Originally, the SIPP was considered much more reliable than the SIMM. The
SIMM sockets were a new product at that time and failure rates were pretty
high, and it was easy to package a system more densely with SIPPs than with
SIMM's. It was easy to bend the pins on the SIPP's, though, and retailers
soon tired of having to hand-hold customers whose problems were simply bent
pins, as, once bent, the pins tended to bend again and again until they
were broken and repair was improbably if at all possible. Consequently,
SIMMs, though less reliable but easier to install, and less likely, in
either event, to sustain long-term damage took over the market.
Ultimately, socket problems were defeated by persistence, educating the
user public, and improved socketing technology.
Dick
----------
> From: Max Eskin <max82(a)surfree.com>
> To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
> Subject: Re: 30-pin SIMMS
> Date: Saturday, February 27, 1999 9:10 PM
>
> On Sun, 28 Feb 1999, Tony Duell wrote:
> >A SIPP is exactly a SIMM with pins soldered on - even the pinouts are
the
> >same. And thus SIPPs suffer from bent pins, just like individual chips
> >do. That's why they went out of fashion.
>
> But why did anyone attach the pins in the first place?
>
> --Max Eskin (max82(a)surfree.com)
I bought an S-100 card today at a hamfest for $1.00, now can someone tell me what it is ?
It's a "65k byte SupeRam 2" P65D2 Rev. C by PIICEON, Inc.
It has 64k of DRAM on it, 4 rows of 8 4116's, but the rest of the board does not look very "Ram-like", AND it has a 34-pin board edge connector at the top of the board. I realize that this suggests a 5" floppy drive interface, but a combined RAM and FDC card ????? Plus, the edge connector is VERY un-floppy like, normally a floppy connector would have half of the pins being ground, this clearly looks like it has active signals on almost all 34 lines.
Anyone who has information, it would be appreciated. I'd most like to get a manual and switch settings [there are FOUR dip switches on this thing], also the IC at 9B is missing and the board screening does not identify what should go there.
Regards,
Barry Watzman
>What movie featured a group of kids who traveled into space with a ship
>they built controlled by an Apple //c?
I think it was 'Explorers', starring a very young River Phoenix as
the computer nerd... all the schematics for the devices which
produced oxygen for them, surrounded them with a force field,
and allowed them to translate from position to position all came
to them in dreams...
I loved the space aliens in it (obviously brother and sister)
who had stolen their parent's space vehicle... the brother talked
in sound bites from old tv shows...
It comes on once in awhile on HBO (or can be rented)...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
On Wednesday, March 03, 1999 3:35 PM, Sellam Ismail [SMTP:dastar@ncal.verio.com] wrote:
> On Wed, 3 Mar 1999, James Willing wrote:
>
> > Trivia Question: (Compu-Nerd time - practice for the Nerd Trivia Contest
> > at VCF III!) What movie had a scene with the lead character sitting on a
> > beach with their trusty (?) Apple ][c complete with LCD display panel???
>
> I think this is either a question we came up with for the Nerd Trivia
> Challenge last year or someone already posted this (I know I've seen it
> before). At any rate, it was Roy Scheider in 2010.
>
> What movie featured a group of kids who traveled into space with a ship
> they built controlled by an Apple //c?
>
> (I hope someone knows...I know the movie but not the name :)
>
> Sellam Alternate e-mail: dastar(a)siconic.com
> ------------------------------------------------------------------------------
> Don't rub the lamp if you don't want the genie to come out.
>
> Coming in 1999: Vintage Computer Festival 3.0
> See http://www.vintage.org/vcf for details!
> [Last web site update: 02/15/99]
>
>
EXPLORERS
I'll donate the prize to VCF III ;-)
Steve Robertson - <steverob(a)hotoffice.com>
<I guess we'll have to see what information is available on the net about
<that January 1986 event. I do seem to recall that the flight was about 2
<minutes 10+ seconds underway when the ship hit the fan, so to speak. The
<entire trip into orbit only required about 8.5 minutes, so they were a fai
<piece of the way along.
It was exactly at T+73 seconds and Christa's mother is my next door neighbor
then and now. It was post max-Q transistion at main engine power up. Every
time I see a launch I get a knot at that time. FYI the speed attained at
that point is some 3600mph far from orbital velocity.
FYI: TLC had a special on space flight just that last week and that footage
was part of it. It's a reminder that I didn't need.
Allison
Is anyone out there actually tinkering with building a relay
machine? The other day I found SPDT relays for less than a
buck each in a Digi-Key catalog. Seems to me they were $0.81
each in quantities of 100 or more; maybe $1.06 each for 25.
I know NPDT (N>1) is better, but for less than $1 each, this
seems pretty good.
Cheers,
Bill.
Marvin, e t al...
How about an early breakfast Sat morning somewhere convenient?
- Mike
-----Original Message-----
From: Marvin <marvin(a)rain.org>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, March 03, 1999 12:17 PM
Subject: Re: Dayton Hamfest
>Mike wrote:
>>
>> Hi Barry,
>>
>> I was thinking about attending the computershow in Dayton in a couple of
>> weeks. You say that there is no flea market. Does that mean that
>> (classiccomp) systems aren't sold there??? And can I get a general set
of
>> directions to the Hara..
>>
>> Maybe we can do a lunch between or drink after the festivities
>
>Hi Mike, et al,
>
>Right now, a friend of mine and I have hotel reservations for Thursday
>through Saturday, and my current plans are to leave on Sunday. Who is
>interested in getting together? Saturday during the day is tied up with
ARDF
>activities, and several of us who are trying to build up the US ARDF team
>will be meeting tenatively Friday evening. Right now, I have most of Friday
>planned to visit the flea market, and probably parts of Sunday also.
>
>Dayton is getting closer!
>
Hello, all:
Does anyone have a copy of the Tech Ref manual for the PC/AT that they
can spare (temporarily -- I'll make a copy of it)? Specifically, I'm looking
for a copy of the BIOS listing in the back, for educational purposes.
Thanks!
[ Rich Cini/WUGNET
[ ClubWin!/CW7
[ MCP Windows 95/Windows Networking
[ Collector of "classic" computers
[ http://highgate.comm.sfu.ca/~rcini/classiccmp/
[ http://highgate.comm.sfu.ca/~rcini/pdp11/
<================ reply separator =================>
In a message dated 3/3/99 11:22:33 AM Eastern Standard Time,
george(a)racsys.rt.rain.com writes:
> Weeks of visits to the local Goodwill paid off last night.
>
> I even missed it on the first pass.....
>
> I snagged an Apple ][c LCD panel with attached ][c last night for the
> grand price of $29.99.
>
> This completes my Apple ][ collection!
>
good job! of course, it doesnt beat the LCD i found complete in box previously
used for $3. lol. i've found its really not all that great though. i wouldnt
use it on a regular basis as it is just too dark. all i need is a //c+ and my
apple collection is complete also.
david
I've been pretty quiet this go around... I am however tentatively planning
on spamming the hell out of ccauctions with beannie baby sale
notifications...
Those bastards have ruined this list ;)
- Mike: dogas(a)leading.net
