Скачать с ютуб What is this rare multi-user UNIX workstation? (Plexus P/20) в хорошем качестве

What is this rare multi-user UNIX workstation? (Plexus P/20)

What we have on the bench is a Plexus P/20 dual processor multi-user UNIX computer from 1985. This was likely designed for office user and support 8 concurrent users in this configuration, with up to 16 possible with the use of an extra I/O processor card. This machine doesn't seem to be documented anywhere other than a simple brochure (link below) so let's see if we can unravel some of the mysteries of this machine. Part 1: This part Part 2:    • First power up of the Plexus P/20 dua...   Part 3:    • Booting UNIX on the Plexus P/20 didn'...   Part 4:    • We made some unbelievable discoveries...   -- Links My Github Repo (with ROM dumps and images) https://github.com/misterblack1/plexu... Plexus P/20 Brochure: http://www.bitsavers.org/pdf/plexus/b... Plexus Unix: http://www.bitsavers.org/pdf/plexus/b... MFM emulator: https://www.pdp8online.com/mfm/mfm_ol... Fujitsu Hard Drive Brochure: https://archive.org/details/bitsavers... Omti 5200 Manual: https://oldcomputers.dyndns.org/publi... Adrian's Digital Basement Merch store: https://my-store-c82bd2-2.creator-spr... Adrian's Digital Basement ][ (Second Channel)    / @adriansdigitalbasement2   Support the channel on Patreon:   / adriansdigitalbasement   My GitHub repository: https://github.com/misterblack1?tab=r... -- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.16... O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digi... Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000... TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MI... EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DS... Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-... Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-... RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (order five) https://www.ebay.com/itm/1-2-5-10PCS-... Heat Sinks: https://www.aliexpress.com/item/32537... Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Instructional videos My video on damage-free chip removal:    • How to remove chips without damaging ...   --- Music Intro music and other tracks by: Nathan Divino @itsnathandivino