[Yeo Kheng Meng] had a question: what is the oldest x86 processor that is still supported ... the obvious answer is a 486. This supposition was tested, and the results are fantastic.

In late 1989, the 486 came out, offering faster speed and a built-in math coprocessor, required by CAD programs. First used in the IBM AT in 1984, Intel's 286 was a 16-bit CPU that addressed 16MB ...

The platform is remarkably small, and the board chosen for this build hosts a 486 processor running at 300 MHz. It has on-board VGA-compatible graphics but no Sound Blaster card, so he designed ...

Thanks to this upgrade, the Pentium could calculate division at a rate of two bits per clock cycle, while the 486 could only muster ... was embedded in the Pentium CPU itself and sent a letter ...