Sharp was making devices way ahead of their time and the Zaurus ZR-5800, which we happen to have on hand, out does today's devices in some ways.

While Windows Mobile was still trying to find its footing, Apple shows everyone exactly how a mobile OS should look and feel with the original iPhone.

This Ultra Mobile PC could run full Windows, and with the push of a button, could switch over to Windows Mobile, allowing for cellular texts and calls.

The ModBook was proof Apple enthusiasts wanted more mobility, without sacrificing power, but poor management ultimately doomed the product.

Dell unveils a technology specific to their business-class Latitude line that allows access to online essentals, email and web-browsing, without booting up.

Android was released to the public as an SDK, but it could only be virtualized within another OS; nonetheless, this gave us hope for quad-booting someday.

Often called the most "hackintoshable" computer ever, the Dell Mini 9 could be readily triple-booted (OSX, Windows, & Ubuntu), but lacked a mobile OS.

Apple began hitting its stride with their Mac lines with the introduction of aluminum-based designs with tons of customization possibilities.

While not a "mobile OS," right "out of the box" chromeOS was intended to offer extreme efficiency with its browser-based architecture.

The popularity of the "fat phone" culminates with Samsung's Tab 7.0, but they couldn't make calls, thanks to the FCC, unless you had the 7.7 - the European version.

Apple gradually began removing customization options, starting with the introduction of "built-in" memory in their "Retina Display" models.

The decision-making at Microsoft is disastrous, as seen in the release of Windows 8, but more notable with the discontinuation of Windows Phone.

By 2016, nothing in a Mac was customizable, except while ordering; plus, Apple introduced a security chip and removed the SDXC slot for added difficulties.

French coder, Sebanc, introduces a chromeOS emulator that can boot natively on certain computers; ZProLegend007 makes it compatible with T2 Macs.

2020 saw the last Intel-based Mac (besides the Xeon-based Mac Pro) with the introduction of Apple's "M" line of chips, which may never run Windows natively.

Google officially releasing a version of chromeOS Flex, which supports non-chromebooks and can be installed to removable media is a game-changer.

The founder of Think quadratic is fed up with his Surface Book, sells it, and reverts back to his old 2014 MacBook Pro, thus discovering new possibilities.

A mid-level Superuser believes others might find quad-booting intel-Macs interesting and he creates the "Think quadratic" brand.