Ein paar Gegenbeispiele wurden hier mal zusammengestellt. (PDF)
Relevant hier vor allem wegen:
- Codd: “A Relational Model of Data for Large Shared Data Banks.”
- Shannon: “A Mathematical Theory of Communication”
- Turing: “On Computable Numbers, with an application to the Entscheidungsproblem”
The author claims that “semantic aspects of communication are irrelevant to the engineering problems,” which seems to indicate that his theory is suitable mostly for transmitting gibberish. [...] I don’t understand the relevance of discrete sources: No matter what one does, in the end, the signal will have to be modulated using good old-fashioned vacuum tubes, so the signal on the “channel” will always be analogical.
the IBM method presents the problem of distributing the encryption key, but their method is a standard and we must live with it
a recent [...] memo stated that a dozen or so such machines will be sufficient for all the computing that we’ll ever need in the foreseeable future