RE: AS/400

I plead guilty to knowing about single- and dual-density 5440 drives...the
CE removed the screw holding the stopper in place; then you had a whole 5
megabytes.

-----Original Message-----
From: owner-midrange-l@midrange.com [mailto:owner-midrange-l@midrange.com]On
Behalf Of ken shields
Sent: Monday, July 30, 2001 8:50 PM
To: MIDRANGE-L@midrange.com
Subject: Re: AS/400

Neil
        You and I are probably the only people that actually worked that
equipment.
        I remember placing rpg code, inside a compiler deck of cards.

Neil Palmer wrote:
>
> Rob,
>
> That was a common trick with card machines.  I believe the 2560 card
> readers (S/360 Mod 20 I worked on back in early 70's - and possible even
> the 5424 card readers on the S/3) had a hidden switch under the covers
> that doubled their speed (and greatly increased the cost and monthly
> maintenance charge).  Once you "found" this switch you could flip it and
> run the thing at the higher speed.  If you needed maintenance, or if the
> CE was due for Preventive Maintenance (remember that !  ;-)  ) you would
> flip the switch back.  When he left, you'd change it back again.
>
> Someone told me an early Burroughs computer  (1800 ???) had a switch you
> could flip to make it run faster too.
>
> ...Neil
>
> Rob Dixon <rob.dixon@erros.co.uk>
> Sent by: owner-midrange-l@midrange.com
> 2001/07/30 17:45
> Please respond to MIDRANGE-L
>
>
>         To:     MIDRANGE-L@midrange.com
>         cc:
>         Subject:        Re: AS/400
>
> < big snips >
>
> In the early 1960's, IBM sold 421 and 444 tabulators (punched card based).
>  I was
> always told that the cheaper and slower  444 was essentially a 421 with a
> governor.  YOu can buy a multi-user software package today and pay a per
> user based
> price.  But the functionality that is delivered is exactly the same,
> whether it is
> used by 5 or 5,000 users.  Both of these could be called forms of tax. But
> user
> based pricing allows a small company to purchase a package for a much
> smaller price
> than a large company and may be less than cost.
>
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--
Best Regards
Ken Shields
Home phone: 905 404-2062
Bus  phone  905 725-1144 (326)
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