[GeoStL] Re: [geocache] Re: Branson Caching
- From: "Steve Bromley" <bromley@xxxxxxx>
- To: geocaching@xxxxxxxxxxxxx
- Date: Fri, 15 Jun 2007 10:42:50 -0500
-
I went to Control Data way back when.... What PT class were
you in? I was in both PT-2 and PT-5 (back in 1969-1970).
----- Original Message -----
From: Mike Lusicic <lusicic@xxxxxxxxxxxxx>
To: geocaching@xxxxxxxxxxxxx
Subject: [GeoStL] Re: [geocache] Re: Branson Caching
Date: Fri, 15 Jun 2007 10:31:35 -0500
>-
>
>I think I used that machine when I went to Control Data
>Institute. They shared it with SLU.
>
>Steve Bromley wrote:
> -
>Nope, but close. It was a CDC3300 (Old Control Data
>machine with 32K and a Floating Point Unit). It was in the
>basment of the Pink Building on the SLU campus and wouldn't
>fit into my current house. It ran off of 220 3-Phase
>power. ----- Original Message -----
>From: "Robert Oelschlaeger" <roelschlaeger@xxxxxxxxx>
>To: geocaching@xxxxxxxxxxxxx
>Subject: [GeoStL] Re: [geocache] Re: Branson Caching
>Date: Fri, 15 Jun 2007 07:22:51 -0500
>
> .. must have been a PDP-11; hardly anyone else used
>octal... Bob (aka roelsch)
>On 6/14/07, Steve Bromley <bromley@xxxxxxx> wrote:
>
> I just absolutely love geek talk. Brings my back to
>my days of punch cards, wiring boards, and using Octal.
>Lets code it in machine language....
>Steve Bromley
>bromley@xxxxxxx
> ------------------------------
>*From:* geocaching-bounce@xxxxxxxxxxxxx [mailto:
>geocaching-bounce@xxxxxxxxxxxxx] *On Behalf Of *Robert
>Oelschlaeger *Sent:* 14 June 2007 Thursday 9:38 PM
>*To:* geocaching@xxxxxxxxxxxxx
>*Subject:* [geocache] [GeoStL] Re: Branson Caching
>For the entire file, or for each record of say 64 bytes,
>like a Motorola S-record file?
>8-bit, 12-bit 16-bit or 32-bit? Which polynomial?
>CCITT-16? CCITT-32? preset to all 1's first? complemented
>at the end?
>Single-error detecting? Single-error correcting,
>double-error detecting Hamming code? That would add three
>bits per byte, I'd guess.
>Adding just a single parity bit to each character add
>about 10%, so we would have 4.3860 years.
>Adding the file checksum would be negligibly different.
>Adding a 16-bit CRC per line of 64 bytes adds 3.125%
>Grand total is about 4.5 years.
>Any other requests?
>Bob (aka roelsch)
>On 6/14/07, Enormous Richard <_rnx_@xxxxxxx> wrote:
>
> -
>very nice 8^)
> what if i wanted to add a redundancy checksum
>------ Original Message ------
>*Received: *Thu, 14 Jun 2007 10:16:59 PM EDT
>*From: *"Robert Oelschlaeger" <roelschlaeger@xxxxxxxxx>
>*To: *geocaching@xxxxxxxxxxxxx
>*Subject: *[GeoStL] Re: Branson Caching
>3.9873 years if you're talking 1M = 1048576 bytes :-)
>Bob (aka roelsch)
>On 6/14/07, Robert Oelschlaeger <
>
> roelschlaeger@xxxxxxxxx > wrote:
>I get 3.8026 years, figuring four seconds per bit, 10
>bits (start/stop/8 data -- this is serial
>asynchronous, after all) per byte, and 365.25 days
>per year:
>octave:1> rate=0.25
>rate = 0.25000
>octave:2> bytes=3e6
>bytes = 3000000
>octave:3> bits=10*bytes
>bits = 30000000
>octave:4> seconds = bits/rate
>seconds = 120000000
>octave:5> hours = seconds/3600
>hours = 3.3333e+04
>octave:6> days = hours/24
>days = 1388.9
>octave:7> years = days/365.25
>years = 3.8026
>octave:8>
>On 6/14/07, HoosierDaddy <_rnx_@xxxxxxx > wrote:
>
> -
>i wonder how long it would take to send 3Mb via
>smoke signals
>------ Original Message ------
>*Received: *Thu, 14 Jun 2007 08:06:39 PM EDT
>*From: *"Robert Oelschlaeger"
><roelschlaeger@xxxxxxxxx> *To:
>*geocaching@xxxxxxxxxxxxx *Subject: *[GeoStL] Re:
>Branson Caching
>Must be all those folks trying to escape the chain
>of being shackled to their high speed DSL :-)
>On 6/14/07, Tim and Pam <
>
> timpam2mocachers@xxxxxxxxxxxxx > wrote:
> I wish we could leave our house unlocked.
>Washington is starting to grow like St.Charles
>did 20 years ago. It is scary to look around at
>the changes made in just the last 6 months L
> Tim
> www.tueltzen.smugmug.com
> ------------------------------
>*From:* geocaching-bounce@xxxxxxxxxxxxx
>[mailto:geocaching-bounce@xxxxxxxxxxxxx] *On
>Behalf Of *HoosierDaddy *Sent:* Thursday, June 14
>, 2007 6:38 PM *To:* geocaching@xxxxxxxxxxxxx
>*Subject:* [GeoStL] Re: Branson Caching
> we all make choices that have consequences. just
>keep in mind all the privlidges that living in
>Washington provides to keep your minds off the
>
> other troubles. i bet you can leave you front door
>unlocked
>
> without the fear of a crackhead walking
>through it and stealing your melba toast. No DSL is a
>small price to pay for that kind of peace of mind.
>eocaching Missouri Caches Scheduled to be
>Archived http://tinyurl.com/87cqw
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>Steve
>
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</blockquote></BODY>
Steve
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