simple web pages took a long time to load. As you said, internet connections were very slow too. I remember visiting pages with photos that would come with a warning about the size of the page, at which point I’d get up and go get a drink or take a break while it loaded. Then scrolling pages with images would feel like the computer was working hard.

            It’s silly to claim that 90s web browsers ran about as fast as they do today.

            • ok_dad 10 minutes ago

              No, I think he’s right. I don’t recall the web being any faster today than it was thirty years ago, download speed excepted. The overall experience is about the same, if not worse, IMO.

              • raverbashing 2 minutes ago

                Yeah slow?

                Try using a 2400baud modem, that was slow

                • exe34 16 minutes ago

                  what a glorious time that was! now it's too easy to get stuck looking at the stream of (usually AI generated) crap. I long for the time when the regular screen break was built-in.

                • peterfirefly 2 hours ago

                  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.

                  • graemep an hour ago

                    I cannot recall crashes being a problem.

                • tonyedgecombe 23 minutes ago

                  I always think the Core 2 Duo was the inflexion point for me. Before that current software always seemed to struggle on current hardware but after it was generally fine.

                  As much as I like my Apple Silicon Mac I could do everything I need to on 2008 hardware.

                  • alexisread an hour ago

                    Apart from transputers mentioned already, there’s https://greenarrays.com/home/documents/g144apps.php

                    Both the hardware and the forth software.

                    APIs in a B2B style would likely be much more prevalent, less advertising (yay!) and less money in the internet so more like the original internet I guess.

                    GUIs like https://en.wikipedia.org/wiki/SymbOS

                    And https://en.wikipedia.org/wiki/Newton_OS

                    Show that we could have had quality desktops and mobile devices

                    • kaashif 3 hours ago

                      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.

                      • jhbadger 2 hours ago

                        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.

                        • vardump 2 hours ago

                          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.

                        • vidarh an hour ago

                          There are web browsers for 8-bits today, and there were web browsers for e.g. Amiga's with 68000 CPU's from 1979 back in the day.

                          • PetahNZ 2 hours ago

                            We did have web browsers, I had Internet Explorer on Windows 3.1, 33mhz 8mb RAM.

                            • phwbikm 2 hours ago

                              I still remember the Mosaic from NCSA. Internet in a box.

                              • drzaiusx11 2 hours ago

                                Probably was "Windows 3.11, For Workgroups" as iirc Windows 3.1 didn't ship with a TCP/IP stack

                                • dpe82 2 hours ago

                                  There was a sockets API though (https://en.wikipedia.org/wiki/Winsock) and IIRC we all used Trumpet Winsock on Windows 3.1 with our dialup connections. But could have been 3.11 - my memory is a bit hazy.

                              • JdeBP 3 hours ago

                                Transputers. Lots and lots and lots of transputers. (-:

                              • romperstomper an hour ago

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

                                Maybe they could, as ASICs in some laboratories :)

                                • myself248 3 hours ago

                                  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.

                                  • iberator 3 hours ago

                                    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.

                                    • vidarh an hour ago

                                      I don't see how this contradicts any of what they said, unless they've edited their comment.

                                      You're right we had graphical apps, but we did also have very little video. CuSeeMe existed - video conferencing would've still been a thing, but with limited resolution due to bandwidth constraints. Video in general was an awful low res mess and would have remained so if most people were limited to ISDN speeds.

                                      While there were still images on the web, the amount of graphical flourishes were still heavily bandwidth limited.

                                      The bandwidth limit they proposed would be a big deal even if CPU speeds continued to increase (it could only mitigate so much with better compression).

                                      • cluckindan 2 hours ago

                                        Not JavaScript. Facebook.

                                        • j16sdiz 2 hours ago

                                          Netscape 2 support javascript on 16-bit Windows 3.1

                                      • phwbikm 2 hours ago

                                        I have a Hayes 9600kbps modem for web surfing.

                                        • rm30 2 hours ago

                                          I remember when I went from 286 to 486dx2, the difference was impressive, able to run a lot of graphical applications smoothly.

                                          Ironically, now I'm using an ESP32-S3, 10x more powerful, just to run Iot devices.

                                          • drob518 an hour ago

                                            Depends how pervasive OC3 would have gotten. A 1080p video stream is only about 7 Mbps today.

                                          • intrasight 3 hours ago

                                            Well, we wouldn't have ads and tracking.

                                            • vidarh an hour ago

                                              Prodigy launched online ads from the 1980s. AOL as well.

                                              HotWired (Wired's first online venture) sold their first banner ads in 1994.

                                              DoubleClick was founded in 1995.

                                              Neither were limited to 90's hardware:

                                              Web browsers were available for machines like the Amiga, launched in 1985, and today you can find people who have made simple browsers run on 8-bit home computers like the C64.

                                              • peterfirefly 2 hours ago

                                                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.

                                                • p_ing an hour ago

                                                  The young WWW had garish flashing banner ads.

                                                • dheera an hour ago

                                                  > Would we still get web browsers?

                                                  Yes, just that they would not run millions of lines of JavaScript for some social media tracking algorithm, newsletter signup, GDPR popup, newsletter popup, ad popup, etc. and you'd probably just be presented with the text only and at best a relevant static image or two. The web would be a place to get long-form information, sort of a massive e-book, not a battleground of corporations clamoring for 5 seconds of attention to make $0.05 off each of 500 million people's doom scrolling while on the toilet.

                                                  Web browsers existed back then, the web in the days of NCSA Mosaic was basically exactly the above

                                                  • Aurornis 30 minutes ago

                                                    The whitewashing of the past in this thread is something else.

                                                    Did everyone forget the era of web browsing when pages were filled with distracting animated banner ads?

                                                    The period when it was common for malicious ads to just hijack the session and take you to a different page?

                                                    The pop-up tornados where a page would spawn pop ups faster than you could close them? Pop unders getting left behind to discover when you closed your window?

                                                    Heavy flash ads causing your browser to slow to a crawl?

                                                    The modern web browsing experience without an ad blocker feels tame compared to the early days of Internet ads.

                                                    • dxdm 4 minutes ago

                                                      What you describe sounds like the late nineties to me, not what we had with the technology of (at most) 1990. There are orders of magnitude between available performance and memory on both ends of this decade.

                                                • deckar01 31 minutes ago

                                                  3D printer beds have been getting bigger, but slicers don’t seem to account for curling as large prints cool. The problem is long linear runs on bottom infill and perimeters shrinking. I’ve been cutting my large parts into puzzle like shapes, but printing them fully assembled. This adds curved perimeters throughout the bottom layer, reducing the distance stress can travel before finding a seam to deform.

                                                  That said, a retro laptop this thick would look really nice in stained wood.

                                                  • rustyhancock 2 hours ago

                                                    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...

                                                    • ted_dunning 2 hours ago

                                                      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!

                                                      • guidoism an hour ago

                                                        > Yes, I know I'm crazy, but

                                                        Any time I see this phrase I know these are my people.

                                                        • readme an hour ago

                                                          Crazy for wanting a computer that's actually yours.

                                                          I believe there will come a day where people who can do this will be selling these on the black market for top dollar.

                                                        • ekaryotic 3 hours ago

                                                          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-...

                                                          • nine_k 2 hours ago

                                                            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.

                                                          • lysace 9 minutes ago

                                                            Good timing: My current weekend project is constructing something similar to the the first third of Ben Eater's 6502 design (last weekend was the clock module plus some eccentricities).

                                                            It occurred to me that given the 6502's predictable clock cycle timings it should be possible to create a realtime disassembler using e.g. an Arduino Mega 2560+character lcd display attached to the 6502's address/data/etc pins.

                                                            Is there relevant prior work? I'm struggling with my google fu.

                                                            • zahlman 44 minutes ago

                                                              > 46K RAM

                                                              Not 64?

                                                              (Edit: I see part of the address space is reserved for ROM, but it still seems a bit wonky.)

                                                              • marcodiego 3 hours ago

                                                                Maybe this can achieve RYF certification.

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

                                                                • louismerlin 2 hours ago

                                                                  Awesome! Gives me mnt pocket reform vibes.

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

                                                                  • drob518 an hour ago

                                                                    Brilliant! I love it. Bonus points for using the eWoz monitor. It’s giving me the itch to build it.

                                                                    • p0w3n3d 2 hours ago

                                                                      Wow. It's fresh as a rose! Congratulations!

                                                                      • detay 3 hours ago

                                                                        this post made me smile. why not!!! 6502 my first processor. <3

                                                                        • drkrab 3 hours ago

                                                                          Way cool! When can I buy one?

                                                                          • kayo_20211030 3 hours ago

                                                                            Complete madness! But, I love it.

                                                                            • einpoklum 3 hours ago

                                                                              And it mostly runs Microsoft software, too... Basic from 1977 :-P

                                                                              • analog8374 3 hours ago

                                                                                It's commodore 64 ish. I like it