Legendary Windows Pinball developer rescues 200lb magnetic disc drive from the 1980s – requires a scissor lift to move it, only has 622 MB of storage

Dave Plummer's DEC RA82 disc drive connected to a DEC PDP-11/73
(Image credit: Dave Plummer)

Dave Plummer, the well-known former Microsoft engineer with a hand in adding Zip folders, Task Manager, and even Pinball to Windows, is on a mission to save one ridiculously large bit of storage – not in capacity by modern standards, but certainly in physical size. In a recent video on his YouTube channel (via PC Gamer), Plummer explained that he wanted to use a DEC RA82 disc drive, weighing nearly 200 lb and containing just 622 MB of storage, to run Unix on his DEC PDP-11/73, a 16-bit minicomputer from 1983.

Calling the project “gloriously anachronistic,” Plummer explains in his “SD cards are lame!” video that while he’d been running the PDP-11/73 with more modern solutions, including both real and emulated SCSI drives, these weren’t “satisfying” to use. Instead, Plummer was looking for “period correct storage, with its own beautiful set of limitations, rituals and noises.”

Insert the DEC RA82. Fitted with several 14-inch platters inside a large metal enclosure, this 1980s-era drive is so bulky that Plummer had to buy a hydraulic scissor lift just to raise it into position, requiring both him and his son to “birth it like an ocean liner” inside their home rack.

With a proprietary DEC connector and 15ft of “coaxial weirdness” cabling to hand, Plummer successfully hooked up the RA82 to his PDP-11/73. After a stressful first run attempt, the drive required a low-level format, working through the drive to prepare for future data. With a new partition table and file systems in place, it was ready to install Unix.

This might be a decades-old bit of kit, but Plummer has plenty of praise to share. He explains that DEC did “three big things right” with the RA82. The drive is “smart” and able to heal itself around problems, with a “brain” that handles diagnostics and fault isolation. The end user doesn’t have to worry about the physical elements, like platter speeds, with the drive’s controller handling it all for you.

Directly addressing the “neat but impractical” criticisms that he expects from commentators, Plummer says that it was worth using these two DEC devices together, explaining that it’s a faithful approach, it’s educational, and it’s beautiful. You can’t argue with that – the last minute of the video showcases the glorious noises as the drive kicks into life, even if it isn't entirely straightforward.

SD cards are lame, indeed. Modern drives might be simple and easy to use, but you can’t ignore the beauty of hearing a classic drive like this still working, somehow, in the 21st century.

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Ben Stockton
Deals Writer

Ben Stockton is a deals writer at Tom’s Hardware. He's been writing about technology since 2018, with bylines at PCGamesN, How-To Geek, and Tom’s Guide, among others. When he’s not hunting down the best bargains, he’s busy tinkering with his homelab or watching old Star Trek episodes.

  • einheriar
    I assume he puts it in his garage?
    Reply
  • russell_john
    I remember my first hard drive a 40 MB monster that could boot the system without inserting a 5 1/4" floppy disc every time
    Reply
  • Megotu
    One does not “birth” an ocean liner. One “berths” it. It is not being created, it is being put into its place of comfort or safety, ie, its berth.
    Reply
  • GhostGuitars
    Y'know what? I just realized I MISS the whirring drone music of the 3.5" floppy and the clicking and whine of the old HDDs from the late 80s and the 90s. Nostalgia...
    Reply
  • willemv1
    I miss the smell from the power supplies and the CRTs.
    Reply
  • dimebaggins
    I remember getting dual floppies, it made copying disks so much faster. It still took like 5 min to copy a 1.44 meg diskette, but at least i didn't have to keep changing disks back and forth from read to write.
    Reply
  • danielkr
    I think you meant "berth" not "birth"... The idea of a man and son birthing a 200LB disk drive much less an ocean liner can't be unthought unfortunately but equating an ocean liner berthing to racking a super heavy disk drive really hammers home the point - it's awkwardly big!
    Reply
  • danielkr
    GhostGuitars said:
    Y'know what? I just realized I MISS the whirring drone music of the 3.5" floppy and the clicking and whine of the old HDDs from the late 80s and the 90s. Nostalgia...
    The "singing" of the voice coil actuator, and the repetitive "sh sh sh sh sh" of the floppy in its plastic sleeve
    Reply