Chapter 1. Cisco UCS Physical Architecture and Installing UCS Hardware

In previous decades, computers evolved at a dramatic pace. Moore's law, which predicted that the density of transistors and integrated circuits would double every two years as computing components kept on shrinking in size while improving in computational capacity, has truly prevailed. This technological evolution led to three distinct generations of computing devices.

We witnessed the era of the following generations:

  • Gigantic mainframe computers
  • Commoditized personal computers and tower and rack servers (also known as pizza-box servers)
  • Blade servers (also known as modular servers)

Mainframes were monolithic systems often with proprietary hardware and software. With their enormous ...

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