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was the first mainframe I used after the ICL 1900, and was even better, at least from a programmer's point of view. Its command language was the best I have used, despite being based on German rather than English. This raises a question: why are modern systems not improvements on the TR 440? Unix is even worse than ISPF on TSO on MVS on IBM mainframe, which was what at least scientific users of other mainframe systems used to mock, and which also I have worked on. We seem to have gone backwards in some respects, and not obviously necessarily.