Re: Is this Dr Frank I've been hearing about?

[Keith Carpenter <carpcon@xxxxxxx>]

Hi Larry,

Thanks for the info.  I assume you're quoting from his book.
To be clear, I was not attacking Dr Frank, only commenting on SLS
itself.  The Atlas sounds like it's worth further reading.


Keith


Larry Ducie wrote:
> Hi Keith,
>  
> <snip>
> It's my understanding that the first system to implement single level
> storage was not the S/38 (AS/400, system i5, ...) but the MULTICS operating
> system from the 60's.
> </snip>
>  
> Dr Frank did not invent the single-level store - which he freely states, but
> he named the S/38 virtual memory storage system after the work done on the
> Atlas computer in Manchester, England in 1961.
>  
> The pioneering paper was published by T. D. Kilburn, B. G. Edwards, M. J.
> Lnighan and F. H. Summer. It was titled "One-level Storage System" IRE
> Transactions on Electronic Computers. The paper was published in April 1962.
>  
> The design was used to make computer programs and data occupying many
> magnetic drums or disks appear to the programmer as a "single-level store".
> Thus, programmers did not need to code for paging-in and paging-out
> different parts of a program (overlays) as it processed. The virtual memory
> management system would allow the programmer to think that there is always
> enough memory, and would perform all the overlay management automatically.
>  
> Of course, it was Dr Frank's implementation of the single-level store,
> together with the 128-bit pointer, page protection, persistent virtual
> memory, and pointer security tags which made the AS/400 soooooooo SLIC. ;-)
>  
> Cheers
>  
> Larry Ducie
>  
>