basic essay on computers from pc to mainframe with case study on networking

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alan hamilton 1998 From Desktop to super computer Today's desktop personal computers, or PCs, are many times more powerful than the huge, million-dollar business computers of the 1960s and 1970s. Most PCs can perform from 16 to 66 million operations per second, and some can even perform more than 100 million. These computers are used not only for household management and personal entertainment, but also for most of the automated tasks required by small businesses, including word processing, generating …

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…systems was far less practical. The solution was to make the speed and power of the network scalable by introducing cards as and when they became necessary. The network architecture was moved from a mixture of fixed-lines kilostreams and ISDN to triangulated network based on kilostream technology. As the triangulation is fine-tuned and more sophisticated routing is embedded, LFCDA will be able to use bandwidth to the absolute maximum, down to single application level prioritisation.