Re: [SystemSafety] Software reliability

From: E. Douglas Jensen < >
Date: Fri, 13 Mar 2015 12:01:39 +0000

The B-52 was born in 1952 and is expected to remain in service into the 2040's. It has undergone extensive upgrades including a major one in 2013 that involved a lot of electronics and software, but it wouldn't surprise me if there are still bits of 1950's software remaining in the 78 B-52H aircraft still operational.


E. Douglas Jensen
jensen_at_xxxxxx Home voice 508-653-5653, Cell phone voice: 508-728-0809 Facebook LinkedIn<>

From: systemsafety-bounces_at_xxxxxx Sent: Friday, March 13, 2015 7:40 AM
To: systemsafety_at_xxxxxx Subject: Re: [SystemSafety] Software reliability

How about the flight data processing software, NAS? Parts of it date from the 1960s, I think.


On 13/03/2015 11:09, Matthew Squair wrote: An alternative question would be what's the oldest piece of software we know of that's still running?

Open question to the list

Matthew Squair

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systemsafety_at_xxxxxx Received on Fri Mar 13 2015 - 13:01:50 CET

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