The microdrive was an awesome device.

edited February 2011 in Hardware
I have to say i used to love the Microdrives. It was a damn shame they never took off as i could have seen them being a really good way of storing your work and ven buying them for games on the ZX Spectrum.

Is there any way of putting the proper games onto one ?
Post edited by morcar on
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Comments

  • edited February 2011
    morcar wrote: »
    It was a damn shame they never took off as i could have seen them being a really good way of losing your work

    ftfy ;)
  • edited February 2011
    when i had one with my 48k i never lost anything. In fact i lost more on tape than on microdrive
  • edited February 2011
    I still don't understand how that endless tape loop inside it works.
  • edited February 2011
    orange wrote: »
    I still don't understand how that endless tape loop inside it works.

    it's one of those things that's impossible to understand from diagrams etc

    I didn't fully get it until I took one apart
  • edited February 2011
    They work like an 8-track cassette if that's any help.

    Basically, you've got a single reel inside where tape is wound on to the outside of the reel and gets pulled out from the middle.
  • edited February 2011
    the think that used to amuse me was when a friend of mine used to save a 128k game to one

    he'd load the game
    hit the multiface 128 button
    wait for the main block to be save
    once the light went off swap it before the next block of code was saved
    then he'd edit the basic loader to load the main parts off drive one then the remaining of drive 2

    I had a rotronics wafadrive but only 64k tapes, never did find any 128k ones
  • edited February 2011
    Matt_B wrote: »
    They work like an 8-track cassette if that's any help.

    Basically, you've got a single reel inside where tape is wound on to the outside of the reel and gets pulled out from the middle.

    but what about opposite direction, how does it get put back in middle?
  • edited February 2011
    Matt_B wrote: »
    Basically, you've got a single reel inside where tape is wound on to the outside of the reel and gets pulled out from the middle.

    Say what now???!!!

    But, but ... it's not thick enough to get on the underside ... I mean ... WHAT?!?!?

    I think I DO NEED a diagram!

    Anyone have a busted one they're willing to snap a pic of and post here?
  • edited February 2011
    Found this.

    schm.gif

    But I'm still not completely sure how they get the tape from the middle-and-then-out. I see it on the diagram above but just don't get it!

    Is the pin in the middle (part of hub) two story tall? I.e. full tape 1st floor then somehow "twisted" to 2nd floor, then out?
  • edited February 2011
    I really like them, I just wish they were more reliable and the carts lasted longer, then they would be my preferred medium of choice
  • edited February 2011
    Got my Microdrive when Sinclair released the special "pack" - the one that came with an Interface 1, Microdrive and software (Tasword etc.). At the time I was rather impressed and it beat using a tape recorder with my 48K Spectrum. Personally I never lost any data either and performance was good (at the time).

    I missed them when I moved from the Spectrum to an Electron and back to cassette.

    My first disk drive was on an Amstrad CPC664 and that was seriously impressive. Once you had used a "proper" disk you realised the limitations of the Microdrive.

    Paddy
  • edited February 2011
    This isn't about the Microdrive specifically, but it probably describes the basic principle:
    With a reel turning at a constant rate, the tape around the hub has a lower linear velocity than the tape at the outside of the reel, so the tape layers must slip past each other as they approach the center. The tape was coated with a slippery backing material, usually graphite and patented by Bernard Cousino, to ease the continuous slip between the tape layers. While the design allowed simple, cheap, and mobile players, unlike a two-reel system, it did not permit rewinding of the tape
    (Wikipedia page, here)

    Nx
  • edited February 2011
    Personally I never lost any data either and performance was good (at the time). Paddy

    Same here. Most of my Spectrum microdrive cartridges still work OK. I can't say the same for my QL ones, though: these I bought second hand, and so I have no idea how they might have been stored, plus the QL drive unit is slightly mis-aligned, so I have to hold the carts in the drive unit firmly for them to work.
  • edited February 2011
    ZnorXman wrote: »
    Found this.

    schm.gif

    But I'm still not completely sure how they get the tape from the middle-and-then-out. I see it on the diagram above but just don't get it!

    Is the pin in the middle (part of hub) two story tall? I.e. full tape 1st floor then somehow "twisted" to 2nd floor, then out?
    Thats EXACTLY what Guesser meant...
    guesser wrote:
    it's one of those things that's impossible to understand from diagrams etc

    I didn't fully get it until I took one apart
    I wanna tell you a story 'bout a woman I know...
  • edited February 2011
    What was great back then was the number of firsts we got to experience... first sound, colour, real keyboard, mass storage, printer, monitor, mouse etc. etc. etc. I would not have missed the 80s for the world. :-)

    [Edit] Oh and the very first episode of... MIAMI VICE!

    Paddy
  • edited February 2011
    What was great back then was the number of firsts we got to experience... first sound, colour, real keyboard, mass storage, printer, monitor, mouse etc. etc. etc. I would not have missed the 80s for the world. :-)

    [Edit] Oh and the very first episode of... MIAMI VICE!

    Paddy
    You and me Paddy we're obviously very similar. IMO the 80's was the best decade ever and I'd give almost anything to go back there.

    Not sure about Miami Vice though...
    I wanna tell you a story 'bout a woman I know...
  • edited February 2011
    karingal wrote: »
    Not sure about Miami Vice though...

    Ah whether you liked MV or not there is no doubt it broke the mould and introduced a whole new genre of TV. MTV Cops was a great idea and just so 80s. Need to take my socks off and break out my pastel coloured jackets. ;)

    Paddy
  • edited February 2011
    karingal wrote: »
    You and me Paddy we're obviously very similar. IMO the 80's was the best decade ever and I'd give almost anything to go back there.

    Everything seemed new and possible in the 80s. There were bad things too but overall it was a time of great optimism.

    Paddy
  • edited February 2011
    I don't know. I didn't really like the constant threat of nuclear war we had through the 80s (the Russians at one point were convinced the US was looking to make a first strike, a very dangerous time). Today's terrorism threat is so laughably crap in comparison (in fact, terrorism is laughable compared to almost any other daily risk in life).
  • edited February 2011
    Winston wrote: »
    I don't know. I didn't really like the constant threat of nuclear war we had through the 80s (the Russians at one point were convinced the US was looking to make a first strike, a very dangerous time). Today's terrorism threat is so laughably crap in comparison (in fact, terrorism is laughable compared to almost any other daily risk in life).
    That just gave everyday life a bit of an edge...
    I wanna tell you a story 'bout a woman I know...
  • edited February 2011
    Yeah it was worrying times in that regard and at one point it did feel like someone was going to press the big red button. Mind you with hindsight one can see that the enormous defence spending by the Reagan administration simply brought the USSR to its knees - it simply could not compete. Plus the USSR was lucky enough to have someone like Gorbachev in charge.

    Personally I would love to have some real people like Reagan and Thatcher in charge now. I am totally fed up with these useless cookie cutter politicians we have now who are devoid of brains and balls. Plus very few of them seem to have held down a real job - how can you be a career politician!

    Anyway, enough politics and back to the Spectrum. :-P

    Paddy
  • edited February 2011
    Anyway, enough politics and back to the Spectrum. :-P
    Ah yes, back to 1984...
    I wanna tell you a story 'bout a woman I know...
  • edited February 2011
    well nuclear war wasn't something worth worrying about as it's something outside of your control and if it kicks off you'll barely have time to notice... :smile:
  • edited February 2011
    karingal wrote: »
    IMO the 80's was the best decade ever and I'd give almost anything to go back there.

    Ah, yes ... when the Colosseum was finally ready and the Pantheon was destroyed in a fire ... and lets not forget the first steam engine, the Aeolipile by Hero of Alexandria.

    *sigh* those were the days, or so you keep on telling us :razz:
  • edited February 2011
    I agree the microdrive was an awesome devise

    I ordered one soon after buying my Spectrum in 83. I don't remember how long I had to wait for it but when it arrived I remember being totally amazed to see how fast a screen loaded. I was even more amazed a few days later when I received a second set from Sinclair. My brother said I should keep it, even new someone who would buy it from me. But since I had signed for delivery I thought it best to send it back.

    I think their biggest drawback was the price of the carts at ?4.95 each they were just too expensive.

    Awesome way back then but now they are just quaint little curiosities, fun to play about with but the DivIDE is a better solution for loading games.

    John
  • edited February 2011
    john58 wrote: »
    I think their biggest drawback was the price of the carts at ?4.95 each they were just too expensive.John

    Rather a lot of money in those days John. Luckily I believe they were ?1.99 when I got my MicroDrive.

    Paddy
  • edited February 2011
    guesser wrote: »
    well nuclear war wasn't something worth worrying about as it's something outside of your control and if it kicks off you'll barely have time to notice... :smile:

    If only that were true. In the 80s we lived in a rural area, not rural enough that you'd not get hit by the blast, but rural enough that it was almost certain that you would survive the initial attack, and probably live long enough to experience dying slowly from a combination of fall-out, injuries sustained in the blast and the nuclear winter [0]. The trouble is basically nuclear weapon systems are fail dangerous so all it would have taken would have been a mistake during a period of percieved or real tension. It didn't help in the early 80s that I had just watched "Threads", probably the most thorougly depressing movie made. Reading some information in back issues of "The Journal of Atomic Scientists" suggests strongly that "Threads" was extremely optimistic in terms of the nuclear winter.

    [0] Nuclear winter is a bit of a misnomer, it is almost entirely unlike "winter"; after a global exchange of 5000 megatons, in the following month or two light levels at mid-day in the northern hemisphere would only reach that of a moonlit night. Even a regional conflict, say between India and Pakistan could cause a "nuclear autumn" that would shorten the growing season in the breadbaskets of Europe and the United States significantly enough to cause severe food shortages. Simply put, nuclear weapons are insanity. Putting them on ICBMs that cannot be destroyed or recalled if accidentally launched is double insanity.
  • edited February 2011
    Sometimes I have the stupid habit of starting reading a thread by the last post, and this time, expecting things about Microdrives, I bumped into nuclear weapons, nuclear winters... scary.





    I promise myself starting reading threads in the usual way.:p
  • edited February 2011
    Hey Winston - remember the 80s film "War Games"?

    "Let's play global thermo-nuclear war"...

    Personally I would prefer a nice game of chess. ;)

    Seriously though, nuclear weapons are insane but atleast the two super-powers in USSR and USA had a reasonable level of control. What is scary these days is the idea of rogue states being able to develop and deploy low-cost dirty nuclear devices.

    Blimey - have I just invented a new market for Uncle Clive?

    The Sinclair ZX Bomb! :razz:

    Paddy
  • edited February 2011
    Winston wrote: »
    If only that were true. In the 80s we lived in a rural area

    so do I, but I live in Lincolnshire :) There'd have been no shortage of bombs going off around here I wouldn't think
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