![]() ![]() Local-area networks or LANs allow thousands of machines within a building or campus to be connected in such a way that small amounts of information can be transferred in a few microseconds or so. The second development was the invention of high-speed computer networks. In any case, the current generation of machines have the computing power of the mainframes deployed 30 or 40 years ago, but for 1/1000th of the price or less. With multicore CPUs, we now are refacing the challenge of adapting and developing programs to exploit parallelism. Initially, these were 8-bit machines, but soon 16-, 32-, and 64-bit CPUs became common. The first was the development of powerful microprocessors. Starting in the mid-1980s, however, two advances in technology began to change that situation. Moreover, for lack of a way to connect them, these computers operated independently from one another. ![]() From 1945, when the modern computer era began, until about 1985, computers were large and expensive. The pace at which computer systems change was, is, and continues to be overwhelming. ![]()
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