>apple ][ users know that there is no type-ahead during disk access.
Actually, there is a one character keyboard rollover, and that's
there whether or not disk access is going on.
Tim.
i'm putting together a mac+ for someone and while testing it, i noticed it
started clicking inside. then later, the machine started making a high pitched
whistling noise, almost kinda like what you hear when you're close to the back
of a tv while it's on. the video worked fine however. i presume it's a power
supply problem, but can anyone say what component is failing here? smacking
the left side of the case would make the whistling quit, although the clicking
continued. i fear it's probably that infamous cold solder joint issue. i'm
looking at a spare mac power supply board; does anyone know any exact
locations of common solder joint failures? finally, if i do touch up some
contacts with a soldering iron, MUST the high voltage lead be discharged? i'm
hoping i can just remove the protective cardboard cover, reheat the solder
joints and not even go near the HT lead or tube at all.
david
maybe? the answer here is obvious! i'm always taken aback by the wealth of
knowledge his brain/storage devices hold!
In a message dated 10/20/98 2:06:01 PM US Eastern Standard Time,
dastar(a)ncal.verio.com writes:
> Q. Is Tony Duell really a supercomputer with an incomprehensively large
> database of factual knowledge and highly advanced artificial intelligence
> algorithms?
> A. Maybe
>> I'll summarise the results when the replies dry up.
> Well the replies never really got started. I only got five replies, all
> said they were interested. I can only conclude that there are not that
> many UK collectors on this list.
So did you take the non-UK replies out ? Even if the english
like to ignore it, Europe is just a short hop away :)
I think I know at least 3 or 4 Germans who would like
to join and I guess there are a lot more.
Gruss
H.
--
Ich denke, also bin ich, also gut
HRK
> silliness of the phrase "partial vacuum" repeatedly... I'll completely
> leave out the concept of "vacuum leak"!)
Oh, I've been known to say 'That valve (tube) is white round the top.
Somebody has let the vacuum out'
Seems like quite a reasonable way of putting it :-)
Try explaining how important a tight vacuum system on a mass spectrometer is
to some PHD chemists. Not to mention how to find the leaks. It is amazing
how little they teach in "leading" colleges today. Definately NO common
sense. So often all the problem consists of is the last thing they worked
on but did that enter their mind?
Dan
>Date: Wed, 21 Oct 1998 10:15:22 -0400
>To: ard(a)p850ugl.demon.co.uk
>From: "Charles E. Fox" <foxvideo(a)wincom.net>
>Subject: TRS80-4,i/o
>
>
> Hi, Tony:
>
> In the Model 4 reference manual there are four pages that seem to be
relevant:
>
>#26-Model 4 I/O Bus, #27-I/O Bus Timing Diagram, #28 &29- Model 4 Port Bits.
>
>I can try scanning these and email them to you if you haven't dug up the
information elsewhere.
>
> Charlie Fox
Sorry to post this to the list, but when I tried your email address it
bounced.
Charles E. Fox
Chas E. Fox Video Productions
email foxvideo(a)wincom.net Homepage http://www.wincom.net/foxvideo
Does anyone know why MS decided to limit the type-ahead buffer in MS-DOS
to 16 characters? Also, why they never increased this over time?
Basically on-topic. I really want to know because I've always cursed it.
Sellam Alternate e-mail: dastar(a)siconic.com
-------------------------------------------------------------------------------
Ever onward.
Coming in 1999: Vintage Computer Festival 3.0
See http://www.vintage.org/vcf for details!
[Last web site update: 09/21/98]
apple ][ users know that there is no type-ahead during disk access. I have a
][+ with an enhanced keyboard encoder board that gave it 255 character type-
ahead at all times. it was cool to keep typing in program code while saving
the file. only problem was playing games where you didnt want the game to keep
reading repeated keypresses. thankfully, the type-ahead can be disabled by
pressing the space bar when powering up.
In a message dated 98-10-21 13:15:23 EDT, you write:
<< Re:
> > Does anyone know why MS decided to limit the type-ahead buffer in
MS-DOS
> > to 16 characters? Also, why they never increased this over time?
Lack of foresight? Lack of vision?
> Basicly it's BIOS not DOS, And as the machines got faster,
> the need for the type ahead decreased.
Boy, is *that* wrong! :)
I *still* run into the typeahead limits today, on the fastest
machines around. 16 characters is probably fine when you're
doing ordinary text entry, with no special machine tasks
being requested. It *isn't* fine when you do something like:
deltree foo
<typeahead 17 or more characters while the computer is working>
> Just add one of the many vintage type ahead buffer enhancer.
> They have been yery popular, once upon a time...
I'd still be running the one I used to use ... but it
stopped working as of Windows 3.1 :)
>>
> Does anyone know why MS decided to limit the type-ahead buffer in MS-DOS
> to 16 characters? Also, why they never increased this over time?
Basicly it's BIOS not DOS, And as the machines got faster,
the need for the type ahead decreased. So blame IBM, but
in fact, when tey designed BIOS they had mainly ASSM Apps
in Mind - not this typ of slowish other things. And for an
inteligent reprogrammable terminal/workstation 16 Bytes are
quite enugh.
> Basically on-topic. I really want to know because I've always cursed it.
Just add one of the many vintage type ahead buffer enhancer.
They have been yery popular, once upon a time...
Gruss
H.
--
Ich denke, also bin ich, also gut
HRK
I have a GRID laptop that has a hard drive was wiped. (It's good but
empty). This machine uses an external disk drive. Does anyone have one
they'll sell or loan me so that I can get the OS installed on the hard
drive again? The laptop uses a DB-25 connector for the disk drive. Will
any other external disk drive that has this connector work on the GRID?
Joe
