Re: Memories (was University credentials used by third parties)

[Morrow Long <morrow.long () YALE EDU>]

On Aug 20, 2010, at 5:10 PM, David L. Wasley wrote:
> Anyone recall the META-4 computer?  It had a CPU clock speed dial!  
> As I recall, it was because some hardware I/O devices required code  
> execution to be synchronized with the physical operation of the  
> device.
>
>         David

The University of New Haven still had a Digital Scientific META-4 when  
I entered graduate school there in 1981.

It had other unique features -- a major one was that the Digital  
Scientific META-4 was's instruction set was 'microprogrammed', could  
easy be modified and the computer could emulate another computer's  
instruction set (e.g. the 'metaphor').

Usually the META-4 was used to emulate the IBM 1130 instruction set  
but you could actually create your own machine language instructions  
as the opcodes were created by blackening portions of glass slides/ 
plates inserted into the computer.

H. Morrow Long, CISSP, CISM, CEH
University Information Security Officer
Yale University, ITS

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On Aug 20, 2010, at 5:10 PM, David L. Wasley wrote:

> Just like radio stations shutting down at midnight or 1AM ... ;-)
>
> Anyone recall the META-4 computer?  It had a CPU clock speed dial!  
> As I recall, it was because some hardware I/O devices required code  
> execution to be synchronized with the physical operation of the  
> device.
>
>         David
>
> -----
> At 9:04 PM +0000 on 8/20/10, Kieper, David wrote:
>
> > > David L. Wasley wrote:
> > > As to radio interference, I recall someone
> > > writing a program for a Data General Nova that
> > > would "play music" on a nearby radio by executing
> > > different algorithms to effect different tones.
> > > "Music" was stretching it a bit; amusing would be
> > > more accurate.
> >
> > As for music, Xerox Sigma's running CP-V OS played the star  
> > spangled banner over their alarm speaker when you did a shutdown on  
> > them. Needless to say, there was no power off feature as part of  
> > shutdown...
> >
> > David

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