Purpose - The purpose of this paper is to review some applications of supercomputers, with the observation that a readily available PlayStation can rival supercomputers of a decade ago. Applications to ocean modelling and to examination of possibilities for quantum computing are discussed. Also discussed are the meaning of the term Wiki, and uses of Wikis in language learning. Design/methodology/approach - The aim is to review developments on the internet, especially those of general cybernetic interest. Findings - Supercomputers have valuable applications in biological modelling, medical record keeping and climatic studies and there is particular interest in their use to explore possibilities of quantum computing which may be the key to more powerful machines of the future. The value of Wikis is not confined to the Wikipedia. Practical implications - PlayStations are likely to be taken seriously as programmable computers in certain areas. Possibilities for a new generation of quantum computers are discussed, as is also the use of Wikis in language learning. Originality/value - It is hoped this is a valuable periodic review.
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