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  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    [QUOTE=slenkar;728128]A famous developer. (Carmack?) posted on twitter about how making a 16k basic rom would be a big challenge.[/QUOTE]

    Meh. John Grant squeezed an integer BASIC into 4K in the ZX80.
    chev chev October 2013 Sinclair Basic
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    [QUOTE=daveykins;728226]Indeed - and remember the ZX80 was only 4K as well :-)[/QUOTE]
    Yep. And, additionally, 4KB was also the size of ZX80 ROM.
    ccowley ccowley October 2013 Sinclair Basic
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... 4K (if you bought a ZX80, you were probably hardcore).
    Paradigm Shifter Paradigm Shifter October 2013 Sinclair Basic
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... 4K (if you bought a ZX80, you were probably hardcore).[/QUOTE ...
    chev chev October 2013 Sinclair Basic
  • Significant machines by yearI'd roughly divide Spectrum's hardware history into four periods: Sinclair (1980 to 1985), Amstrad (1986 to 1988 ), Russian (1989 to 1996) and Homebr…

    [QUOTE=Matt_B;731043]You could throw the MK14 in for 1978. That seems fairly uncontroversial, at any rate.[/QUOTE]
    Not really a pre-cursor of the Spectrum in the way that the ZX80 was though, was it?
    chev chev October 2013 Hardware
  • Significant machines by yearI'd roughly divide Spectrum's hardware history into four periods: Sinclair (1980 to 1985), Amstrad (1986 to 1988 ), Russian (1989 to 1996) and Homebr…

    ... in the way that the ZX80 was though, was it?[/QUOTE ... years between it and the ZX80. Still, I think it set ... other major influence for the ZX80 would have been the New ...
    Matt_B Matt_B October 2013 Hardware
  • Significant machines by yearI'd roughly divide Spectrum's hardware history into four periods: Sinclair (1980 to 1985), Amstrad (1986 to 1988 ), Russian (1989 to 1996) and Homebr…

    ... ULAplus.

    [list][*]1980—ZX80
    [*]1981—ZX81
    [*]1982 ...
    chev chev October 2013 Hardware
  • Wowsas Check this oot[url]http://www.amazon.co.uk/Computer-Belgian-Chocolate-Tablet-Theyll/dp/B006IDT61M/ref=sr_1_80?ie=UTF8&qid=1383271315&sr=8-80&keywords=gift+ideas+fo…

    ... be a mashup of the ZX80, ZX81 and ZX Spectrum.
    chev chev November 2013 Sinclair Miscellaneous
  • Wowsas Check this oot[url]http://www.amazon.co.uk/Computer-Belgian-Chocolate-Tablet-Theyll/dp/B006IDT61M/ref=sr_1_80?ie=UTF8&qid=1383271315&sr=8-80&keywords=gift+ideas+fo…

    [QUOTE=aowen;732952]Quite possible the materials are Belgian but it's made in Britain. The keyboard seems to be a mashup of the ZX80, ZX81 and ZX Spectrum.[/QUOTE]


    Someone here to tell them about the keyboarderrors?
    Dr BEEP Dr BEEP November 2013 Sinclair Miscellaneous
  • Sinclair meeting in Buenos AiresHi! Last saturday (30/11/13) we had here in Buenos Aires a small meeting with some Spectrum fans ;) I'll share with all of you some pictures of the …

    ... and brought the calculators, the ZX80 and a TV80 which doesn ...
    Hernán Pablo Álvarez Hernán Pablo Álvarez December 2013 Sinclair Miscellaneous
  • Why?I'm just wondering why people are here? Why are we working on or using old hardware? Why are some of you putting a lot of effort in upgrading the ha…

    ... taking anything away from the ZX80/81).

    The machine ...
    Paul-J Paul-J December 2013 Sinclair Miscellaneous
  • Toasted +3Oops.. I shorted one of my +3 (being clumsy with multimeter, doh) when measuring PSU connector pins :D Any immediate guesses what exactly died on thi…

    ... a good /CLK on a ZX80 :)

    Same goes for ...
    balford balford December 2013 Hardware
  • Does anyone know what the little plastic clips that .....held the zx80 together were called, I am trying to find some but have no idea what they are any help would be appreciated... thank you

    ... .com/offer/details/Replacement-Sinclair-ZX80-Plastic-Case-Rivets-2345[/url ... .com/offer/details/Replacement-Sinclair-ZX80-Motherboard-W-Buttons-2192[/url ...
    rwap rwap December 2013 Hardware
  • Does anyone know what the little plastic clips that .....held the zx80 together were called, I am trying to find some but have no idea what they are any help would be appreciated... thank you

    The ZX80 assembly instructions are here:

    [url]http://www.zx81.de/english/zx80_e.htm[/url]

    There's a list of miscellaneous parts on page 8.
    Battle Bunny Battle Bunny December 2013 Hardware
  • Maze-K for Sinclair ZX81Found this new game for the the Spectrum old brother. [URL="http://www.zonadepruebas.com/viewtopic.php?f=15&t=4646"]Maze-K for ZX81[/URL]

    Excellent - I have not seen anyone mention this on sinclairzxworld.com (the ZX80/ZX81 forums), so will post it there too :)
    rwap rwap December 2013 Brand new software
  • Retro Game Comparison Blog.So, here's a shameless plug for my blog, which should interest some of you. Then again, it's not biased towards any particular system, so it might no…

    ... release of Tetris? Obviously the ZX80 and Jupiter Ace, for example ...
    ewgf ewgf January 2014 Announcements
  • Guess what this is.Went to a SCIENCE GALLERY today while walking around this I found this. I had to ask if it was what it said it was. guess it was. Ok lets see if an…

    Zx80?
    jammajup jammajup February 2014 Chit chat
  • Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…

    ... one of his 4 boxed zx80's.. but he wasn't ...
    fog fog March 2014 Sinclair Miscellaneous
  • Clive in the dock![URL="http://www.cambridge-news.co.uk/Cambridge/Sir-Clive-Sinclair-asked-to-dig-into-his-memory-banks-when-called-to-give-evidence-at-fraud-trial-201…

    total ****ing mockery, the two muppets in question are aged 49, and 50.

    do the maths considering concept designs for Zx80/81 where done in 1978 ish
    Zaph0dd Zaph0dd March 2014 Sinclair Miscellaneous
  • ZX Spectrum Evolution Graphic Compo 2014While this year edition of International Vodka Party we would like to organize a graphic compo especially for ZX Spectrum Evolution (320x200 in 16 co…

    ... , just like the good old zx80/zx81 time! :)
    nitrofurano nitrofurano March 2014 Announcements
  • We could design the LokiWouldn't it be great... if this community would develop what Sinclair himself started but was never finished: a successor of the 128K with 'cartoon l…

    ... of entirely acting like a ZX80 ;)
    ZX Uno even has ...
    bverstee bverstee March 2014 Hardware
  • JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…

    ... threads over at the excellent ZX80/ZX81 forums at [URL="http ...
    bobs bobs March 2014 Development
  • How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…

    I actually learnt on a ZX80, way back in 1982. I ...
    LuMan LuMan March 2014 Development
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... , the Spectrum arrived with a ZX80 power supply unit, and now ...
    CornishManicMiner CornishManicMiner March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    If you have a working ZX80 power supply that is worth selling on its own - probably worth ?20-?25, unless it is a white ZX80 power supply, then it's worth even more.
    rwap rwap March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... , the Spectrum arrived with a ZX80 power supply unit[/QUOTE]

    Doesn't the zx80 have a phono style plug ...
    Basher Basher March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ZX80 and ZX81 PSUs have a ...
    1024MAK 1024MAK March 2014 Hardware
  • Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…

    ... question, Mark is correct the ZX80 uses a 3.5mm mono ...
    CornishManicMiner CornishManicMiner March 2014 Hardware
  • zx81 boxed value?Hi peeps I have become aware of someone selling a Zx81 working and boxed,I know at the end of the day that the value of individual items is in the ey…

    ... situation to that of the ZX80, which do fetch upwards of ...
    bobs bobs April 2014 Sales
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... could generate a "high" res ZX80 / ZX81 monochrome image with a ...
    1024MAK 1024MAK April 2014 Hardware
<1…28293031323334>

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