January 2018 - vcf-midatlantic

Closed tomorrow
by Evan Koblentz 27 Jan '18

27 Jan '18

Our museum is closed tomorrow. Five people today was awesome, but unfortunately we don't have anyone for tomorrow.

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OT: Temporary Position: Open-Source DBA role in Somerville NJ
by Jeffrey Brace 27 Jan '18

27 Jan '18

Contact me if you are interested or know anyone that is. Got an e-mail for someone looking for: *Summary:* Database Administrator supporting all aspects of database administration for Open Source DBMS platforms deployed to support their Automation Initiatives (RPA). Will be expected to maintain a strong level of IT industry knowledge and industry trends and how they impact the environment. Implement relevant best practices on Open Source DBA operations. This DBA must understand the Open Source DBMS technologies such as Oracle’s MYSQL, MongoDB, PostgreSQL and Maria DB. A successful candidate will support business partners when called upon in the role of subject matter expert. *Knowledge, Skills and Competencies:* - Five years (or equivalent knowledge) of hands on technical database/DBA support - Oracle’s MySQL, MongoDB, or PostgreSQL knowledge preferred. - Beneficial, but not required: S3 Emulator, Solr, Nexus, RIAK - Ability to work independently and on a team with colleagues across the globe - Excellent written and verbal communication skills

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Updated group calendar page
by Evan Koblentz 26 Jan '18

26 Jan '18

I updated our group calendar page: http://vcfed.org/wp/groups/vcf-mid-atlantic/vcf-mid-atlantic-calendar/ ..... did I miss anything?

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Terminator HUD from year 2029 has 6502 code
by Glenn Roberts 25 Jan '18

25 Jan '18

perhaps old news to this group (though I hadn't seen it discussed here...) but anyway, For Your Amusement: I was recently re-watching the first Terminator movie about a Cyborg from 2029 that comes back to 1984 (a plot I'm sure you're all familiar with...). The "data" that flashes up on the Terminator's Head-Up Display is actually Apple 6502 code out of a 1980's Nibble magazine! how's that for "futuristic"?! i literally laughed out loud when i saw it. of course I soon discovered that lots of folks have analyzed this :-) .. here's an old discussion thread ... http://www.pagetable.com/?p=64 pretty funny... - Glenn

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Vintage-looking terminal emulator
by Richard Cini 24 Jan '18

24 Jan '18

All — I have plenty of terminal emulator programs (HyperTerm, PuTty, etc.) and different screen fonts that simulate an old terminal (like the VT220 font) but does anyone know of or have used a cheap/free terminal emulator which actually looks like an old terminal screen (with the bezel and such)? I’m going to do some research today but if there are any group favorites I’d like to check them out. Thanks!Rich Get Outlook for iOS

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OT / Looking for modems
by Herb Johnson 24 Jan '18

24 Jan '18

> Anyone have Hayes 2400 Baud Smartmodem > floating around? The two specific Hays models I am interested in are > 217AA and 07-00056. Why only 2400 baud modems? Don't faster modems fall back to 2400? Herb -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net

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HP 87XM and 82901M
by Mike Loewen 23 Jan '18

23 Jan '18

I recently picked up a 82901M dual-floppy drive to go with my HP 87XM. It took a little cleaning and lube, but it's up and running. I used ImageDisk to create a DEMO DISK and ran a few of the demo programs: http://q7.neurotica.com/Oldtech/HP/HP87XM/ Software for the 80-series machines is available in Teledisk format on the HP Computer Museum site: http://www.hpmuseum.net/collection_software.php Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Re: [vcf-midatlantic] eBay alert -- PETs nearby
by Jeffrey Brace 23 Jan '18

23 Jan '18

> > was one, I would consider making the long trip to go fetch them and then > find homes for duplicates. Besides, I have no idea where I would put them > all... > -Alexander 'Z' Pierson > What?!? Then you are not a true hoarder. A *true* hoarder would *find* a place for them ;) If you cannot, then you will be shunned: https://www.youtube.com/watch?v=5c2etjMl3WM

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Craigslist Free Demon Attack for Commodore VIC20
by Christian Liendo 23 Jan '18

23 Jan '18

https://newjersey.craigslist.org/zip/d/free-demon-attack-for/6467678817.html It's in NJ. so I figured someone would want it

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dropping a few bits (was modem error correction)
by Jeffrey Jonas 22 Jan '18

22 Jan '18

re: John Heritage Subject: Modem Error Correction - when/what baud/bps? > My questions are -- is this a correct recollection? > and when did error correction become pretty standard ... My memory may have dropped a few bits but I remember that error correction was first in the protocol the programs implemented, not the modem. Early modems had very little signal processing. The first ones didn't even auto-dial! "smart modems" added a microcontroller mostly for autodialing. That's why xmodem, uucp and such were developed. A checksum or CRC (cyclic redundency check) was added to each block. Any error caused the entire block to be sent again. Once micro-controllers were cheap enough, error correcting was moved into the modem hardware (so long as both modems supported the same "standard"). There were several totally incompatible families of modems - async (home users, bbs) - synchronous (mainframe links) - PEP (Telebit trailblazers, favored by Unix/uucp) > i.e. An early 300 or 1200 baud "client and BBS" (or server) > would typically send the 8 bits for an ASCII byte > and an additional 2 bits -- a start and stop bit ... Once modems gained DSP (digital signal processors), the data format you "fed it" externally bore little relationship to the symbols used among the modems. External modems usually use asynchronous serial via RS232 to a UART. Internal modems are parallel, so there's no stop/start bits. Early modems were FSK: frequency shift keying. One tone for a '1' or mark, another tone for '0' or space (thus the museum's all discrete-part acoustic-coupled modem in the wood box). Faster modems use frequency and phase shifting together. See: https://en.wikipedia.org/wiki/Phase-shift_keying https://en.wikipedia.org/wiki/Constellation_diagram enough? -- Jeff Jonas

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