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Re: What is the oldest computer that could be used today for real work? [message #410869 is a reply to message #410857] Thu, 09 September 2021 21:35 Go to previous messageGo to previous message
John Levine is currently offline  John Levine
Messages: 1405
Registered: December 2011
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According to Thomas Koenig <tkoenig@netcologne.de>:
>> A brand new Z can emulate the 370/145. So can my Raspberry Pi if I
>> don't expect any performance.
>
> Surely, a higher performance than the original? ...

CPU speed, sure, but the point of a mainframe is that it has high performance
peripherals. A /145 could have up to four channels and could attach several
dozen disk drives.

These days one SSD holds more data than two dozen 2314 disks, but I wouldn't
think a Pi has particularly high I/O bandwidth.

--
Regards,
John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly
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