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5mb disk drive - 1956

 
 
- Bobb -
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Paul Drahn
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      01-02-2012
On 1/2/2012 5:50 AM, - Bobb - wrote:
> http://www.retronaut.co/2011/12/5mb-...sk-drive-1956/
>
>

Actually, it was a "drum drive". No actual disks.
Paul
 
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meagain
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      01-03-2012
Paul Drahn wrote:
> On 1/2/2012 5:50 AM, - Bobb - wrote:
>> http://www.retronaut.co/2011/12/5mb-...sk-drive-1956/
>>
>>

> Actually, it was a "drum drive". No actual disks.
> Paul


One of the first commercial drum drives had two HUGE
"FasTran" (?) disks about four feet long and a foot in diameter!

 
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Paul Drahn
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      01-03-2012
On 1/2/2012 4:17 PM, meagain wrote:
> Paul Drahn wrote:
>> On 1/2/2012 5:50 AM, - Bobb - wrote:
>>> http://www.retronaut.co/2011/12/5mb-...sk-drive-1956/
>>>
>>>

>> Actually, it was a "drum drive". No actual disks.
>> Paul

>
> One of the first commercial drum drives had two HUGE
> "FasTran" (?) disks about four feet long and a foot in diameter!
>

when I first got involved with the Burroughs medium system hardware,
about 1976-77, they used head-per-track drum memory. There was no
seek-time, but was sure slow. Later we also got a second, faster
head-per-track drum, but it had, I think, 16 heads positioned around
each track. That was as fast as the ram memory access.

Paul
 
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