IBM PC Oddities

Posted by  | Thursday, August 11, 2011

IBM 5161 Expansion Unit

The PC didn’t ship with an internal hard drive. But IBM did offer an expansion box (seen here to the right of the PC) that provided room for two hard disks and seven extra internal ISA slots.

Extra slots were a precious commodity: the five on the PC tended to fill up quickly in an era when nearly every I/O port required its own peripheral card. For reasons of girth and expense (a 10MB hard drive cost as much as a new car), these expansion units rarely graced the desks of PC users. That makes them rare today.

(Photo: IBM)

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3 Comments For This Post

  1. Stilgar Says:

    What about IBM's word processing software, Display Write 1.0? It's hard to find any good information on this product on the internet. I even remember the name of the executable "dw1" 🙂

  2. Zomg Says:

    What's bizzare and dystopian about teaching people to read? I say it's utopian. Now if they subliminally taught them to only buy IBM or become chimp plant lackeys… that would be dystopian.

  3. Pheasant Under Glass Says:

    I think the author was just showing how limited his/her vocabulary is. …ah, if only they had access to one of those evil IBM enslavement machines during their youth.