Just go on a search engine and type in something like "best
software manufacturers".
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Android is an "operating system" - that is software - that can
run on many manufacturers' computer hardware. There is no such
thing as "an Android Box".
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There are over 100 manufactures. Click the link for the list.
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There is a huge quantity of PC hardware manufacturers including
Dell, Toshiba and Asus. One can easily find a list of hardware
manufacturers and could possibly even find the one the most
recommended or most popular.