EEVblog

1979, a screaming 613KHz clock, killer graphics, and it's a Hewlett Packard, it doesn't get much better than this!
Inside the classic HP85 Scientific / Engineering Professional Personal Computer.
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Using it: • EEVblog #904 - Hewlett...
Repair: • EEVblog #905 - REPAIR:...
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[@The8BitGuy]

One thing that definitely stands out compared to home computers of the era is that this machine was probably expensive to produce, but that's to be expected from H.P. of the time. This thing was also more portable than just about anything else made in 1980.

[@hikaru-live]

True artist signs their work. This is a piece of industrial art and the signatures are from the artists that created it.

[@DarkFire515]

My dad was an electronics design engineer back in the early 80's and I remember him bringing one of these (or similar, can't remember now) home for me to play with. I'm sure dad would have loved to have watched your tear downs of old school electronics. Had hours of fun with one of these making it display basic graphs on the screen. The build quality is incredibly good, they really don't make them like this any more. Great video, a real trip down memory lane!

[@Willster451]

Your tear downs are so much better Thankyou

[@Indiskret1]

Love the teardowns of vintage stuff! Incredible condition on this one too.

[@alexgochenour8740]

What a beautifully curated, well-researched video.

[@ForViewingOnly]

Dave, thanks as always for giving respect to vintage computers! I've got an hour awesome geekery to look forward to when I get home tonight... Can't wait!

[@LasseHuhtala]

That is the cleanest old machine i've ever seen. Immaculate!

[@AiOinc1]

CuriousMarc has more information on the HP85 if you're interested, including plenty of repairs.

[@richfiles]

You need to get your hands on an HP 9825. The CPU in that thing is a beast. 16 bit, 10 MHz, in 1976! It was built on a ceramic module, with multiple dies, and connected to the board by zebra strips! What's more... Zebra strips that WORK!!! Mine STILL works to this day! It also had hinged PC boards that could fold out while the machine was live!

[@fatdude2468]

6:49

[@pepe6666]

awesome work dave.

[@FFcossag]

It took less than half a human lifetime to get from that, to computers that can render this video in minutes.

[@DrakkarCalethiel]

Just checked my subscriptions... only saw Vintage Computer Teardown... I need to watch this before all other videos. Love the old style PCs!

[@kimlebrocqu692]

Loved this teardown and is designed with the engineer in mind. Great vlog Dave 😁😁😁Kim😁😁😁

[@wolfrobots118]

I love your video style. Packed full of information....thanks for making watch worthy videos.

[@TheCRDMiller]

This is a gorgeous system, thanks.

[@TechBench]

Classic device. My father had one of these at university to sort a list of student names, calculate the class average and sum the term scores for each student. Once the data was entered, it took the HP85 about 7 hours to complete the process for about 300 students. It took so long because it could not store all 300 records in RAM, so the sorting process had to be partially storage (tape) based. Excellent video, thanks!

[@user-ok1tt9dx5r]

Nice video about this awesome vintage machine!

[@thekamalwhf]

more teardowns!!! awesome video