On Thu, 30 Dec 2010 04:51:00 -0600, Mike Schwab wrote:
>
>The mainframe itself never has had a built in display and required a
>terminal while a person is entering data or reviewing status or
>output.

Of course it has.  The mainframe has always come with a console. 
Some have been display consoles and others have been printer consoles.  
The console today is the HMC, and it is of limited usefulness as a 
console for the operating system.  This has not always been the case.

-- 
Tom Marchant

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