ZX Hard #01 06 мая 1999

Люди

Conversation - Nemo & VTS.

        Correspondence: Nemo 'VTS.


 VTS'98

subj: Nemo> VTS
remarks: VTS
date (SPb post-office) :15-10-98



       Dear Roschupko VS!


   I understand your impatience and bewilderment
about the rarity of the correspondence. Explain
why.

   Correspondence time-consuming
(And for the professional time and money synonyms, ie, in 
essence, this is equivalent to subsidies). It was assumed that 
the communication channel you will be paid out of supplies

Boards ...

   On a thorough, detailed response requires several hours. The 
SP-B subsistence at least (for today) 800r. (This amount, when

which a person does not fall into the hungry fainting during 
the month (and two, for example, may fall)). Divide by the norm 
hours (200ch) and you will receive a cost of response, ie 
10-15r. Contrast this with prices of cars or the price of your 
purchase (The latter), plus postage - total

15-20p. The public does not understand: they are fed mom and 
dad - that is, they do not _professionaly_. Add to this that 
there are several correspondents at your level, with 
_regulyarno_ that need to correspond. 

   Remember that when a Russian says
"Laziness", American says, "not beneficial". I
do not consider myself an American, but things should be
called by their names - otherwise there
misunderstanding.


   Nevertheless, comment on recent
letter.

   On boards (supply) is not scary. Just volume and frequency 
of correspondence decrease. By the way, what do you think about

to publish our correspondence in LITERALLY
KrNews?

I would especially like to stay: without any revision. In this 
case, I'll _vynuzhden_ regularly to respond to the letter. To 
do this, for you to make copies (at sent) from their letters.


For production.


   In my opinion the main thing that you ought to - is the 
creation of structures of people, ie well-functioning community 
where everyone would place and work was appreciated and bring 
benefit to all. Based on this structure, we can do a lot. 
Technical same issues - circuit design, or, say, the production 
of printed circuit boards - are secondary and easily solved. By 
the way, bait boards themselves do not recommend. Maybe makes 
sense to think about bartering? Home the problem of in-kind 
exchange - this volume, but they are very small. 

   In Barnaul, for example, prepare a brochure
by KAY'yu - it may be a means to my
their calculations without the involvement of cash.


   Now for the specs.

VTS> meaning the specification for the bus
> KAY'ya Nemo-bus.


    You are right that it is necessary, but as
do? I had tried and experienced by
found that the polished and refined the document on the bus 
requires about months of work (one day left on the description

Geometry boards - 2 pages A4 plus 2 draft). Ie it suffices to 
seriously challenge that fell swoop is not resolved. But I 
think This can be done gradually. The problem

that do not pay. By the way, I was here recently for the 
"Comintern", we have in St. Petersburg is the scientific 
production association of electronics. So I was told that up to 
75% of the time and money goes just for documentation. The rest 
is all mechanized. 

With respect to specifications for use
periphery of the system resources Nemo-bus.
First, you'll never be able to reduce
together and firmly secure the ports, but that is
unnecessary and impossible.

VTS> Well, the ports still need to think
> But with the RDR need to do something, otherwise
> Will be a mess, because supply SRAM
> 6264/256 is very simple and will
> Very fast and convenient, and sometimes about the> alkaline 
transfer IN / OUT. 

There are arbitration IORQ / IORQGE. The approach is
to make a new and less frequent in the application of the 
device more complex and detailed decoders, which have 
kolichestvo handled a bit more than say, the system devices of 
mass applications (eg, IDE-drive). Second, the bus should be 
limited to a range of devices. At the moment, up to 90% devices 
can be connected via the system Connector Centronics, without 
opening the company, and attaching them to need the outside. 
Needed Modem - click! and it is in place. Programmer needed - 
removed the modem and plugged the programmer. 

VTS> In this case, you must have the possibility> to connect 
multiple sequence devaysov > To Centronics. For example, by 
analogy with > Printer, use the remaining

> OK-four outputs. But this is the> delny conversation (or 
article). 


    Interruption is almost impossible
track, and the reason lies in the "stone"
Z80. There's nothing you can do. This, incidentally,
applies to the IS-DOS. Ie It is not in the system, and Z80.

VTS> plz, explain that you have in view> control. Their point 
of view I have outlined in > ZX-Hard0. Yes, and from IS-DOS in 
the worst case> case would require only a small correlation> 
torate. Ie I want to say that the Z80 > Can keep track of 7 
interrupt (IM2). 


    Further the text I realized that you
want to make a global and absolute
standard. It is impossible. Than the global
thing, so it should be easier to describe
and functioning. In other words, more succinct. This is a 
fundamental requirement. Otherwise will not spread.


VTS> Actually, I did not want to do _glo> balnogo_ standard, 
and specifically this> hour so no one standard for all > 
Needed, and nothing to spend time on him. 


    As for relations on the Internet. So do the hacks. Ie a man 
sitting in the budgetary organizations (ibid. gets salary) and 
has on it (the organization), free entrance to the Internet and 
free workplace - Comp. And very surprised that with him nobody 
wants to talk of professionals, and alone lamer (hacks, 
amateurs), as he is so cool in Internet'e with his

PC'kom ...

VTS> Well, why not run well on the Inernet?
> (Even their collections Nemo_FAQ banned
> On it to distribute ...) Of course, from
> On-line connection of a specific human> century of little 
help. But, for example, > Is a convenient long-distance trunk

> For ZXNet, to distribute software,
> Etc. Yes, and you can connect on-again> nomu. We in the Kuban 
State University, for example, (in > Some kind of direction 
from their education> Nogo institution), you can download 
Posey> put on the Internet. And Polytech, however, > Only for 
its students, Provide a> us to that possibility ... The very > 
On-line connection is, in my opinion, > 6 euro / hour. And the 
servers chat.ru, > Usa.net, etc., can be free

> Mailbox.
> I would have to Fido ponaezzhal. I do not know
> As you have, but we have half the mulberries
> People - Lameroo with a capital L. Es> whether specifically 
on Spectrum echo, then > What else to expect from PTs'shnikov 
sitting > On the emulsion and nevezzhayuschih where it

> TR-DOS shoves three-letter cancellation> of, or as CONVER 
considers the length of the fi> la more than 255 sectors ... 
Normal > Spectrum hacker would have simply taken

> Dug in these prog. But no, we're
> Pts'shniki we have Fido ...
> But people like Mednonogov you> climb indeed the case.
> Ie When the PC - a tool, not comp.


    For example, I simply can not at
their clients' money have PC'yuk. This
20-30 $ / month for hardware and $ 10-20 / i
month on the Internet.

After all, this money will have to be included in the price 
devaysov! This overhead. Bust You can instantly - I do not work 
on the budget money, and money __ryadovyh__polzovateley__ - and 
these amounts are not comparable. Suche state, in short, 
creates the idiots in the set. 

    Now about the "familiar". None of your friends for free 
_regulyarno_ not work budet.Odnazhdy he says that he felt like 
it. Ie Reliability addresses _nizkaya_, so it and

not _publikovat_. Operational addresses
Internet, I certainly have. But if
there will start to pump soap idle audience - from "nothing to 
do" at work - then gateway simply washed away. Useful 
information for me to "sink" in lamerskom sea. I can not and 
advise through the gateway - a person who works, just "tired" 
and information channel "fails / etc." And again

same, the processing time of correspondence. If
Comp is not personal (in the sense, not his)
time spent _dazhe__bolshe_ than on
written response. Ie it _sereznye_,
_regulyarnye_ loss of time ...


    On XTR-have to Dima Lomov. It seems
the only thing he knows ... AND
Thank God, at least something useful to do.


    By ISDOS'u really only work so I
Leontiev, (yet) given me Vadim Eliseev
their authority. I kind of like "crisis
Manager - speaking bird language.
Ie to me now "hanging" still OS'. That
As scene on canvas ISDOS'u - that
company split in two. (This technique is in
small circles called "paravozikom). In
one firm (the tender), add up all the losers and bad 
directions, and then bankrupt. As a result, he "paravoz" rides

further, have no debts and obligations. Then
that remains in the "paravoze" (ie, Iskra
Soft) at the moment - it's carpets
(Soft :-)), and plumbing (hard :-)). I
now trying to revive what is left of the department of 
programming. It's great robbed. The bottom line is that the 
department subsidized the future "paravozika, and own discs 
sold Zonov, never dropped in ISDOS penny. This, in my opinion, 
was the main cause of the crisis in ISDOS. Parent company, in 
essence, subsidized Zonova, and other "pirates". And they it 
seems to be realized. ________________________________________


date (SPb): 11/12.11.98
(C) Nemo


        Dear Roschupko VS


    Perhaps you will come to mind that
Here they say, both money immediately ... Of course, this 
argument correct. But the point is not only that. In order to 
understand how do computers - they need to do.

Know-how in words (verbal) is not transferred. Requires a joint 
methodological and systematic work. Regular work.

Then something will begin to understand. Otherwise -
scholasticism. I like it, frankly, abhorrent. There is never a 
certainty that the reporter knew the right thing. For its part, 
will try to make sure that you are on at least not to step on 
the rake, which took place on myself. Spectrum needs to be done 
as simply as possible. Tough decisions (on the forehead) are 
simple, simple is the solution complicated, because require 
much labor and time for your location. In addition, users of 
open-minded, and the new (really new) hardly enters into their 
heads. 

________________________________________

(C) VTS'99


    Hello, Vyacheslav G..



    1. We have the opportunity to produce printed circuit 
boards. Promise not only to 3'y accuracy class, but even though 
motherboards iBm (multilayer, surface mount, a mask. At the 
appropriate price, of course). Ie I would like to clarify the 
possibility of transferring *. pcb files. Well, suppose I 
threaten to mat.platu I will not. But the rapid production of 
the periphery (for example, Beta Disk or IDE-drive) would be 
very convenient. And here following items: 2



    2. If the IDE-drive will be made
we need to conclude some agreement with ISDOS about installing 
on HDD systems (such as OEM?). Yes, and basically the price of 
CDs from us - 10p. (Including all system prog), and 20p. are 
only new Toys ...



    3. Software, which I sent (our newspapers, mostly) - 
frivarny and I for him nothing was going to want.


    If the software and will be commercial, I
it necessarily will turn your attention.


    4. As for RAM expansion through the SIMM I
Understand your position ("playing cards in football :-)). But 
we can still consider this option. Onboard 1Mb of RAM, and

Nearby there is a connector (eg, SNP), on
The pinout matches the SIMM. Then the players will have to be 
satisfied with 1MB (and jack SNP, in contrast to the panel 
SIMM, razshebit harder). If, however, require more RAM, this 
SNP is inserted into an expansion card: 

    a). SIMM with soldered SNP. Apply
it subsequently to the HRC will be a problem ... (And for us to 
need) 

    b). Payment made on the basis of all those
same RU7, 41256, 44256, 411000, 441000, and
etc. (Self assembly).

    In addition, this standard will be
use and other peripherals for
Spectrum.


    5. In KAY1024 appeared ext. connector
connect TV via SCART ...

    I have the following sentence:
make on-board universal external
connector, which would be duplicated
all "normal" connectors. This will provide an opportunity not 
to put them on two sets in Installation in a non-Korvetovsky 
housing. In addition, that will be facilitated by a connection 
fee during repair and testing.


    Yet there does not hurt to add some
following signals: +5 v, +12 v, clocking
Local transducer, F = 14 MHz, switch to synchronize with an 
external 14 Mhz generator (overlay on TV, etc.), CSI,

FID, border ...

    In this case, this connector can be installed, if 
necessary, various interface cards - from 
PAL-koderov/modulyatorov amplified bass for AY to device 
overlay on the TV, use the studios ... 


    6. Serial port.

    Connecting Vicomm via tape is suggestive of a sequential
interface. Because recorder itself has actually daemon may be, 
has the meaning of the connector tape in / out to derive 
directly TTL I / O without VI1 and divisor, and +5 v. A tape 
recorder if necessary, connected through a small pribambas, 
maybe just a pinch. 

    Then get a broader band
(Frequency) and better noise immunity.

    +5 V can be planted, probably by 2 foot connector (it will 
signal ground), and GND will be at the screening of his 
contact. 

    Although you can do: put
7-pin socket, and TTL-tape to bring to
extra 2 pins.


    A ISDOS supports tape? ..


    In addition, the possible alternative -
streamer :-)

    Ordinary tape recorder with a good record
for high-quality cassette probably overclock 15kHz without much 
difficulty. If here to introduce multi-position coding,

yes work in this direction, it is
it seems the real capacity of a dozen or two megabytes (12-25 
disks). Physical limit, probably (I have not tested), lies in 
the area 80-100 MB (without error correction, and

etc.) - though such a device will already be
too complicated ...

---------------------------------------
is-dos 17-01-99 21:20 msk
last edition 23-04-99