"Short Wave Sportfishing" wrote in message
...
On Tue, 4 Dec 2007 08:29:22 -0500, "Eisboch" wrote:

http://www.neatorama.com/images/2006...puter-1956.jpg

In September 1956 IBM launched the 305 RAMAC, the first computer with a
hard
disk drive(HDD). The HDD weighed over a ton and stored 5MB of data.

That's not a typo ..... 5MB of data.

If I remember correctly, the ones that DEC and DG built used head
motors that weighed 160 pounds and were made out of cast aluminum.

Damned things were bigger than washing macines.

Motors were not that heavy. But the voice coil magnets were about 15
pounds. Still have a couple of them stuck to the side of the tool chest.