Talk:Legacy system
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thank you very much this search term "Legacy system" was exactly what I was looking for.
BUT:
Actually I need (now as I understand what it is) the German word or German definition or entry. Direct translation to German makes no sense since it is a specific professional definition.
Because I was missing it: I suggest for every wikipedia entry a link to the same entry in other languages (indicating if there is an entry and/ or suggesting to write an translation of it in their own language)
Only specialists know the specific definitions in their field of profession.
regards Erwin Munich, Germany.
awsome explanataion
Contents |
[edit] Availability versus Reliability
Re: The phrase, "Extremely high AVAILABILITY." Should this not read, "Extremely high RELIABILITY?"
- No, legacy systems aren't particularly reliable; components fail in them all the time. But if we're speaking of mainframe computers, they often contain massive amounts of redundancy so even in the face of a hard failure of some component or other, the system as a whole continues to be "available" for use. For example, they often contain N+1 (or better) power supplies so that one power supply can totally fail and the system keeps processing using the other "N" supplies. Within the CPU, the latest Z/OS processor chips contain two cores that operate in lock-step, executing the exact same instruction stream; additional logic compares the results between the two processors. If a mismatch is detected, the dilemma is kicked out to a service processor that decides which core got it right and resumes execution as if nothing had gone wrong. If a core continues to fail, the service processor masks it out and operation continues on just the one core. A clear failure has occurred and a service tech must eventually fix the system, but meanwhile, it's still fully available for use.
- Atlant 00:20, 28 March 2006 (UTC)
[edit] Legacy system
One of the references points to a legacy system failing, instead of a new system failing. It should be replaced.
Yuhong Bao
[edit] Visual Basic References
Does anyone think that the references in the article to Visual Basic seem a little biased and bitter? I think VB has had it's name bashed by "real" programmers for years, but I am not sure that belongs in wiki. Just IMO.
Mfergason 21:28, 21 December 2006 (UTC)
- Yes, bashing VB is a religious requirement for some people Pendragon39 01:00, 13 March 2007 (UTC)
[edit] Very bad style
Yes. All the mentioned shortcomings are evident. A more thoroughly biased, ill-informed, and incompetently written article is hard to find. Ideally, this deserves a full rewrite by an expert, for a change.
