While there are many milestones in the history of computing, few are as important as the introduction of the #Intel 8086 microprocessor, a 16-bit CPU that laid the foundation for the client-server, multi-tier systems architecture that dominates just about every IT environment today, 40 years after it was brought to market in 1976. Other than the IBM mainframe, which began with the System/360 in 1964 and used code that can run emulated on modern IBM System z systems in 2017, no computing systems architecture has managed to survive the ages in widespread, continuous use that long.
In industry terms, where major paradigms tend to shift every five or 10 years, the x86 is a true dinosaur.
Although the Intel x86 architecture was first released with the introduction of the 8086 microprocessor in 1976, it wasn't until 1981 when an 8-bit derivative, the 8088, was chosen for the original IBM PC.
As PC generations evolved, it gave rise to the 286, the 386 (which was the first 32-bit version), the 486, the Pentium, the Pentium Pro, the Pentium II, the Pentium III, the Pentium 4, and so on.
Depending on who you talk to, it is generally regarded that we are now in the seventh generation of the Intel x86 architecture.
A lot of things have transpired in the IT industry since 1981. Workgroup LANs, PC servers, enterprise servers, multi-tier applications, wide area networks, widespread internet use, virtualization, and now the cloud, just to name a few.
Never mind the utter explosion of mobile device proliferation, and I'm also ignoring the Open Source revolution, as well as a bunch of other things related to software development methodology and multiple generations of programming languages.
http://www.zdnet.com/article/intel-x86-no-cloud-for-you/
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