AS400


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AS400

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

AS/400

(Application System/400) The first generation of IBM's midrange business computers, which evolved into the Power Systems family. Introduced in 1988, the AS/400 served as a host or intermediate node to other AS/400s, as a remote system to mainframes and as a network server to PCs. Today, the Power Systems successors to the AS/400 are IBM's non-mainframe computer family. See Power Systems.

Designed to Consolidate
The AS/400's unique feature was its OS/400 environment, which included an integrated relational database, a feature of the earlier System/38. The AS/400 ran System/38 applications intact, but System/36 programs had to be recompiled. See OS/400, System/36 and System/38.

In 1994, IBM introduced the AS/400 Advanced System/36, a PowerPC-based version of the AS/400 that natively ran the System/36 SSP operating system and its applications. Starting that year, IBM's POWER CPUs were used in AS/400 models. See POWER CPU.


An Early AS/400
The AS/400 has been used in businesses of all sizes, and thousands of applications were written for it. (Image courtesy of IBM.)
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From 60 min till the end of the experiment, the AE As400 and the HEE Pa400 presented peaks higher than the reference-acarbose group (p < 0.05) and the positive control (p < 0.05).
Please feel free to contact us if you want to know more about our AS400 development services and how it can best suit your business model.
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