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Digital Equipment Corporation PDP-8

#pdp-8 #straight-8 #digital equipment corporation #im trying to see if photos alone will get me farther than my long winded text posts #vcfex #commodorez goes to vcfex #mid atlantic retro computing hobbyists

I’ve been putting off posting about this...

At VCFE 9.1, I really wanted to get one of Lee Hart’s 1802 Membership Cards. However, I couldn’t afford one at the time and had to wait. This year at VCFEX, I was able to buy one. In fact, I made Herb Johnson’s first sale of the weekend.

Seen here is the 1802 Membership Card Rev. G with the IDIOT Monitor ROM add-on to make interaction over serial port easy (but I still have to figure out how I’m using it incorrectly. Thus far, I’ve been able to enter in a few simple programs using the front panel toggle switches, but I really wish I could see what address I was at. It would be very nice to have an address line, but I’ll survive.

This kit is a direct descendant of the COSMAC "ELF", which was a homebrew computer design featured in the August 1976 issue of Popular Electronics. This was a big deal because an Altair 8800 was an expensive prospect for most computer hobbyists at the time -- about $2000 for the bare-bones kit (adjusted for inflation) and far more if you wanted to do anything useful with it. But an ELF, based on the inexpensive RCA 1802 processor cost only $300 (adjusted for inflation).

This is my first machine with proper front-panel toggle switches and das blinkenlights. I find it rather fun!

#cosmac #cosmac elf #rca 1802 #vcfex #commodorez goes to vcfex #blinkenlights #lee hart #cosmac elf membership card #1802 #cosmac 1802

I celebrated this Commodore PET 2001′s 30th birthday back in 2007 at VCF East 4.0. It’s nice to see it on display in a place of prestige within the MARCH museum.

#commodorez goes to vcfex #vcfex #commodore #pet 2001 #mid atlantic retro computing hobbyists

(via https://www.youtube.com/watch?v=sidooQfvH4I)

And now for your enjoyment, the PDP-8 “Straight-8″ power-on ceremony at Vintage Computer Festival East X from last month.

Can you spot yours-truely in the crowd? I’m wearing a black derby with a red feather cluster.

#vcfex #commodorez goes to vcfex #pdp-8 #digital equipment corporation #straight-8 #mid atlantic retro computing hobbyists

I’d play the “name that computer” game with what’s picture here, but most of these have their name’s up front and easy to read.

Alot of these hail from an early era of non-standard architecture.

#commodorez goes to vcfex #vcfex #cromemco #z-2h #xitan #sol terminal computer #zenith data systems #northstar horizon #dynabyte db8/1 #swtpc 6800 #swtpc ct-64 #mid atlantic retro computing hobbyists

So many old computers! Can you name them all?

#I want to see how this goes #commodorez goes to vcfex #vcfex #mid atlantic retro computing hobbyists

(From left to right): An IMSAI 8080 complete with dual 8″ floppy drives, a Lear Siegler ADM-3A terminal, and an Altair 8800. Blinkenlights ahoy!

#commodorez goes to vcfex #vcfex #altair 8800 #lear siegler adm-3a #adm-3a #imsai 8080 #on top of the Altair is Bill Gates' open letter about software distribution #the one where he was all pissed about his version of BASIC being pirated

A very authentic TV Typewriter build, complete with the fake wood grain contact paper made out of a banker’s box sits next to an ASR-33 teletype in the MARCH museum.

#tv typewriter #asr-33 #teletype #vcfex #commodorez goes to vcfex #mid atlantic retro computing hobbyists #ed laplante #that tv typewriter was made in 1975 and was hooked into an altair 8800

#vcfex

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