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====Changing operating systems (temporarily)====
====Changing operating systems (temporarily)====
: Most computers have hardware (for example, central processing units, chips, disk drives, audio, video, and networking devices) that can work with other operating systems. So a Microsoft Windows computer can be booted with a different operating system, like one of the GNU/Linux variations that Sugar is built on.
: Most computers have hardware (for example, central processing units, chips, disk drives, audio, video, and networking devices) that can work with other operating systems. So a Microsoft Windows computer can be booted with a different operating system, like one of the GNU/Linux variations that Sugar is built on.
:: With ''Sugar on a Stick'', computers that normally run with Windows, Mac, or another operating system, can be booted from the plug-in USB/SD device, and so, run Sugar without interfering with the hard drive or normal operation of the computer. Following shutdown of a Sugar session, the computer can be booted normally with no traces of Sugar left behind.
:: With ''Sugar on a Stick'', computers that normally run with Windows, Mac, or another operating system, can be booted from the plug-in USB/SD device, and so, run Sugar without interfering with the hard drive or subsequent operation of the computer. Following shutdown of a Sugar session, the computer can be booted as before with no traces of Sugar left behind.
====Boot device recognition====
====Boot device recognition====
: When a computer is powered up, a short piece of software saved in the computer's [[wikipedia:firmware|firmware]] gives it instructions to look for instructions to load an operating system from one or another standard devices, such as hard disk drives or CD/DVD/USB/SD storage devices.
: When a computer is powered up, a short piece of software saved in the computer's [[wikipedia:firmware|firmware]] gives it instructions to look for instructions to load an operating system from one or another standard devices, such as hard disk drives or CD/DVD/USB/SD storage devices.