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DEC LAB-8/e (PDP-8/e) playing music

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Uploaded by on Apr 1, 2008

This is a video of my 1971 DEC LAB-8/e minicomputer playing music. In this video it is revealed where the music comes from:
The music is generated by generating noise induced into an AM radio receiver near the CPU.

The software is Richard Wilson's "Music Compiler" written back in 1975. It runs under OS/8, one of Digital's operating systems for the PDP-8 series of computers.

Visit http://pdp8.hachti.de?lab8e

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Uploader Comments (iraeus)

  • Why's the printer stopping at 1:33?

  • @luzon83 The break comes from OS/8 (the machine's operation system) loading and interpreting the next directory data block from the RK05 disk.

  • A tape drive, two hard drives, a floppy disk drive, a CRT monitor and a lab I/O station...

  • Oh...and is that a chain printer next to everything else?

  • @douro20 It's a drum printer!

  • @douro20 There is no floppy disk!

Top Comments

  • he blew a fuse in the beginning ! :)

  • A truely beautyfull machine you've got there. I'm hoping to get my hands on a pdp/8 lab soon, it's from February 1972 and is in storage at a local telecom center where i've worked.

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All Comments (79)

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  • Interesting. I used to use a radio to determine if a program had crashed by listening to the pitches. If it generated a single pitch with no changes, the program was stuck in an endless loop. If the sound changed, you knew it was necessary to continue waiting.

  • Truly awesome video!

  • @teedot, same here! 

  • It's a great machine, but the question is...

    can it run Crysis?

  • you know its hardcore when you blow a fuse trying to turn it on.

  • Wow. I haven't seen that printer for decades. Watching it in operation, I can actually remember the distinctive smell of that machine ...

  • Amazing, and this is coming from a present-day programmer.

    Unfortunately being only 27, I never had a chance to work with any of this old equipment. Very very cool!

  • Did that index say Maple [Leaf Ragtime]?

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