External screw for Specky???

Hi, Evgen!

18 Apr 98, Evgen Shablitskiy writes to All:

ES> I had a question here. Is it theoretically possible to make an external
ES> hard drive for the Spectrum???
ES> On PC, I read that there are external devices. They attach simply - to the com
ES> port. You can probably do something similar on Specky.

Not COM, but LPT... The printer...

ES> Very interesting, ALL, is this possible or is it nonsense???

In principle, it is possible, but it will slow down wildly.
However, on Specky you might not even notice this...

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasan Border Guards]

є─────────────────────────── ────────────────────────
║ On Evgen Shablitskiy wrote All:
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[about external hard drive]
ES> Plus is obvious: you won’t need a hard drive controller do it on the mat
ES> sectrum board or insert it into the ISA slot. Also the cost of mat. boards
ES> will decrease (at least for the same sprinter) and maybe their sizes. So,
ES> what, just like that!
This is definitely not a plus. The hard drive controller on the motherboard consists of several buffer chips and a decoder. Their total cost is 5 rubles. And an external device will definitely
cost a lot more. Plus the brakes when working through the computer..

P.S. It’s easier to remove the screw cable from the computer and hook it from the outside, if necessary
that would be cheap.

Ivan, with Big Greetings.

ZX-Spectrum - #10 years old !
Vladimir Ilyich - #80 years old !

ES> Take the case, insert the internal ide screw into it and the
ES> controller
ES>, connect the power, maybe batteries :@) and all this is hung on the com
ES> port of the Spectrum. I had pro 3.2 circuits, so the description of
ES> said that the developers planned
ES> to implement this com port in the next versions of pro.

It is implemented in future versions. And in the map of ports there is room left for one more. Only the speed there is 9600/NONE maximum.

Bye, with a pack of viciouses, Pavel Fedin.

ES> controller, power is connected, you can use batteries :@) and all this
^^^^^^^^^^ easy to say..
ES> hangs on the Spectrum com port. I had pro 3.2 circuits, so there
ES> in the
ES> description it said that the developers in the next versions of pro
ES> planned to implement this com port.
ES> Then there would be one standard for writing to and reading from the port. And
ES> hard makers could create any designs and offer
ES> optimal circuit solutions.

Tue 21 Apr 1998 00:06, Ivan Mak wrote to Evgen Shablitskiy:

IM> This is definitely not a plus. The hard drive controller on the motherboard is
IM> several buffer chips and a decoder. Their total cost is
IM> 5 rubles. And an external device will definitely cost a lot more.
IM> Plus the brakes when working through a computer..

IM> P.S. It's easier to remove the screw cable from the computer and attach it
IM> to the outside, if you need something cheap.

Whoever developed (ZS) first gets the cards.
IMHO there's no point in creating hardware standards. The old days (when everything should be
our own, not like someone else’s) are gone...

I wonder how All feels about the hardware people who invent a “bicycle”
incompatible with “competitors” in advance?

Sincerely, Alexey Ivanov

є─────────────────────────── ────────────────────────
║ On the day Alexey Ivanov wrote to Ivan Mak:
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AI> Whoever developed it first (ZS) gets the cards.
AI> IMHO it’s not a big deal produce hardware standards. The old days (when everything
AI> had to be its own, not like someone else’s) are gone...

AI> I wonder how All feels about the hardware people who invent
AI> a “bicycle” that is incompatible with “competitors” in advance?

It’s not a matter of inventing bicycles. (Although, this matter is very interesting and, imho,
necessary!) The point is that the standards are closed (We won’t say whose ones.)

And the standard for connecting an HDD to a Sprinter is such that the screw can be connected using almost
any existing circuit. (But the ZS standard is not included in it.)

Ivan, with Big Greetings.

20 Apr 98 23:10, Pavel Fedin wrote for Evgen Shablitskiy:

ES>> it hangs on the Spectrum port. I had pro 3.2 circuits,
ES>> so the description said that the developers in the next
ES>> pro versions planned to implement this com port.

PF> It is implemented in future versions. And in the port map there is room left
PF> for one more. Only the speed there is 9600/NONE maximum.
9 kilobytes per second. Do you know what the transfer speed of the hard drive is
through the IDE?

PF> Bye, with a pack of viciouses, Pavel Fedin.

Sincerely, Evgen.

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasansky border guards]

ES> 9 kilobytes per second.

You’re wrong, 9 kilobits per second, a little more than a kilobyte per second... ;)

ES> Do you know what the transfer speed of the hard drive is via the IDE?

But no one bothers to make a COM port on the Spectrum with a speed of
28800 baud. Personally, I made a MIDI controller on a Spectrum with a 3.5 MHz processor,
the exchange rate there was 31250 baud.
Quite sufficient speed, considering the Spectrum memory capacity.
We don’t have the task of organizing Windows swapping! ;)

Sincerely, George

PF>> It will be implemented in future versions. And in the port map there is space left
PF>> for one more. Only the speed there is 9600/NONE maximum.

PF> 2.5 megabytes per second. I measured it myself on my car. ;-)))))
And I have 2.7, mine is cooler! :@)
I asked about the Spectrum one.

With respect, Evgen.

GS> You are wrong, 9 kilobits per second, a little more than a kilobyte per second...
GS> ;)
Yes, bad luck! :@)

ES>> Do you know what the transfer speed of the hard drive is via the IDE?

GS> But no one is stopping you from making a COM port on the Spectrum with a speed
GS> of 28800 baud. I personally did it on a Spectrum with a 3.5 MHz MIDI controller,
GS> there the exchange rate was 31250 baud.
GS> Quite sufficient speed, considering the Spectrum memory capacity.
So what’s the matter, this is a real alternative to all sorts of perversions, such as an expansion board. You need a screw, connect it, work. Not needed, don't connect. It is also quite possible to use such a
port for transmitting data via a null modem to the PC and
back. There you look and the CD-ROM will spin. :@)
Only, probably, the hardmakers won’t be able to cope with such a problem, they
don’t have enough strength! :@))))))))))))))))))))))))

GS> We don’t have the task of organizing Windows swapping! ;)
Nu, nude. :@)

GS> + Origin: >>> AND LET THE SPECTRUM BE WITH YOU <<< (2:461/124)
Randomize Usr 0.
Sincerely, Evgen.

AK> In general, it’s not very big - 3-4 mega. Sometimes it's up to 11...
Damn, at the Spectrum, at the Spectrum! :@)

Sincerely, Evgen.

∙·■ PF>
∙·■ PF> 2.5 megabytes per second. I measured it myself on my car. ;-)))))

Let me intervene. I have one hard drive - 2.2 Mb, and the second 1.7 Mb.
And there are also 3-4 Mb and probably more...
And 9600/HONE - what does it have to do with 9 kilobytes per second? After all, 9600 is 1 kilo per second...

And may the Force be with Me and My friends!
Darth

░▒▓ Starfleet Admiral Black Lord Eugene ▓▒░

■ Location: Death Star ■ Location: Star Deaths
■ Imperial Title: Dark Lord ■ Title: Black Lord
■ Pilot Rating: Elite ■ Flight Rating: Elite

Depends on which controller is attached...
If it’s like Nemo’s, it doesn’t seem like it can have more than 15 kilos, I can’t say for sure
I can’t say, I have to look at the papers, but they’re at home...
I can say that the fastest controller is the one
ZX-Next, the fastest and most well-thought-out in terms of port addressing
And Scorpov’s is really slow...
The truth is, the speed mainly depends from the program, and of course, well-thought-out port addressing...

>With respect, Evgen.

For this I say goodbye, Oleg.

PF>> 2.5 megabytes per second. I measured it myself on my car. ;-)))))
ES> And I have 2.7, mine is cooler! :@)
ES> I asked about the Spectrum one.

I foresee about 300 kb/sec. But obviously not like 9600 bps. I also remember 68020. ;-)

є─────────────────────────── ────────────────────────
║ On Evgen Shablitskiy wrote to Pavel Fedin:
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ES> So what's the matter, this is a real alternative to all sorts of perversions, such as
ES> expansion cards. You need a screw, connect it, work. Not needed, don't
ES> connect.

And to the screw is a controller that provides positioning and exchange.
We've already gone through it. Quite a long time ago... But TR-DOS won - because of its cheapness... :(

ES> It is also quite possible to use such a port, IMHO, to transfer
ES> data via a null modem to the PC and back.

Tell that to Zhavoronkov! ;-)

ES> You'll see that the CD-ROM will spin. :@)

Are you going to load jpgs and pdfs from it?

ES> Only, probably, hard makers won’t be able to cope with such a problem, they don’t have enough strength
ES>! :@))))))))))))))))))))))))

:(

With best wishes - Andrey Khristov (ha...@robin.alt.ru)

[Team Horse Aviation] [Team beer, girls & sofa]
[Team Electric Welding Must Die!] [Team Khasansky border guards]

AK> Directly depends on the implementation of the controller.
Let’s not go from empty to empty, so take and blur
into the echo the circuit of a normal controller with a description. Do as
The Great Sinclair did. Give the people the diagram, then we can talk about the growth of
users. Then it will be possible to discuss something.
And in such a HDD situation as now, only the phrase of Mikhail Zhvanetsky is suitable -
"Let's argue about the taste of pineapples in champagne with those who ate them, let's
talk about the collapse and rise of Hollywood, without having seen a single film!" =)

Oleg AKA Olav