Author Topic: 5MB hard drive  (Read 468 times)

Neil Waldhauer

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5MB hard drive
« on: August 07, 2017, 07:10:15 pm »
1956 photo


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Fahrvenugen

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Re: 5MB hard drive
« Reply #1 on: August 10, 2017, 06:22:53 am »
But the real question is, will that drive in the picture work with OS/2?

Ian Manners

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Re: 5MB hard drive
« Reply #2 on: August 10, 2017, 06:37:49 am »
Quote
But the real question is, will that drive in the picture work with OS/2?

Probably not but I know my old Seagate ST-506 full height 5MB  harddisk's will on an old 386dx.
A lot more manageable as well :)

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Ian B Manners

Doug Bissett

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Re: 5MB hard drive
« Reply #3 on: August 10, 2017, 06:43:35 am »
It is probably this: https://en.wikipedia.org/wiki/IBM_305_RAMAC, or a close relative.

Sure it would work with OS/2, but there is no driver.  ;D

Andreas Kohl

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Re: 5MB hard drive
« Reply #4 on: August 10, 2017, 04:35:41 pm »
It is probably this: https://en.wikipedia.org/wiki/IBM_305_RAMAC, or a close relative.
At the most only a small part of it

Doug Bissett

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Re: 5MB hard drive
« Reply #5 on: August 10, 2017, 05:23:23 pm »
Quote
At the most only a small part of it

There are TWO of those disks, in the foreground of the photo. The processor is behind them.

When I first started working for IBM, one of my accounts had one of those things. I didn't get to touch it, but it was interesting to watch the single head move between platters, and turn over to read the bottom side (the covers were glass, so you could see inside). Seek time was a significant part of hardware overhead. I did get to help the guy, who maintained that system, look for tubes (valves) that were glowing blue.  :)

guzzi

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Re: 5MB hard drive
« Reply #6 on: August 13, 2017, 12:12:43 am »
My father used to work with stuff like that at Heineken. as a kid I went with him to work a few times. Very impressive. Rows of girls making punch cards to feed the mainframe as well-