7.2. Evolution of distributed systems for the workplace

In the 1970s local area network (LAN) communications technology became available, see Chapter 3. The lightweight protocols which exploited the low error rates and high bandwidth made it possible to base distributed systems on frequent interaction between component systems. A number of design trade-offs were explored in research environments. Issues to be decided were what kind of system to put on each user's desk and what to provide as shared services, across the network.

Pool of processors plus servers (Figure 7.1(a))

Figure 7.1(a). Distributed system evolution: Pool of processors plus servers. ...

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